UNITED STATESSECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



FORM 20-F

(Mark One)

|o |  | REGISTRATION STATEMENT PURSUANT TO SECTION 12(b)
    or (g) OF THE SECURITIES EXCHANGE ACT OF 1934
|- |  | --------------------------------------------------------------------------------------------------

OR

|x |  | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
    EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2016
|- |  | -----------------------------------------------------------------------------------------------------------------------------------

OR

|o |  | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
    EXCHANGE ACT OF 1934
|- |  | --------------------------------------------------------------------------------------------

OR

|o |  | SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
    EXCHANGE ACT OF 1934
|- |  | -----------------------------------------------------------------------------------------------



Commission file number: 000-31815



|HYDROGENICS
                                         CORPORATION -
        CORPORATION HYDROGÉNIQUE                                                                                                      
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(Exact name of Registrant as specified in its
    charter)                                                                                                                                               
|                                                                                                                                                                                                         
|Canada                                                                                                                                                                                                   
|(Jurisdiction of incorporation or organization)                                                                                                                                                          
|                                                                                                                                                                                                         
|220 Admiral Boulevard
        Mississauga, Ontario
        Canada L5T 2N6
        (905) 361-3660                                                                                                         
|(Address of principal executive office)                                                                                                                                                                  
|                                                                                                                                                                                                         
|Robert Motz, Chief
                                         Financial Officer
        220 Admiral Boulevard
        Mississauga, Ontario
        Canada L5T 2N6
        (905) 361-3638 Fax (905) 361-3626
|(Name, Telephone, Email and/or Facsimile number
    and Address of Company Contact Person)                                                                                                               





Securities registered or to be registered pursuant to Section 12(b)
of the Act.



|Title of each class |  | Name of each exchange on which
    registered
|------------------- |  | ---------------------------------------------
|Common Shares       |  | The Nasdaq Global Market                     



Securities registered or to be registered pursuant to Section 12(g)
of the Act.

None



Securities for which there is a reporting obligation pursuant to
Section 15(d) of the Act.

None
Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of
the period covered by the annual report.



At December 31, 2016, 12,544,960 common shares were issued and
outstanding







Hydrogenics Corporation


Indicate by check mark if the registrant is a well-known seasoned issuer, as defined
in Rule 405 of the Securities Act.



|Yes    o |  | No    x
|-------- |  | -------



If this report is an annual or transition report, indicate by check mark if the registrant
is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.



|Yes    o |  | No    x
|-------- |  | -------



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such
shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements
for the past 90 days.



|Yes    x |  | No    o
|-------- |  | -------



Indicate by check mark whether the registrant has submitted electronically
and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule
405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant
was required to submit and post such files).



|Yes    x |  | No    o
|-------- |  | -------



Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2
of the Exchange Act.



|                             |  |                        |  |                           
|---------------------------- |  | ---------------------- |  | --------------------------
|Large accelerated filer    o |  | Accelerated filer    o |  | Non-accelerated filer    x



Indicate by check mark which basis of accounting the registrant has used to prepare
the financial statements included in this filing:



|             |  |                                                                                                               |  |          
|------------ |  | ------------------------------------------------------------------------------------------------------------- |  | ---------
|US GAAP    o |  | International Financial Reporting Standards as issued   x
    by the International Accounting Standards Board |  | Other   o



If “Other” has been checked in response to the previous question, indicate
by check mark which financial statement item the registrant has elected to follow.



|             |  |             
|------------ |  | ------------
|Item 17    o |  | Item 18    o



If this is an annual report, indicate by check mark whether the registrant is
a shell company (as defined in Rule 12b-2 of the Exchange Act).



|         |  |        
|-------- |  | -------
|Yes    o |  | No    x








Hydrogenics Corporation


TABLE OF CONTENTS



|INTRODUCTION
AND USE OF CERTAIN TERMS | 1                                                                           
|------------------------------------- | ----------------------------------------------------------------------------
|FORWARD-LOOKING
STATEMENTS            | 1                                                                           
|PART
I                                | 3                                                                           
|ITEM
1.                               | IDENTITY
OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS                       
|ITEM
2.                               | OFFER
STATISTICS AND EXPECTED TIMETABLE                                     
|ITEM
3.                               | KEY
INFORMATION                                                             
|ITEM
4.                               | INFORMATION
ON THE COMPANY                                                  
|ITEM
4A.                              | UNRESOLVED
STAFF COMMENTS                                                   
|ITEM
5.                               | OPERATING
AND FINANCIAL REVIEW AND PROSPECTS                                
|ITEM
6.                               | DIRECTORS,
SENIOR MANAGEMENT AND EMPLOYEES                                  
|ITEM
7.                               | MAJOR
SHAREHOLDERS AND RELATED PARTY TRANSACTIONS                           
|ITEM
8.                               | FINANCIAL
INFORMATION                                                       
|ITEM
9.                               | THE
OFFER AND LISTING                                                       
|ITEM
10.                              | ADDITIONAL
INFORMATION                                                      
|ITEM
11.                              | QUANTITATIVE
AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK                  
|ITEM
12.                              | DESCRIPTION
OF SECURITIES OTHER THAN EQUITY SECURITIES                      
|PART
II                               | 80                                                                          
|ITEM
13.                              | DEFAULTS,
DIVIDEND ARREARAGES AND DELINQUENCIES                             
|ITEM
14.                              | MATERIAL
MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
|ITEM
15.                              | CONTROLS
AND PROCEDURES                                                     
|ITEM
16A.                             | AUDIT
COMMITTEE FINANCIAL EXPERT                                            
|ITEM
16B.                             | CODE
OF ETHICS                                                              
|ITEM
16C.                             | PRINCIPAL
ACCOUNTANT FEES AND SERVICES                                      
|ITEM
16D.                             | EXEMPTIONS
FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES                  
|ITEM
16E.                             | PURCHASES
OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS      
|ITEM
16F.                             | CHANGE
IN REGISTRANT’S CERTIFYING ACCOUNTANT                                
|ITEM
16G.                             | CORPORATE
GOVERNANCE                                                        
|PART
III                              | F1                                                                          
|ITEM
17.                              | FINANCIAL
STATEMENTS                                                        
|ITEM
18.                              | FINANCIAL
STATEMENTS                                                        
|ITEM
19.                              | EXHIBITS                                                                    





FORM 20-FPage i


Hydrogenics Corporation




INTRODUCTION AND
USE OF CERTAIN TERMS



In this Form 20-F, references to the “United
States” or to “US” are to the United States of America. You will find the words “we,” “our,”
“us” and similar words or phrases in this Form 20-F. We use those words to comply with the requirement of the
US Securities and Exchange Commission to use “plain English” in public documents like this Form 20-F. Each executive
identified in this Form 20-F reports directly to other executives of the Company by whom the executive is employed, or to
the Company’s Board of Directors (the “Board”).



In this Form 20-F, unless the context otherwise requires, the terms
“Hydrogenics,” “Company,” “Corporation,” “we,” “us” and “our”
refer to Hydrogenics Corporation, the Registrant, and its consolidated subsidiaries and, where the context requires, includes
our predecessor (“Old Hydrogenics”) and its consolidated subsidiaries prior to October 27, 2009. References to
“common shares” or “Shares” herein refer to common shares of Hydrogenics.



Unless otherwise indicated, all dollar amounts
are expressed in US dollars, references to “US $”, “$” or “dollar” are to US dollars, and
references to “CA $” are to Canadian dollars.



PRESENTATION OF FINANCIAL INFORMATION



The financial information in this Form 20-F
has been prepared in accordance with International Financial Reporting Standards (“IFRS”). The Company adopted IFRS
as of January 1, 2011. Please note that any prior financial statements filed with or furnished to the SEC were prepared in accordance
with Canadian generally accepted accounting principles, which may not be comparable to the financial statements contained herein.



FORWARD-LOOKING
STATEMENTS



This Form 20-F contains “forward-looking
information,” within the meaning of applicable Canadian securities laws and “forward-looking statements” within
the meaning of the United States Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking
statements”). Forward-looking statements can be identified by the use of words, such as “plans,” “expects,”
or “is expected,” “budget,” “scheduled,” “estimates,” “forecasts,”
“intends,” “anticipates,” or “believes” or variations of such words and phrases or state that
certain actions, events or results “may,” “could,” “would,” “might” or “will”
be taken, occur or be achieved. These forward-looking statements relate to, among other things, our future results, levels of
activity, performance, goals or achievements or other future events. These forward-looking statements are based on current expectations
and various assumptions and analyses made by us in light of our experience and our perceptions of historical trends, current conditions
and expected future developments and other factors that we believe are appropriate in the circumstances. These forward-looking
statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ
materially from those anticipated in our forward-looking statements.



These risks, uncertainties and factors include, but are not limited
to: our inability to execute our business plan, or to grow our business; inability to address a slow return to economic growth,
and its impact on our business, results of operations and consolidated financial condition; our limited operating history; inability
to implement our business strategy; fluctuations in our quarterly results; failure to maintain our customer base that generates
the majority of our revenues; currency fluctuations; failure to maintain sufficient insurance coverage; changes in value of our
goodwill; failure of a significant market to develop for our products; failure of hydrogen being readily available on a cost-effective
basis; changes in government policies and regulations; lack of new government policies and regulations for the energy storage
technologies; failure of uniform codes and standards for hydrogen fuelled vehicles and related infrastructure to develop; liability
for environmental damages resulting from our research, development or manufacturing operations; failure to compete with other
developers and manufacturers of products in our industry; failure to compete with developers and manufacturers of traditional
and alternative technologies; failure to develop partnerships with original equipment manufacturers, governments, systems integrators
and other third parties; inability to obtain sufficient materials and components for our products from suppliers; failure to manage
expansion of our operations; failure to manage foreign sales and operations; failure to recruit, train and retain key management
personnel; inability to integrate acquisitions; failure to develop adequate manufacturing processes and capabilities; failure
to complete the development of commercially viable products; failure to produce cost-competitive products; failure or delay in
field testing of our products; failure to produce products free of defects or errors; inability to adapt to technological advances
or new codes and standards; failure to protect our intellectual property; our involvement in intellectual property litigation;
exposure to product liability claims; failure to meet rules regarding passive foreign investment companies; actions of our significant
and principal shareholders; failure to maintain the requirements for continued listing on Nasdaq; dilution as a result of significant
issuances of our common shares and preferred shares; inability of US investors to enforce US civil liability judgments against
us; volatility of our common share price; and dilution as a result of the exercise of options. These risk factors and others are
discussed in more detail herein, including under “Item 3. Key Information — Risk Factors,” “Item 4. Information
on the Company,” and “Item 5. Operating and Financial Review and Prospects.”





FORM 20-FPage 1


Hydrogenics Corporation


These factors may cause the Corporation’s actual performance
and financial results in future periods to differ materially from any estimates or projections of future performance or results
expressed or implied by such forward-looking statements. Forward-looking statements do not take into account the effect that transactions
or non-recurring or other special items announced or occurring after the statements are made have on the Corporation’s business.
For example, they do not include the effect of business dispositions, acquisitions, other business transactions, asset writedowns
or other charges announced or occurring after forward-looking statements are made. The financial impact of such transactions and
non-recurring and other special items can be complex and necessarily depends on the facts particular to each of them.



We believe the expectations represented by our
forward-looking statements are reasonable, yet there can be no assurance that such expectations will prove to be correct. The
purpose of the forward-looking statements is to provide the reader with a description of management’s expectations regarding
the Company’s fiscal 2017 financial performance and may not be appropriate for other purposes. Furthermore, unless otherwise
stated, the forward-looking statements contained herein are made as of the date of this Form 20-F, and we do not undertake any
obligation to update publicly or to revise any of the included forward-looking statements, whether as a result of new information,
future events or otherwise unless required by applicable legislation or regulation. The forward-looking statements contained in
this report are expressly qualified by this cautionary statement.









FORM 20-FPage 2


Hydrogenics Corporation


PART I



|ITEM 1. |  | IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS
|------- |  | -----------------------------------------------------



Not applicable.



|ITEM 2. |  | OFFER STATISTICS AND EXPECTED TIMETABLE
|------- |  | ---------------------------------------



Not applicable.



|ITEM 3. |  | KEY INFORMATION
|------- |  | ---------------



Selected Financial Data



All financial data presented in this Form 20-F with respect
to the years ended December 31, 2016, 2015 and 2014 are qualified in their entirety by reference to the relevant information
in the consolidated financial statements and their notes.























FORM 20-FPage 3


Hydrogenics Corporation


HYDROGENICS CORPORATIONSELECTED FINANCIAL INFORMATION(Thousands of US dollars, exceptfor share and per share amounts)



|                                                                                           |  | 2016 |            | 2015 |  | 2014 |            | 2013 |  | 2012
|------------------------------------------------------------------------------------------ |  | ---- | ---------- | ---- |  | ---- | ---------- | ---- |  | ----
|Consolidated Balance Sheet Data                                                            |  |      |            |      |  |      |            |      |  |     
|Cash and cash equivalents                                                                  |  | $    | 10,338     |      |  | $    | 23,398     |      |  | $   
|Restricted cash                                                                            |  |      | 940        |      |  |      | 1,503      |      |  |     
|Total Assets                                                                               |  |      | 49,435     |      |  |      | 59,368     |      |  |     
|Shareholders’ Equity                                                                       |  |      |            |      |  |      |            |      |  |     
|Common shares                                                                              |  |      | 365,923    |      |  |      | 365,824    |      |  |     
|Contributed surplus                                                                        |  |      | 19,255     |      |  |      | 18,964     |      |  |     
|Deficit                                                                                    |  |      | (371,173   | )    |  |      | (361,316   | )    |  |     
|Accumulated other comprehensive loss                                                       |  |      | (3,623     | )    |  |      | (3,224     | )    |  |     
|Total Shareholders’ Equity                                                                 |  | $    | 10,382     |      |  | $    | 20,248     |      |  | $   
|                                                                                           |  |      |            |      |  |      |            |      |  |     
|Consolidated Statements of Income Data                                                     |  |      |            |      |  |      |            |      |  |     
|Revenues                                                                                   |  | $    | 28,990     |      |  | $    | 35,864     |      |  | $   
|Cost of revenues                                                                           |  |      | 22,995     |      |  |      | 29,893     |      |  |     
|Gross profit                                                                               |  |      | 5,995      |      |  |      | 5,971      |      |  |     
|Loss from operations                                                                       |  |      | (8,406     | )    |  |      | (8,314     | )    |  |     
|Net loss for the year                                                                      |  |      | (9,857     | )    |  |      | (11,442    | )    |  |     
|                                                                                           |  |      |            |      |  |      |            |      |  |     
|Net loss per share / Net loss from continuing operations per share                         |  |      |            |      |  |      |            |      |  |     
|Basic and diluted                                                                          |  | $    | (0.79      | )    |  | $    | (1.12      | )    |  | $   
|Weighted average number of shares used in calculating basic and diluted net loss per share |  |      | 12,542,950 |      |  |      | 10,199,015 |      |  |     





We have never declared or paid any cash dividends on our common shares.





CAPITALIZATION AND INDEBTEDNESS



Not applicable.



Reasons for the offer and use of proceeds



Not applicable.





FORM 20-FPage 4


Hydrogenics Corporation


Risk Factors



Risk Factors Related to Our Financial Condition



Our inability to generate sufficient cash flows, raise additional
capital and actively manage our liquidity may impair our ability to execute our business plan, and result in our reducing or eliminating
product development and commercialization efforts, reducing our sales and marketing efforts, and having to forego attractive business
opportunities.



At December 31, 2016, we had approximately $11.3 million of cash
and cash equivalents and restricted cash (2015 - $24.9 million). Restricted cash of $0.9 million is held as partial security for
standby letters of credit and letters of finance. There are uncertainties related to the timing and use of our cash resources
and working capital requirements. These uncertainties include, among other things, the timing and volume of commercial sales and
associated gross margins of our existing products and the development of markets for, and customer acceptance of, new products.
To the extent possible, we attempt to limit the significance of these risks by: (i) continually monitoring our sales prospects;
(ii) continually aiming to reduce product cost; and (iii) advancing our technology platforms and product designs. However, given
that many of the above noted factors are outside of our control, we may not be able to accurately predict our necessary cash expenditures
or obtain financing in a timely manner to cover any shortfalls.



If we are unable to generate sufficient cash flows or obtain adequate
additional financing which, given the current global economy and credit markets, is challenging, we may be unable to respond to
the actions of our competitors or we may be prevented from executing our business plan, or conducting all or a portion of our
planned operations. In particular, the development and commercialization of our products could be delayed or discontinued if we
are unable to fund our research and product development activities or the development of our manufacturing capabilities. In addition,
we may be forced to reduce our sales and marketing efforts or forego attractive business opportunities.



The uncertain and unpredictable condition of the global economy
could have a negative impact on our business, results of operations and consolidated financial condition, or our ability to accurately
forecast our results, and it may cause a number of the risks that we currently face to increase in likelihood, magnitude and duration.



While we continuously monitor the state of the broader economic
climate and, particularly, the markets in which we operate, the uncertain and unpredictable condition of the current global economy
and credit markets affects our outlook in three distinct ways. First, our products depend to some degree on general world economic
conditions and activity. If the current condition of the economy declines or we experience a continued slow return to economic
growth, demand for our products is not likely to increase significantly. Second, the current uncertain economic climate could
adversely affect our ability to conduct normal day-to-day selling activities, which depend on the granting of short-term credit
to a wide variety of purchasers and, particularly, the corresponding needs of those purchasers. Third, those purchasers have a
corresponding need to finance purchases by accessing their own lines of credit, which could become increasingly difficult. If
the current condition of the economy does not continue to improve, our business will likely be adversely affected.



In the case of an economic decline or a sustained period of slow
economic growth, we expect to experience significant difficulties on a number of fronts. As a result, we may face new risks as
yet unidentified. In addition, a number of risks that we ordinarily face and that are further described herein may increase in
likelihood, magnitude and duration. These risks include but are not limited to deferrals or reductions of customer orders, potential
deterioration of our customers’ ability to finance purchases, reduced revenue, further deterioration in our cash balances
and liquidity due to negative foreign currency exchange rates, and an inability to access capital markets.



Our operating results may be subject to currency fluctuation.



Our monetary assets and liabilities denominated in currencies other
than the US dollar will give rise to a foreign currency gain or loss reflected in net income (loss). To the extent the Canadian
dollar or the Euro strengthens against the US dollar, we may incur foreign exchange losses on our net consolidated monetary asset
balance, which is denominated in those currencies. Such losses would be included in our financial results, and consequently, may
have an adverse effect on our share price.





FORM 20-FPage 5


Hydrogenics Corporation


As we currently have operations based in Canada and Europe, a significant
portion of our expenses are in Canadian dollars and Euros. However, a significant part of our revenues are currently generated
in US dollars and Euros, and we expect this will continue for the foreseeable future. In addition, we may be required to finance
our European operations by exchanging Canadian dollars or US dollars into Euros. The exchange rates between the Canadian dollar,
the US dollar and the Euro are subject to daily fluctuations in the currency markets and these fluctuations in market exchange
rates are expected to continue in the future. Such fluctuations affect both our consolidated revenues as well as our consolidated
costs. If the value of the US dollar weakens against the Canadian dollar or the Euro, the profit margin on our products may be
reduced. Also, changes in foreign exchange rates may affect the relative costs of operations and prices at which we and our foreign
competitors sell products in the same market. While we continuously monitor foreign exchange fluctuations and review forecasted
changes regularly, we currently have limited currency hedging through financial instruments. We carry a portion of our short-term
investments in Canadian dollars and Euros.



Our mix of revenues in the recent past does not reflect our
current business strategy, it may be difficult to assess our business and future prospects.



For the year ended December 31, 2016, we derived $17.5 million
or 60% of revenues from our sales of hydrogen generation products and services and $11.5 million, or 40%, of our revenues from
sales of power products and services. For the year ended December 31, 2015, we derived $23.6 million or 66% of revenues from our
sales of hydrogen generation products and services and $12.3 million, or 34%, of our revenues from sales of power products and
services. Our current business strategy is to develop, manufacture and sell hydrogen energy storage systems, hydrogen generation
products and fuel cell power products in larger quantities. Because we have made limited sales of hydrogen energy storage systems
and fuel cell power products to date, our historical operating data may be of limited value in evaluating our future prospects.



We may not be able to implement our business strategy and the price of our common
shares may decline.



We have not generated positive net income since our inception.
Our current business strategy is to develop a portfolio of hydrogen and fuel cell products with market leadership positions for
each product. In so doing, we will continue to incur significant expenditures for general administrative activities, including
sales and marketing and product research and development. As a result of these costs, we will need to generate and sustain significantly
higher revenues and positive gross margins to achieve and sustain profitability. We incurred net loss for the year ended December
31, 2016 of $9.9 million, and a net loss for the year ended December 31, 2015 of $11.7 million, and a net loss for the year ended
December 31, 2014 of $4.5 million. Our accumulated deficit as at December 31, 2016 was $371.2 million, at December 31, 2015 was
$361.6 million, and at at December 31, 2014 was $349.6 million.



As noted above, our strategy to limit the significance of these
risks and uncertainties is to execute a business plan aimed at increasing market penetration to achieve forecasted revenues, improving
operating cash flows, continuing to invest in product research and development, entering into complementary markets, improving
overall gross margins, and securing additional financing to fund our operations as needed. However, we expect to incur significant
operating expenses over the next several years. Accordingly, we may not be able to implement our business strategy and the price
of our common shares may decline.



Our quarterly operating results are likely to fluctuate significantly
and may fail to meet the expectations of securities analysts and investors and may cause the price of our common shares to decline.



Our quarterly revenues and operating results have varied significantly
in the past and are likely to vary in the future. These quarterly fluctuations in our operating performance result from the length
of time between our first contact with a customer and the recognition of revenue from sales to that customer. Some of our products
are highly engineered and many are still in development stages; therefore, the length of time between approaching a customer and
delivering our products to that customer can span many quarterly periods. In many cases, a customer’s decision to buy our
products and services may require the customer to change its established business practices and to conduct its business in new
ways. As a result, we must educate customers on the use and benefits of our products and services. This can require us to commit
significant time and resources without necessarily generating any revenues. Many potential customers may wish to enter into trial
arrangements with us in order to use our products and services on a trial basis. The success of these trials may determine whether
or not the potential customer purchases our products or services on a commercial basis. Potential customers may also need to obtain
approval at a number of management levels and one or more regulatory approvals. This may delay a decision to purchase our products.





FORM 20-FPage 6


Hydrogenics Corporation


The length and variability of the sales cycles for our products
make it difficult to forecast accurately the timing and amount of specific sales and corresponding revenue recognition. The delay
or failure to complete one or more large sales transactions could significantly reduce our revenues for a particular quarter.
We may expend substantial funds and management effort during our sales cycle with no assurance that we will successfully sell
our products. As a result, our quarterly operating results are likely to fluctuate significantly and we may fail to meet the expectations
of securities analysts and investors, and the price of our common shares may decline.



We currently depend on a relatively limited number of customers
for a majority of our revenues and a decrease in revenue from these customers could materially adversely affect our business,
consolidated financial condition and results of operations.



While our business plan and sales and marketing strategy contemplates
a diverse base of future customers, to date a relatively limited number of customers have accounted for a majority of our revenues
and we expect they will continue to do so for the foreseeable future. Our four largest customers accounted for 35% of revenues
for the year ended December 31, 2016 (29% of revenues for the year ended December 31, 2015, 39% of revenues for the year ended
December 31, 2014). The identities of some of our largest customers have changed from year to year. Our arrangements with these
customers are generally non-exclusive, have no volume commitments and are often on a purchase order basis. We cannot be certain
customers who have accounted for significant revenue in past periods will continue to purchase our products and allow us to generate
revenues. Accordingly, our revenue and results of operations may vary from period to period. We are also subject to credit risk
associated with the concentration of our accounts receivable from these significant customers. If one or more of these significant
customers were to cease doing business with us, significantly reduce or delay purchases from us, or fail to pay on a timely basis,
our business, consolidated financial condition and results of operations could be materially adversely affected.



Our insurance may not be sufficient.



We carry insurance that we consider adequate considering the nature
of the risks and costs of coverage. We may not, however, be able to obtain insurance against certain risks or for certain products
or other resources located from time to time in certain areas of the world. We are not fully insured against all possible risks,
nor are all such risks insurable. Thus, although we maintain insurance coverage, such coverage may not be adequate.



Certain external factors may affect the value of goodwill, which
may require us to recognize an impairment charge.



Goodwill arising from our acquisition of Stuart Energy in 2005
comprises approximately 8.2% of our total assets at December 31, 2016 (6.9% of our total assets at December 31, 2015, 9.6% of
our total assets at December 31, 2014). Economic, market, legal, regulatory, competitive, customer, contractual and other factors
may affect the value of goodwill. If any of these factors impair the value of these assets, accounting rules require us to reduce
their carrying value and recognize an impairment charge. This would reduce our reported assets and earnings in the year the impairment
charge is recognized.



Risk Factors Related to Our Business and Industry



Significant markets for fuel cell and other hydrogen energy
products may never develop or may develop more slowly than we anticipate. This would significantly harm our revenues and may cause
us to be unable to recover the losses we have incurred and expect to incur in the development of our products.





FORM 20-FPage 7


Hydrogenics Corporation


Significant markets may never develop for fuel cell and other hydrogen
energy products or they may develop more slowly than we anticipate. Any such delay or failure would significantly harm our revenues
and we may be unable to recover the losses we have incurred and expect to continue to incur in the development of our products.
If this were to occur, we may never achieve profitability and our business could fail. Fuel cell and other hydrogen energy products
represent an emerging market, and whether or not end-users will want to use them may be affected by many factors, some of which
are beyond our control, including: the emergence of more competitive technologies and products; other environmentally clean technologies
and products that could render our products obsolete; the future cost of hydrogen and other fuels used by our fuel cell products;
the future cost of the membrane electrode assembly used in our fuel cell products; the future cost of platinum group metals, a
key catalyst used in our fuel cell and hydrogen generation products; the regulatory requirements of agencies, including the development
of uniform codes and standards for fuel cell products, hydrogen refueling infrastructure and other hydrogen energy products; government
support by way of legislation, tax incentives, policies or otherwise, of fuel cell technology, hydrogen storage technology and
hydrogen refueling technology; the manufacturing and supply costs for fuel cell components and systems; the perceptions of consumers
regarding the safety of our products; the willingness of consumers to try new technologies; the continued development and improvement
of existing power technologies; and the future cost of fuels used in existing technologies.



Hydrogen may not be readily available on a cost-effective basis,
in which case our fuel cell products may be unable to compete with existing power sources and our revenues and results of operations
would be materially adversely affected.



If our fuel cell product customers are not able to obtain hydrogen
on a cost-effective basis, we may be unable to compete with existing power sources and our revenues and results of operations
would be materially adversely affected. Our fuel cell products require oxygen and hydrogen to operate. While ambient air can typically
supply the necessary oxygen, our fuel cells rely on hydrogen derived from water or from fuels, such as natural gas, propane, methanol
and other petroleum products. We manufacture and develop hydrogen generation systems called electrolyzers that use electricity
to separate water into its constituent parts of hydrogen and oxygen. In addition, third parties are developing systems to extract,
or reform, hydrogen from fossil fuels. Significant growth in the use of hydrogen powered devices, particularly in the motive power
market, may require the development of an infrastructure to deliver the hydrogen. There is no guarantee that such an infrastructure
will be developed on a timely basis or at all. Even if hydrogen is available for our products, if its price is such that electricity
or power produced by our systems would cost more than electricity provided by other means, we may be unable to compete successfully.



Changes in government policies and regulations could hurt the market for our products.



The fuel cell and hydrogen industry is in its development phase
and is not currently subject to industry specific government regulations in Canada, the European Union, the United States, as
well as other jurisdictions, relating to matters such as design, storage, transportation and installation of fuel cell systems
and hydrogen infrastructure products. However, given that the production of electrical energy has typically been an area of significant
government regulation, we expect we will encounter industry specific government regulations in the future in the jurisdictions
and markets in which we operate. For example, regulatory approvals or permits may be required for the design, installation and
operation of stationary fuel cell systems under federal, state and provincial regulations governing electric utilities and motive
power fuel cell systems under federal, state and provincial emissions regulations affecting automobile and truck manufacturers.
To the extent there are delays in gaining such regulatory approval, our development and growth may be constrained. Furthermore,
the inability of our potential customers to obtain a permit, or the inconvenience often associated with the permit process, could
harm demand for fuel cell and other hydrogen products and, therefore, harm our business.



Our business will suffer if environmental policies change and no
longer encourage the development and growth of clean power technologies. The interest by automobile manufacturers in fuel cell
technology has been driven in part by environmental laws and regulations. There is no guarantee these laws and regulations will
not change and any such changes could result in automobile manufacturers abandoning their interest in fuel cell powered vehicles.
In addition, if current laws and regulations are not kept in force, or if further environmental laws and regulations are not adopted,
demand for vehicular fuel cells may be limited.



The market for stationary and portable energy related products
is influenced by federal, state and provincial government regulations and policies concerning the electric utility industry. Changes
in regulatory standards or public policy could deter further investment in the research and development of alternative energy
sources, including fuel cells and fuel cell products, and could result in a significant reduction in the potential market demand
for our products. We cannot predict how changing government regulation and policies regarding the electric utility industry will
affect the market for stationary and portable fuel cell systems.





FORM 20-FPage 8


Hydrogenics Corporation


Although the development of alternative energy sources and, in
particular, fuel cells, has been identified as a significant priority by many governments, we cannot be assured that governments
will not change their priorities or that any such change would not materially affect our revenues and our business. If governments
change their laws and regulations such that the development of alternative energy sources is no longer required or encouraged,
the demand for alternative energy sources, such as our fuel cell products may be significantly reduced or delayed and our sales
would decline.



Lack of new government policies and regulations for the energy
storage technologies could hurt the development of the Power-to-Gas market for our hydrogen energy storage products.



One of the critical factors for Power-to-Gas project developers
in securing project financing, or to justify the capital investment internally, is the ability to monetize a sufficient portion
of the “diffused benefits” of the project.  This may be accomplished through a contract mechanism or a combination
of new market reforms such as provision of new ancillary services such as load following or ramping service, tariffs for renewable
gas, and favourable electricity purchase provisions (eg. special exemption for transmission and network uplifts and other charges
on wholesale power purchases).  While Power-to-Gas demonstration projects are being built today, if new government regulations
for large scale energy storage projects are not implemented, or are not sufficient to justify the investment by project developers,
it would critically impede our ability to sell electrolyzers for commercial-scale Power-to-Gas into those markets.



The development of uniform codes and standards for hydrogen
powered vehicles and related hydrogen refueling infrastructure may not develop in a timely fashion, if at all.



Uniform codes and standards do not currently exist for fuel cell
systems, fuel cell components, hydrogen internal combustion engines or for the use of hydrogen as a vehicle fuel. Establishment
of appropriate codes and standards is a critical element to allow fuel cell system developers, fuel cell component developers,
hydrogen internal combustion engine developers, hydrogen infrastructure companies and hydrogen storage and handling companies
to develop products that will be accepted in the marketplace.



The development of hydrogen standards is being undertaken by numerous
organizations. Given the number of organizations pursuing hydrogen codes and standards, it is not clear whether universally accepted
codes and standards will occur in a timely fashion, if at all.



We could be liable for environmental damages resulting from
our research, development or manufacturing operations.



Our business exposes us to the risk of harmful substances escaping
into the environment, resulting in personal injury or loss of life, damage to or destruction of property, and natural resource
damage. Depending on the nature of the claim, our current insurance policies may not adequately reimburse us for costs incurred
in settling environmental damage claims and, in some instances, we may not be reimbursed at all. Our business is subject to numerous
laws and regulations that govern environmental protection and human health and safety. These laws and regulations have changed
frequently in the past and it is reasonable to expect additional more stringent changes in the future. Our operations may not
comply with future laws and regulations and we may be required to make significant unanticipated capital and operating expenditures.
If we fail to comply with applicable environmental laws and regulations, government authorities may seek to impose fines and penalties
on us, or to revoke or deny the issuance or renewal of operating permits, and private parties may seek damages from us. Under
those circumstances, we might be required to curtail or cease operations, conduct site remediation or other corrective action,
or pay substantial damage claims.



We currently face and will continue to face significant competition
from other developers and manufacturers of fuel cell power products and hydrogen generation systems. If we are unable to compete
successfully, we could experience a loss of market share, reduced gross margins for our existing products and a failure to achieve
acceptance of our proposed products.



In our markets for hydrogen generation systems, we compete with
a number of companies that develop and manufacture hydrogen generation products based on on-site water electrolysis and/or reforming
technologies. We also compete with suppliers of hydrogen gas that deliver hydrogen to the customer’s site in tube trailers
or cylinders or by pipeline. In many cases, these suppliers have established delivery infrastructure and customer relationships.





FORM 20-FPage 9


Hydrogenics Corporation


In the commercial production of fuel cell power products, we compete
with a number of companies that currently have fuel cell and fuel cell system development programs. We expect several of these
competitors will be able to deliver competing products to certain markets before we do. While our strategy is the development
of fuel cell and hydrogen generation technologies for sale to end-users, systems integrators, governments and market channel partners,
many of our competitors are developing products specifically for use in particular markets. These competitors may be more successful
in penetrating their specific markets than we are. In addition, an increase in the popularity of fuel cell power in particular
market channels may cause certain of our customers to develop and produce some or all of the fuel cell technologies we are developing.



Competition in the markets for fuel cell power modules and hydrogen
generation equipment is significant and will likely persist and intensify over time. We compete directly and indirectly with a
number of companies that provide products and services that are competitive with all, some or part of our products and related
services. Many of our existing and potential competitors have greater brand name recognition and their products may enjoy greater
initial market acceptance among our potential customers. In addition, many of these competitors have significantly greater financial,
technical, sales, marketing, distribution, service and other resources than we have and may also be better able to adapt quickly
to customers’ changing demands and to changes in technology.



While it is our strategy to continuously improve our products,
if we are unable to do so, and if we cannot generate effective responses to our competitors’ brand power, product innovations,
pricing strategies, marketing campaigns, partnerships, distribution channels, service networks and other initiatives, our ability
to gain market share or market acceptance for our products could be limited, our revenues and our profit margins may suffer, and
we may never become profitable.



We face competition for fuel cell power products from developers and manufacturers
of traditional technologies and other alternative technologies.



Each of our target markets is currently served by manufacturers
with existing customers and suppliers. These manufacturers use proven and widely accepted traditional technologies such as internal
combustion engines and turbines, as well as coal, oil, gas and nuclear powered generators. Additionally, there are competitors
working on developing technologies that use other types of fuel cells, energy storage technologies, hydrogen generation technologies
and other alternative power technologies, advanced batteries and hybrid battery/internal combustion engines, which may compete
for our target customers. Given that PEM fuel cells and electrolyzers have the potential to replace these existing power sources,
competition in our target markets will also come from these traditional power technologies, from improvements to traditional power
technologies and from new alternative power technologies, including other types of fuel cells.



If we are unable to continuously improve our products and if we
cannot generate effective responses to incumbent and/or alternative energy competitors’ brand power, product innovations,
pricing strategies, marketing campaigns, partnerships, distribution channels, service networks and other initiatives, our ability
to gain market share or market acceptance for our products could be limited, our revenues and our profit margins may suffer, and
we may never become profitable.



Our strategy for the sale of fuel cell power products depends
on developing partnerships with OEMs, governments, systems integrators, suppliers and other market channel partners who will incorporate
our products into theirs.



Other than in a few specific markets, our strategy is to develop
and manufacture products and systems for sale to OEMs, governments, systems integrators, suppliers and other market channel partners
that have mature sales and distribution networks for their products. Our success may be heavily dependent on our ability to establish
and maintain relationships with these partners who will integrate our fuel cell products into their products and on our ability
to find partners who are willing to assume some of the research and development costs and risks associated with our technologies
and products. Our performance may, as a result, depend on the success of other companies, and there are no assurances of their
success. We can offer no guarantee that OEMs, governments, systems integrators, suppliers and other market channel partners will
manufacture appropriate products or, if they do manufacture such products, that they will choose to use our products as components.
The end products into which our fuel cell technology will be incorporated will be complex appliances comprising many components
and any problems encountered by such third parties in designing, manufacturing or marketing their products, whether or not related
to the incorporation of our fuel cell products, could delay sales of our products and adversely affect our financial results.
Our ability to sell our products to the OEM markets depends to a significant extent on our partners’ worldwide sales and
distribution networks and service capabilities. In addition, some of our agreements with customers and partners require us to
provide shared intellectual property rights in certain situations, and there can be no assurance that any future relationships
we enter into will not require us to share some of our intellectual property. Any change in the fuel cell, hydrogen or alternative
fuel strategies of one of our partners could have a material adverse effect on our business and our future prospects.





FORM 20-FPage 10


Hydrogenics Corporation


In addition, in some cases, our relationships are governed by a
non-binding memorandum of understanding or a letter of intent. We cannot provide the assurance that we will be able to successfully
negotiate and execute definitive agreements with any of these partners, and failure to do so may effectively terminate the relevant
relationship. We also have relationships with third party distributors who also indirectly compete with us. For example, we have
targeted industrial gas suppliers as distributors of our hydrogen generators. Because industrial gas suppliers currently sell
hydrogen in delivered form, adoption by their customers of our hydrogen generation products could cause them to experience declining
demand for delivered hydrogen. For this reason, industrial gas suppliers may be reluctant to purchase our hydrogen generators.
In addition, our third party distributors may require us to provide volume price discounts and other allowances, or customize
our products, either of which could reduce the potential profitability of these relationships.



We are dependent on third party suppliers for key materials
and components for our products. If these suppliers become unable or unwilling to provide us with sufficient materials and components
on a timely and cost-effective basis, we may be unable to manufacture our products cost-effectively or at all, and our revenues
and gross margins would suffer.



We rely on third party suppliers to provide key materials and components
for our fuel cell power products and hydrogen generation products. While we undertake due diligence before engaging with a supplier,
a supplier’s failure to provide materials or components in a timely manner, or to provide materials and components that
meet our quality, quantity or cost requirements, or our inability to obtain substitute sources for these materials and components
in a timely manner or on terms acceptable to us, may harm our ability to manufacture our products cost-effectively or at all,
and our revenues and gross margins might suffer. To the extent we are unable to develop and patent our own technology and manufacturing
processes and, to the extent that the processes our suppliers use to manufacture materials and components are proprietary, we
may be unable to obtain comparable materials or components from alternative suppliers and that could adversely affect our ability
to produce commercially viable products.



We may not be able to manage successfully the anticipated expansion of our operations.



The uneven pace of our anticipated expansion in facilities, staff
and operations may place serious demands on our managerial, technical, financial and other resources. We may be required to make
significant investments in our engineering and logistics systems and our financial and management information systems, as well
as retaining, motivating and effectively managing our employees. While we continually monitor our sales outlook and adjust our
business plans as necessary, our management skills and systems currently in place may not enable us to implement our strategy
or to attract and retain skilled management, engineering and production personnel. Our failure to manage our growth effectively
or to implement our strategy in a timely manner may significantly harm our ability to achieve profitability.



If we do not properly manage foreign sales and operations, our business could suffer.



We expect that a substantial portion of our future revenues will
continue to be derived from foreign sales. Our international activities may be subject to inherent risks, including regulatory
limitations restricting or prohibiting the provision of our products and/or services, unexpected changes in regulatory requirements,
tariffs, customs, duties and other trade barriers, difficulties in staffing and managing foreign operations, longer payment cycles,
problems in collecting accounts receivable, fluctuations in currency exchange rates, foreign exchange controls that restrict or
prohibit repatriation of funds, technology export and/or import restrictions or prohibitions, delays from customs brokers or government
agencies, seasonal reductions in business activity and potentially adverse tax consequences resulting from operating in multiple
jurisdictions. While we aim to employ experienced knowledgeable management in our foreign operations, if we do not properly manage
foreign operations, our business could suffer.





FORM 20-FPage 11


Hydrogenics Corporation


We will need to recruit, train and retain key management and other qualified personnel
to successfully expand our business.



Our future success will depend in large part on our ability to
recruit and retain experienced research and development, engineering, manufacturing, operating, sales and marketing, customer
service and management personnel. We compete in emerging markets and there are a limited number of people with the appropriate
combination of skills needed to provide the services our customers require. In the past, we have experienced difficulty in recruiting
qualified personnel and we expect to experience continued difficulties in personnel recruiting. If we do not attract such personnel,
we may not be able to expand our business. In addition, new employees generally require substantial training, which requires significant
resources and management attention. Our success also depends on retaining our key management, research, product development, engineering,
marketing and manufacturing personnel. Even if we invest significant resources to recruit, train and retain qualified personnel,
we may not be successful in our efforts.



We may acquire technologies or companies in the future, and these acquisitions could
disrupt our business and dilute our shareholders’ interests.



We may acquire additional technologies or other companies in the
future and we cannot provide assurances that we will be able to successfully integrate their operations or that the cost savings
we anticipate will be fully realized. Entering into an acquisition or investment entails many risks, any of which could materially
harm our business, including: diversion of management’s attention from other business concerns; failure to effectively assimilate
the acquired technology, employees or other assets into our business; the loss of key employees from either our current business
or the acquired business; and the assumption of significant liabilities of the acquired company.



If we complete additional acquisitions, we may dilute the ownership
of current shareholders. In addition, achieving the expected returns and cost savings from our past and future acquisitions will
depend in part on our ability to integrate the products and services, technologies, research and development programs, operations,
sales and marketing functions, finance, accounting and administrative functions, and other personnel of these businesses into
our business in an efficient and effective manner. We cannot ensure we will be able to do so or that the acquired businesses will
perform at anticipated levels. If we are unable to successfully integrate acquired businesses, our anticipated revenues may be
lower and our operational costs may be higher.



We have no experience manufacturing our fuel cell products on
a large scale basis and if we do not develop adequate manufacturing processes and capabilities to do so in a timely manner, we
will be unable to achieve our growth and profitability objectives.



We have manufactured most of our products in our Power Systems
segment for prototypes and initial sales, and we have limited experience manufacturing products on a larger scale. We have experience
manufacturing products on a larger scale in our Generation segment. In order to produce certain of our products at affordable
prices, we will have to manufacture a large volume of such products. While several members of our senior management team have
significant experience in developing high volume manufacturing strategies for new products and while we have developed plans for
efficient, low-cost manufacturing capabilities and processes that will enable us to meet the quality, price, engineering, design
and production standards or production volumes required to successfully mass market such products, we do not know whether these
plans will be implemented such that they will satisfy the requirements of our customers and the market for the Power Systems segment.
Our failure to develop these manufacturing processes and capabilities in a timely manner could prevent us from achieving our growth
and profitability objectives.



Risk Factors Related to Our Products and Technology



We may never complete the development of commercially viable
fuel cell power products and/or commercially viable hydrogen generation systems for new hydrogen energy applications, and if we
fail to do so, we will not be able to meet our business and growth objectives.





FORM 20-FPage 12


Hydrogenics Corporation


We have made commercial sales of fuel cell power modules, integrated
fuel cell systems, hydrogen refueling stations and hydrogen energy storage systems for a relatively short period of time. Because
both our business and industry are still in the developmental stage, we do not know when or whether we will successfully complete
research and development of commercially viable fuel cell power products and commercially viable hydrogen generation equipment
for new hydrogen energy applications. If we do not complete the development of such commercially viable products, we will be unable
to meet our business and growth objectives. We expect to face unforeseen challenges, expenses and difficulties as a developing
company seeking to design, develop and manufacture new products in each of our targeted markets. Our future success also depends
on our ability to effectively market fuel cell products and hydrogen generation products once developed.



We must lower the cost of our fuel cell and hydrogen generation
products and demonstrate their reliability or consumers will be unlikely to purchase our products and we will therefore not generate
sufficient revenues to achieve and sustain profitability.



While we have significantly reduced the cost of our technology
and products in the past few years and we are continuously seeking and implementing additional product and manufacturing cost
reductions, fuel cells currently cost more than many established competing technologies, such as internal combustion engines and
batteries. The prices of fuel cell and hydrogen generation products are dependent largely on material and manufacturing costs.
We cannot guarantee we will be able to lower these costs to a level where we will be able to produce a competitive product or
that any product we produce using lower cost materials and manufacturing processes will not suffer from lower performance, reliability
and longevity. If we are unable to produce fuel cell and hydrogen generation products that are competitive with other technologies
in terms of price, performance, reliability and longevity, consumers will be unlikely to buy our fuel cell and hydrogen generation
products. Accordingly, we would not be able to generate sufficient revenues with positive gross margins to achieve and sustain
profitability.



Any failures or delays in field tests of our products could
negatively affect our customer relationships and increase our manufacturing costs.



We regularly field test our products and we plan to conduct additional
field tests in the future. While we dynamically manage the execution and results of these tests, any failures or delays in our
field tests could harm our competitive position and impair our ability to sell our products. Our field tests may encounter problems
and delays for a number of reasons, including the failure of our technology, the failure of the technology of others, the failure
to combine these technologies properly, operator error and the failure to maintain and service the test prototypes properly. Many
of these potential problems and delays are beyond our control. In addition, field test programs, by their nature, may involve
delays relating to product roll-out and modifications to product design, as well as third party involvement. Any problem or perceived
problem with our field tests, whether it originates from our technology, our design, or third parties, could damage our reputation
and the reputation of our products and limit our sales. Such field test failures may negatively affect our relationships with
customers, require us to extend field testing longer than anticipated before undertaking commercial sales and require us to develop
further our technology to account for such failures prior to the field tests, thereby increasing our manufacturing costs.



The components of our products may contain defects or errors
that could negatively affect our customer relationships and increase our development, service and warranty costs.



Our products are complex and must meet the stringent technical
requirements of our customers. The software and other components used in our fuel cell and hydrogen generation products may contain
undetected defects or errors, especially when first introduced, which could result in the failure of our products to perform,
damage to our reputation, delayed or lost revenue, product returns, diverted development resources and increased development,
service and warranty costs.



Rapid technological advances or the adoption of new codes and
standards could impair our ability to deliver our products in a timely manner and, as a result, our revenues would suffer.



While we actively and continuously monitor the developing markets
and regulations in markets for our products, our success depends in large part on our ability to keep our products current and
compatible with evolving technologies, codes and standards. Unexpected changes in technology or in codes and standards could disrupt
the development of our products and prevent us from meeting deadlines for the delivery of products. If we are unable to keep pace
with technological advancements and adapt our products to new codes and standards in a timely manner, our products may become
uncompetitive or obsolete and our revenues would suffer.





FORM 20-FPage 13


Hydrogenics Corporation


We depend on intellectual property and our failure to protect
that intellectual property could adversely affect our future growth and success.



While we proactively and regularly review our intellectual property
protection strategy, failure to protect our intellectual property rights may reduce our ability to prevent others from using our
technology. We rely on a combination of patent, trade secret, trademark and copyright laws to protect our intellectual property.
Some of our intellectual property is currently not covered by any patent or patent application. Patent protection is subject to
complex factual and legal criteria that may give rise to uncertainty as to the validity, scope and enforceability of a particular
patent. Accordingly, we cannot be assured that: any of the United States, Canadian or other patents owned by us or third party
patents licensed to us will not be invalidated, circumvented, challenged, rendered unenforceable, or licensed to others; or any
of our pending or future patent applications will be issued with the breadth of protection that we seek, if at all.



In addition, effective patent, trademark, copyright and trade secret
protection may be unavailable, limited, not applied for, or unenforceable in foreign countries.



Furthermore, although we typically retain sole ownership of the
intellectual property we develop, in certain circumstances we provide for shared intellectual property rights.



We have also entered into agreements with other customers and partners
that involve shared intellectual property rights. Any developments made under these agreements will be available for future commercial
use by all parties to the agreement.



We also seek to protect our proprietary intellectual property through
contracts including, when possible, confidentiality agreements and inventors’ rights agreements with our customers and employees.
We cannot be sure that the parties who enter into such agreements with us will not breach them, that we will have adequate remedies
for any breach or that such persons or institutions will not assert rights to intellectual property arising out of these relationships.
If necessary or desirable, we may seek licences under the patents or other intellectual property rights of others. However, we
cannot be sure we will obtain such licences or that the terms of any offered licences will be acceptable to us. Our failure to
obtain a licence from a third party for intellectual property we use in the future could cause us to incur substantial liabilities
and to suspend the manufacture and shipment of products or our use of processes that exploit such intellectual property.



Our involvement in intellectual property litigation could negatively
affect our business.



Our future success and competitive position depend in part on our
ability to obtain or maintain the proprietary intellectual property used in our principal products. In order to establish and
maintain such a competitive position, we may need to prosecute claims against others who we believe are infringing our rights
and defend claims brought by others who believe we are infringing their rights. Our involvement in intellectual property litigation
could result in significant expense to us, adversely affect the sale of any products involved or the use or licensing of related
intellectual property and divert the efforts of our technical and management personnel from their principal responsibilities,
regardless of whether such litigation is resolved in our favour. If we are found to be infringing on the intellectual property
rights of others, we may, among other things, be required to: pay substantial damages; cease the development, manufacture, use,
sale or importation of products that infringe on such intellectual property rights; discontinue processes incorporating the infringing
technology; expend significant resources to develop or acquire non-infringing intellectual property; or obtain licences to the
relevant intellectual property.



We cannot offer any assurance we will prevail in any such intellectual
property litigation or, if we were not to prevail in such litigation that licences to the intellectual property we are found to
be infringing on would be available on commercially reasonable terms, if at all. The cost of intellectual property litigation
as well as the damages, licensing fees or royalties that we might be required to pay could have a material adverse effect on our
business and financial results.





FORM 20-FPage 14


Hydrogenics Corporation


Our products use flammable fuels that are inherently dangerous
substances and could subject us to product liabilities.



While it is a key focus of management to develop and manufacture
safe and reliable products, our financial results could be materially impacted by accidents involving either our products or those
of other fuel cell manufacturers, either because we face claims for damages or because of the potential negative impact on demand
for fuel cell products. Our products use hydrogen, which	 is typically generated from gaseous and liquid fuels, such as propane,
natural gas or methanol, in a process known as reforming. While our fuel cell products do not use these fuels in a combustion
process, natural gas, propane and other hydrocarbons are flammable fuels that could leak and then combust if ignited by another
source. In addition, certain of our OEM partners and customers may experience significant product liability claims. As a supplier
of products and systems to these OEMs, we face an inherent business risk of exposure to product liability claims in the event
our products, or the equipment into which our products are incorporated, malfunction and result in personal injury or death. We
may be named in product liability claims even if there is no evidence our systems or components caused the accidents. Product
liability claims could result in significant losses from expenses incurred in defending claims or the award of damages. Since
our products have not yet gained widespread market acceptance, any accidents involving our systems, those of other fuel cell products
or those used to produce hydrogen could materially impede acceptance of our products. In addition, although our management believes
our liability coverage is currently adequate to cover these risks, we may be held responsible for damages beyond the scope of
our insurance coverage.





Risk Factors Related to Ownership of Our Common Shares



If at any time we are classified as a passive foreign investment
company under United State tax laws, our US shareholders may be subject to adverse tax consequences.



We would be classified as a passive foreign investment company
(“PFIC”), for US federal income tax purposes, in any taxable year in which, after applying relevant look-through rules
with respect to the income and assets of our subsidiaries, either at least 75% of our gross income is ‘‘passive income,’’
or on average at least 50% of the gross value of our assets is attributable to assets that produce passive income or are held
for the production of passive income.



Based on our structure, and the composition of our income and assets,
we do not believe we were a PFIC for the taxable year ended December 31, 2016 or the prior taxable year. However, there can be
no assurance the Internal Revenue Service will not successfully challenge our position or that we will not become a PFIC in a
future taxable year, as PFIC status is retested each year and depends on our assets and income in that year. If we are classified
as a PFIC at any time that a US shareholder holds our common shares, such shareholder may be subject to an increased US federal
income tax liability and a special interest charge in respect of a gain recognized on the sale or other disposition of our common
shares and upon the receipt of certain ‘‘excess distributions’’ (as defined in the United States Internal
Revenue Code of 1986, as amended).



US shareholders should consult their own tax advisors concerning
the US federal income tax consequences of holding our common shares if we were a PFIC in any taxable year and its potential application
to their particular situation.



If we fail to maintain the requirements for continued listing
on Nasdaq, our common shares could be delisted from trading on Nasdaq, which would materially adversely affect the liquidity of
our common shares, the price of our common shares, and our ability to raise additional capital.



Failure to meet the applicable continued listing requirements of
Nasdaq could result in our common shares being delisted from Nasdaq. In the past we have been unable to meet the Nasdaq requirements
for continued listing on the Nasdaq Global Market for certain periods of time, and though we have regained compliance of such
requirements, we may not be able to meet the requirements in the future.



If we fail to satisfy Nasdaq’s continued listing requirements,
our common shares could be delisted from Nasdaq, in which case we may transfer to the Nasdaq Capital Market, which generally has
lower financial requirements for initial listing or, if we fail to meet its listing requirements, the over-the-counter bulletin
board. However, there can be no assurance that our common shares will be eligible for trading on any such alternative exchanges
or markets in the United States. If we are delisted from Nasdaq, it could materially reduce the liquidity of our common shares,
lower the price of our common shares, and impair our ability to raise financing.



Future sales of common shares by our principal shareholders
could cause our share price to fall and reduce the value of a shareholder’s investment.



If our principal shareholders, including our founders, sell substantial
amounts of their common shares in the public market, the market price of our common shares could fall and the value of a shareholder’s
investment could be reduced. The perception among investors that these sales may occur could have a similar effect. Share price
declines may be exaggerated if the low trading volume that our common shares have experienced to date continues. These factors
could also make it more difficult for us to raise additional funds through future offerings of our common shares or other securities.





FORM 20-FPage 15


Hydrogenics Corporation


Our articles of incorporation authorize us to issue an unlimited
number of common and preferred shares. Significant issuances of common or preferred shares could dilute the share ownership of
our shareholders, deter or delay a takeover of us that our shareholders may consider beneficial or depress the trading price of
our common shares.



Our articles of incorporation permit us to issue an unlimited number
of common and preferred shares. If we were to issue a significant number of common shares, it would reduce the relative voting
power of previously outstanding shares. Such future issuances could be at prices less than our shareholders paid for their common
shares. If we were to issue a significant number of common or preferred shares, these issuances could also deter or delay an attempted
acquisition of us that a shareholder may consider beneficial, particularly, in the event that we issue preferred shares with special
voting or dividend rights. While NASDAQ and Toronto Stock Exchange rules may require us to obtain shareholder approval for significant
issuances, we would not be subject to these requirements if we ceased, voluntarily or otherwise, to be listed on NASDAQ and the
Toronto Stock Exchange. Significant issuances of our common or preferred shares, or the perception that such issuances could occur,
could cause the trading price of our common shares to drop.



US investors may not be able to enforce US civil liability judgments
against us or our directors and officers.



We are organized under the laws of Canada. A majority of our directors
and officers are residents of Canada and all or a substantial portion of their assets and substantially all of our assets are
located outside of the United States. As a result, it may be difficult for US holders of our common shares to effect service of
process on these persons within the United States or to realize in the United States on judgments rendered against them. In addition,
a shareholder should not assume that the courts of Canada: (i) would enforce the judgments of US courts obtained in actions against
us or such persons predicated on the civil liability provisions of US federal securities laws or other laws of the United States;
or (ii) would enforce, in original actions, claims against us or such persons predicated on the US federal securities laws.



Our share price is volatile and we may continue to experience
significant share price and volume fluctuations.



Since our common shares were initially offered to the public in
November 2000, the stock markets, particularly in the technology and alternative energy sectors, and our share price have experienced
significant price and volume fluctuations. Our common shares may continue to experience volatility for reasons unrelated to our
own operating performance, including: performance of other companies in the fuel cell or alternative energy business; news announcements,
securities analysts’ reports and recommendations and other developments with respect to our industry or our competitors;
or changes in general economic conditions.



Our issuance of warrants, options, RSUs and PSUs to investors
and employees may have a negative effect on the trading prices of our common stock as well as a dilutive effect.



We have issued and may continue to issue warrants, options, RSUs
and PSUs at the current market price. As of December 31, 2016, we had outstanding options exercisable for 628,636 shares of common
stock at a weighted average exercise price of $7.97. As of December 31, 2016, we had outstanding warrants exercisable for 450,575
shares of common stock at a weighted average exercise price of $9.07. As of December 31, 2016, we had outstanding RSUs exercisable,
when vested, for 52,483 shares of common stock at no cost. As of December 31, 2016, we had outstanding PSUs exercisable, when
vested, for 195,569 shares of common stock at no cost.





FORM 20-FPage 16


Hydrogenics Corporation


|ITEM 4. |  | INFORMATION ON THE COMPANY
|------- |  | --------------------------



HISTORY AND DEVELOPMENT OF HYDROGENICS CORPORATION



We were incorporated on June 10, 2009 under the
Canada Business Corporations Act, under the name “7188501 Canada Inc.” We changed our name to “Hydrogenics Corporation-Corporation
Hydrogenique” on October 27, 2009 in connection with the transaction involving Algonquin Power Income Fund (“APIF”),
as described further below under “APIF Transaction.”



Old Hydrogenics was founded in 1988 under the
name “Traduction Militech Translation Inc.” It subsequently changed its name to “Société Hydrogenique
Incorporée-Hydrogenics Corporation Incorporated”. From 1990 to August 1995, Société Hydrogenique
Incorporée-Hydrogenics Corporation Incorporated did not actively carry on business. In August 1995, we commenced our
fuel cell technology development business, and in 2000, changed our name to Hydrogenics Corporation - Corporation Hydrogenique.
Until October 27, 2009, we were a wholly owned subsidiary of Old Hydrogenics.



We are a globally recognized developer and provider of hydrogen
generation and fuel cell products. We conduct our business through the following business units: (i) OnSite Generation, which
focuses on hydrogen generation products for renewable energy, industrial and transportation customers; and (ii) Power Systems,
which focuses on fuel cell products for original equipment manufacturers, or OEMs, systems integrators and end users for stationary
applications, including backup power, and motive applications, such as forklift trucks. In November 2007, we announced we
were exiting the fuel cell test products, design, development and manufacturing business that was conducted through our test systems
business unit (“Test Systems”).



Our business units are supported by a corporate services group
providing finance, insurance, investor relations, communications, treasury, human resources, strategic planning, compliance, and
other administrative services.



Our principal executive offices are located at 220 Admiral Boulevard,
Mississauga, Ontario, Canada L5T 2N6. Our telephone number is (905) 361-3660. Our agent for service in the United States for any
actions relating to our common shares is CT Corporation System, 111 Eighth Avenue, New York, New York 10011, (212) 894-8400.



Capital expenditures for the year ended December
31, 2016 were $3.0 million, compared with $2.0 million and $0.9 million for the years ended December 31, 2015 and 2014, respectively,
and consisted of expenditures related primarily to the Ontario Canada, IESO 2 MW Power-to-Gas storage project which will be operational
in 2017, as well as expenditures on cost-reducing production equipment. We expect capital expenditure plans for 2017 and subsequent
years to result in further investment in property, plant and equipment as we continue our manufacturing and development initiatives.
Our current budget for 2017 includes a capital budget of $0.6 million to purchase and manufacture testing and other equipment,
primarily for our research and development programs but also in support of ongoing operational needs. We expect that more than
half of our investments will be in Canada. Our capital requirements will be affected by many factors, including the success of
our current product offerings, the ability to enhance our current products and our ability to develop and introduce new products
that keep pace with technological developments in the marketplace.



As at December 31, 2016 we had cash and cash-equivalents
and restricted cash of approximately $11.3 million.



There are currently no public takeover offers
by third parties in respect of the Company’s shares.



APIF Transaction



On June 11, 2009, we, Old Hydrogenics, the Board of Trustees of
APIF and APIF’s manager, Algonquin Power Management Inc., agreed on the terms of a series of transactions (collectively,
the “APIF Transaction”) and agreements, pursuant to which Old Hydrogenics agreed to transfer its entire business and
operations to us, including all assets, liabilities, directors, management and employees, but excluding its tax attributes. Concurrently,
the APIF Transaction enabled unitholders of APIF to continue to hold their interest in APIF as shareholders of Old Hydrogenics,
which was renamed Algonquin Power & Utilities Corp. (“APUC”), a publicly traded Canadian corporation. APUC has
the ability to make efficient use of our accumulated tax attributes in the continued execution of APIF’s business plans.
Under the APIF Transaction, our shareholders had their common shares in the capital of Old Hydrogenics redeemed for our common
shares on a one-for-one basis. At the same time, APIF unitholders exchanged their units for APUC common shares.





FORM 20-FPage 17


Hydrogenics Corporation


As a result of completing the APIF Transaction on October 27, 2009,
unitholders of APIF did not retain any interest in the business of the Corporation nor did the Corporation’s shareholders
retain any interest in the business of APIF. We have continued to carry on the hydrogen generation and fuel cell business as a
public entity with all of the assets (including the intellectual property), except for certain tax assets, of our predecessor
prior to the APIF Transaction.



BUSINESS OVERVIEW



Hydrogenics, together with its subsidiaries, is a globally recognized
leader in the design, development and manufacture of hydrogen generation, energy storage and fuel cell products based on water
electrolysis technology and proton exchange membrane (“PEM”), technology. Hydrogenics’ mission is to provide
safe, secure, sustainable and emission free energy as a leading global provider of clean energy solutions based on hydrogen. We
maintain operations in Belgium, Canada and Germany with satellite offices in the United States and branch offices in Russia and
Indonesia.



Our OnSite Generation business segment is primarily based in Oevel,
Belgium and develops products for industrial gas, hydrogen fueling and renewable energy storage markets. For the year ended December
31, 2016, our OnSite Generation business reported revenues of $17.5 million and, at December 31, 2016, had 80 full-time employees.



Our Power Systems business segment is primarily based in Mississauga,
Canada, with a satellite facility in Gladbeck, Germany, and develops products for energy storage, motive power and stationary
applications. For the year ended December 31, 2016 our Power Systems business reported revenues of $11.5 million and, at December
31, 2016 had 85	 full-time employees.



Where applicable, corporate and other activities
are reported separately as Corporate and Other. This is the provision of corporate services and administrative support. At December
31, 2016, our Corporate and Other activities had five full-time employees.



OnSite Generation



Our OnSite Generation business segment, is based on water electrolysis
technology which involves the decomposition of water into oxygen (O2) and hydrogen gas (H2) by passing an electric current through
a liquid electrolyte or a polymer electrolyte membrane. The resultant hydrogen gas is then captured and used for industrial gas
applications, hydrogen fueling applications, and is used to store renewable and surplus energy in the form of hydrogen gas. Our
HySTAT® and HyLYZER® branded electrolyzer products are based on 60 years of hydrogen experience, meet international standards,
such as ASME, CE, Rostechnadzor and UL, and are certified ISO 9001 from design to delivery. We configure our HySTAT® products
for both indoor and outdoor applications and tailor our products to accommodate various hydrogen gas requirements.



Historically the demand for onsite generation of hydrogen gas has
been driven by relatively modest market applications for industrial hydrogen. A typical unit for these applications would generate
20 to 60 normal cubic meters of hydrogen and consume 100 to 300 kilowatt (kW) of electrical energy. Recently we have seen several
large scale applications which would consume 10 to 100 megawatts (“MW) of power, which is 100 to 300 times larger than a
typical industrial unit to date. Today several third party studies and internal work by lead customers such as E.ON and Enbridge
suggest substantial long term opportunity for “power to gas”, an application for energy conversion and storage. The
ongoing commercialization of these applications will coincide with changes to legal and regulatory frameworks in countries that
recognize the commercial importance of energy storage as a key factor in energy management and reducing a carbon footprint for
electricity generation. In addition to Power-to-Gas, very large scale industrial applications are also appearing such as the de-tritiation
of contaminated waste water at nuclear reactor sites. In larger applications, the use of PEM electrolysis technology results in
highly efficient energy dense applications. Our 1.5MW PEM single stack electrolyzer is the most energy dense unit in the market
today and is ideally suited for large scale energy storage applications.





FORM 20-FPage 18


Hydrogenics Corporation


Hydrogenics is one of the leaders in Power-to-Gas, an innovative
energy conversion and storage solution using electrolysis. Power-to-Gas is the three-step process of integrating renewable sources
of generation by load-following, converting the surplus electricity to hydrogen or renewable gas, and leveraging the existing
natural gas infrastructure for seasonal storage. An electrolyzer provides the rapid, dynamic response to the Independent System
Operator’s signals to accurately load-follow the intermittent generation pattern of renewable sources such as wind turbines.
The hydrogen produced is injected into the natural gas system and can be intermingled with natural gas and thus additional storage
vessels are not needed. Surplus electricity can be stored for consecutive days or even consecutive weeks without the need to discharge;
it is a seasonal storage capability. This energy storage solution bridges the power grid and the gas grid to unlock new options.
It enhances the flexibility of managing the power grid and provides the means to capitalize on the vast potential of alternative
sources of generation to produce a local source of renewable gas to de-carbonize the gas system. Hydrogenics is working with global
energy utilities such as E.ON and Enbridge to commercialize Power-to-Gas energy storage globally.



We also are promoting electrolysis in hydrogen fueling stations
as possible Power-to-Gas solutions at a distributed storage level. The electrolyzer can be used to generate hydrogen during periods
of surplus energy levels, thus absorbing the excess energy at lower cost to generate hydrogen. This hydrogen is then stored at
site and can be used to fuel hydrogen cars and buses. If the surplus power is generated from renewable energy sources such as
wind and solar, the potential exists for a completely green solution as hydrogen fuel cell vehicles emissions are only water vapor.



Our OnSite Generation products are sold to leading merchant gas
companies, such as Air Liquide and Linde Gas and end-users requiring high purity hydrogen produced on-site for industrial applications.
We also sell and service products for progressive oil and gas companies, requiring hydrogen fueling stations for transportation
applications. Recently, the rollout of fuel cell motor vehicles and the increase in fuel cell buses and other mass transit applications
has resulted in an increase in orders and interest for fueling stations in Europe, California and elsewhere. This shift has signaled
what we believe could be a major increase in the size of this market.



The business objectives for our OnSite Generation group are to:
(i) continue to pursue opportunities for customers to convert otherwise wasted renewable and other excess energy, such as wind,
solar or excess baseload energy, into hydrogen; (ii) further expand into traditional markets, such as Eastern Europe (including
Russia), Asia and the Middle East; (iii) grow our fueling station business; (iv) continue to expand opportunities in Power-to-Gas
in Europe, North America and elsewhere; (v) further increase the gross margins of existing product lines by improving our procurement
and manufacturing processes; (vi) reduce the cost of ownership of our products through design and technology improvement; and
(vii) further increase the reliability and durability of our products to exceed the expectations of our customers and improve
the performance of our applications.



Our OnSite Generation business competes with merchant gas companies,
such as Air Liquide and Linde Gas which, in addition to being customers, operate large scale centralized hydrogen production plants
and are providers of alternative on-site hydrogen generation products using steam methane reforming technology or other electrolysis
technology. We compete on performance, reliability and cost and believe we are well positioned in situations where there is a
need for high purity hydrogen manufactured on-site.



Power Systems



Our Power Systems business segment is based on PEM fuel cell technology,
which transforms chemical energy liberated during the electrochemical reaction of hydrogen and oxygen into electrical energy.
Our HyPM® branded fuel cell products are based on our extensive track record of on-bench testing and real-time deployments
across a wide range of stationary and motive power profiles. We configure our HyPM® products into multiple electrical power
outputs ranging from three kW to one MW with ease of integration, high reliability and operating efficiency, delivered from a
highly compact area.



Our target markets include stationary power applications
(including primary and back-up power) and motive power applications, such as trains, buses, trucks and utility vehicles and backup
power applications. The military, historically an early technology adopter, is a specialized market for our innovative fuel cell
based products. Our target addressable markets (stationary power and mobility markets) are estimated to be in excess of $2 billion
specifically related to hydrogen power technology.





FORM 20-FPage 19


Hydrogenics Corporation


Our Power Systems products are sold to leading Original Equipment
Manufacturers (“OEMs”), to provide backup power applications for telecom installations and vehicle and other integrators
for motive power, direct current and alternating current backup. Additionally, our products are sold for prototype field tests
intended to be direct replacements for traditional lead-acid battery packs for motive applications. We also sell our power systems
in stationary power applications such as that employed by our Kolon-Hydrogenics joint venture in South Korea. Finally, we also
sell our Power Systems products to military, aerospace and other early adopters of emerging technologies.



The business objectives for our Power Systems group are to: (i)
offer a standard fuel cell platform for many markets, thereby enabling manufacturing efficiencies and reduced development spending;
(ii) achieve further market penetration in the stationary power and motive power markets by tailoring our HyPM® fuel cell
products to meet market specific requirements, including price, performance and features; (iii) reduce product cost; (iv) invest
in sales and market development activities in the backup power and motive power markets; (v) continue to target early adopters
of emerging technologies as a bridge to future commercial markets; and (vi) secure the requisite people and processes to align
our anticipated growth plans with our resources and capabilities.



Our Power Systems business competes with several well-established
battery and internal combustion engine companies in addition to several other fuel cell companies. We compete on relative price/performance
and design innovation. In the backup power market, we believe our HyPM® systems have an advantage over batteries and internal
combustion engines for customers seeking extended run requirements, by offering more reliable and economical performance. In motive
power markets, we believe our HyPM® products are well positioned against diesel generation and lead-acid batteries by offering
increased productivity and lower operational costs.



There are four types of fuel cells other than PEM fuel cells that
are generally considered to have possible commercial applications, including phosphoric acid fuel cells, molten carbonate fuel
cells, solid oxide fuel cells and alkaline fuel cells. Each of these fuel cell technologies differs in their component materials
and operating characteristics. While all fuel cell types may have potential environmental and efficiency advantages over traditional
power sources, we believe PEM fuel cells can be manufactured less expensively and are more efficient and more practical in small-scale
stationary and motive power applications. Further, most automotive companies have selected PEM technology for fuel cell powered
automobiles. We expect this will help establish concentration around PEM technology and may result in a lower cost, as compared
to the other fuel cell technologies.



Segmented Revenues



(Millions of
US dollars)



|                  |  | 2016 |      |  | 2015 |   |      | 2014 | 
|----------------- |  | ---- | ---- |  | ---- | - | ---- | ---- | 
|OnSite Generation |  | $    | 17.5 |  |      | $ | 23.6 |      | 
|Power Systems     |  |      | 11.5 |  |      |   | 12.3 |      | 
|Total             |  | $    | 29.0 |  |      | $ | 35.9 |      | 



For additional financial information by business segment, see “Note
31 - Segmented Financial Information” to our consolidated financial statements, which can be found on page F-44 of
this form, and is incorporated by reference herein.







FORM 20-FPage 20


Hydrogenics Corporation


Our revenues are segmented by geographic region, as follows:



(Thousands of US dollars)

|                          |  |      |        |  |      |   |        |      | 
|------------------------- |  | ---- | ------ |  | ---- | - | ------ | ---- | 
|Year ended December 31,   |  | 2016 |        |  | 2015 |   |        | 2014 | 
|European Union            |  | $    | 14,377 |  |      | $ | 15,106 |      | 
|Eastern Europe            |  |      | 3,906  |  |      |   | 7,695  |      | 
|North America             |  |      | 2,525  |  |      |   | 6,288  |      | 
|Asia                      |  |      | 6,747  |  |      |   | 4,300  |      | 
|South and Central America |  |      | 693    |  |      |   | 1,051  |      | 
|Africa                    |  |      | 358    |  |      |   | 927    |      | 
|Middle East               |  |      | 288    |  |      |   | 389    |      | 
|Oceania and Caribbean     |  |      | 96     |  |      |   | 108    |      | 
|Total                     |  | $    | 28,990 |  |      | $ | 35,864 |      | 



Our strategy is to develop electrolyzer and fuel cell products
for sale to OEMs, electric utilities, gas utilities, merchant gas companies and end-users requiring highly reliable products offered
at competitive prices. We believe our success will be substantially predicated on the following factors:



Increasing Market Penetration



At December 31, 2016, we had 17 full-time staff employed in sales
functions. Our senior management team is also actively involved in sales initiatives, including maintaining close contact with
our more significant customers. In the year, significant efforts were made to strengthen the sales function including repositioning
of responsibilities to permit dedicated sales leadership, obtaining detailed assessments of markets, and leveraging our strategic
relationships with companies such as Enbridge and Kolon.



2016 saw a focus on several key markets and geographies. In Power
Systems, our growth in the Chinese bus and transportation market began to show results as orders were signed with two of the four
integrators that we had signed agreements with in late 2015. We expect the Chinese market to represent the single largest geographical
growth area in 2017 with government incentives for fuel cell buses creating opportunity in this key market. Also on the mobility
front, work continued on our ten year contract to develop and supply hydrogen fuel cell propulsion systems for Alstom Transport
for passenger rail in Europe.



Additionally, we have developed or maintained relationships with
third parties we believe are well positioned in our relevant markets to identify new opportunities for our products. In the industrial
gas market, these third parties include leading merchant gas companies, such as Air Liquide and Linde Gas. In the energy storage
market, we are leveraging our strategic relationship with Enbridge. Construction on our Toronto area energy storage facility (in
partnership with Enbridge) is ongoing with commercial operation expected mid-2017.



We are also noting increased success in partnering with companies
to develop hydrogen fueling stations using our electrolysis technology as automobile manufacturers begin to roll out hydrogen
fuel cell vehicles at commercial production levels (principally for the European, Asian and California markets).



Future Markets



Hydrogenics is pioneering Power-to-Gas, an innovative energy conversion
and storage solution using electrolysis. Power-to-Gas is the three-step process of integrating renewable sources of generation
by load-following, converting the surplus electricity to hydrogen or renewable gas, and leveraging the existing natural gas infrastructure
for seasonal storage. An electrolyzer provides the rapid, dynamic response to the Independent System Operator’s signals
to accurately load-follow the intermittent generation pattern of renewable sources such as wind turbines. The hydrogen produced
is injected into the natural gas system and can be intermingled with natural gas and thus additional storage vessels are not needed.
In this way, surplus electricity can be stored for consecutive days or even consecutive weeks without the need to discharge; it
is a seasonal storage capability. This energy storage solution bridges the power grid and the gas grid to unlock new options.
It enhances the flexibility of managing a power grid and provides the means to capitalize on the vast potential of alternative
sources of generation to produce a local source of renewable gas to de-carbonize the gas system. Hydrogenics is working with global
energy utilities such as E.ON and Enbridge to commercialize Power-to-Gas energy storage globally.





FORM 20-FPage 21


Hydrogenics Corporation


We also are promoting electrolysis in hydrogen fueling stations
as possible Power-to-Gas solutions at a distributed storage level.  The electrolyzer can be used to generate hydrogen during
periods of surplus energy levels, thus absorbing the excess energy at lower cost to generate hydrogen.  This hydrogen is
then stored at site and can be used to fuel hydrogen cars and buses.  If the surplus power is generated from renewable energy
sources such as wind and solar, the potential exists for a completely green solution as hydrogen fuel cell vehicles emissions
emit only water vapor.



Finally, we are working with European customers and others to evaluate
using hydrogen electrolyzed from green energy applications (such as wind and solar) to be used as a low carbon input into the
production of gasoline in alignment with recent changes to the European fuel quality directive.



Within our OnSite Generation business segment, we remain focused
on two key areas.  First, reducing the cost of our HySTAT® alkaline electrolyzer and improving its efficiency.
Innovation in the design, elimination of non-value adding components, improved component sourcing and fundamental electrochemical
improvements have all contributed to ongoing cost reduction initiatives in 2016. We also recognize the opportunity for larger
scale energy storage installations and are continuing to develop significantly scaled-up products to better meet this market opportunity. 
Second, we are looking at continuing the rollout of PEM electrolysis, particularly in the area of Power-to-Gas where the PEM technology
provides a more scalable solution than alkaline electrolysis at higher power levels.



Unique applications and products such as our Celerity fuel cell
module for bus applications and our rack mounted stationary fuel cell products for stationary power applications such as Kolon
in South Korea will continue to be a focus area of our Company.



Advancing Our Product Designs



Within our OnSite Generation business segment, we remain focused
on two key areas. First, reducing the cost of our HySTAT® alkaline electrolyzer and improving its efficiency. Innovation
in the design, elimination of non-value adding components, improved component sourcing and fundamental electrochemical improvements
have all contributed to ongoing cost reduction initiatives in 2016 and beyond. We also recognize the opportunity for larger scale
energy storage installations and are continuing to develop significantly scale-up products to better meet this market opportunity.
Second, we are looking at continuing the rollout of PEM electrolysis, particularly in the area of Power-to-Gas where the PEM technology
provides a more scalable solution than alkaline electrolysis at higher power levels.



Within our Power Systems business segment, we spent much of 2016
focusing on further reducing the cost of a fully integrated fuel cell system inclusive of its components. We continue to leverage
our integration capability in taking a standard fuel cell stack and finding multiple cost-effective applications. The result is
a common building block such as our (HD30 30kW fuel cell) being used in multiple applications such as buses, stationary power
and grid stabilization. We have achieved significant cost reduction milestones but will continue to further improve the financial
viability of the product in the marketplace by looking at both scale (increased volume ordering from suppliers) as well as bringing
components of the supply chain in-house to further reduce production cost.



Securing Additional Capital



As at December 31, 2016, we had
$11.3 million of cash, cash equivalents and restricted cash, had $10.4 million of shareholders’ equity and $49.3 million
of assets.



Historically we have not been
profitable and we do not anticipate achieving a consistent level of profitability and positive cash flow from operations for the
next several quarters. The failure to raise sufficient funds necessary to finance future cash requirements could adversely affect
our ability to pursue our strategy and negatively affect our operations in future periods. We are addressing this matter by maintaining
contact with analysts and institutional investors to better articulate our investment merits and are advancing discussions with
possible strategic investors.









FORM 20-FPage 22


Hydrogenics Corporation


On November 7, 2016 we entered into a loan agreement with Export
Development Canada (“EDC”) for a five year, $9 million loan facility. The loan is structured as a five year term loan
with quarterly interest payments calculated at an annual interest rate of U.S. prime plus 10%, declining to U.S. prime plus 7%
(or 5%) if certain annual Adjusted EBITDA thresholds are met. The loan is secured by a second charge over the assets located within
Canada. Commencing March 31, 2017, the loan principal is subject to four quarterly repayments of $250,000, followed by 16 quarterly
repayments of $500,000. There is a prepayment option to prepay a portion of or the entire loan at any time, subsequent to March
31, 2017. As part of the loan consideration, we granted 200,575 share purchase warrants to EDC. Each warrant is exercisable for
one common share of the Company at an exercise price of US$6.85 per common share. The warrants are transferrable and expire on
November 4, 2021.



On December 11, 2015 we entered into an underwriting agreement
with Craig-Hallum Capital Group LLC to issue 2,129,031 common shares of the Company at an issue price of $7.75 per share. On December
16, 2015 the Company issued 2,448,385 shares for gross proceeds of $18,975. Net proceeds after underwriting fees and expenses
were $17,549.



Retaining and Engaging Our Staff



At December 31, 2016, we had
170 full-time employees, the majority of who have been employed by the Corporation for several years and possess strong technical
backgrounds with extensive industry experience. We strive to maintain a high level of employee engagement by compensating at market
rates, and providing interesting and challenging work.



At December 31, 2016, we had 17 full-time staff employed in sales
functions. Our senior management team is also actively involved in sales initiatives, including maintaining close contact with
our more significant customers.



Our Products and Services



Our products include HySTATTM hydrogen generation equipment
in our OnSite Generation business and HyPM® fuel cell products in our Power Systems business.



A summary of our product lines is noted below.



HySTATTM Hydrogen Stations



HySTATTM Hydrogen Stations offer a dependable on-site supply
of hydrogen for a variety of hydrogen applications, including vehicle fuelling, distributed power, and a variety of industrial
processes.  From a selection of versatile modular components, we configure the optimum HySTATTM Hydrogen Station to
precisely meet customer needs for hydrogen generation and storage. We also provide spare parts and service for our entire installed
base.



We currently offer our HySTATTM Hydrogen Station in multiple
configurations depending on the amount of hydrogen required. This product is suitable for producing continuous or batch supplies
of hydrogen typically for industrial processing applications and generates between 10 - 300 normal cubic meters per hour (“Nm3/hr”)
of hydrogen. Multiple standard units can be installed for larger applications with the capability of generating up to 1000 Nm3/hr
of hydrogen.



HyPM® Fuel Cell Products



Our HyPM® fuel cell products provide high performance,
high efficiency electrical power from clean hydrogen fuel.  The HyPM® product is well suited to compete with
existing battery applications by offering longer runtimes and life, at a significantly smaller size and weight. The HyPM®product line also competes with certain diesel power applications by offering clean, quiet operation and higher demand reliability. 
Our products are built on a common platform allowing us to achieve volume purchasing and manufacturing efficiencies.



HyPM® Fuel
Cell Power Modules.  Our HyPM® power module runs on high purity hydrogen and produces DC power in standard
outputs of 2.5, 5, 8, 12, 16, 30, 90, 120 and 200 kW. This product is suitable for a wide range of stationary, mobile and portable
power applications. The HyPM® XR model is targeted at backup power applications and the HyPMHD®
model is targeted at motive power applications with our Celerity® and Celerity Plus® units for bus,
truck and train applications.









FORM 20-FPage 23


Hydrogenics Corporation




HyPXTM Fuel Cell
Power Pack.  Our HyPXTM Power Pack includes a standard HyPM® power module integrated with hydrogen
storage tanks and ultracapacitors that provide higher power in short bursts.  This product has the same form, fit and function
as large battery packs used in devices such as forklift trucks and tow tractors.



Integrated Fuel Cell Systems. 
Our integrated fuel cell systems are built around our HyPM® power modules and used for portable and stationary
applications including portable and auxiliary power units for military applications and direct current or DC backup power system
for cellular tower sites.



Engineering Development Services. 
We also enter into engineering development contracts with certain customers for new or custom products.



Sales and Marketing



Our products are sold worldwide to OEMs, systems integrators and
end-users through a direct sales force and a network of distributors. Our sales method varies depending on the product offering,
market and stage of technology adoption.



Intellectual Property



We protect our intellectual property by means of a combination
of patents, copyrights, trademarks, trade secrets, licenses, non-disclosure agreements and contractual provisions. We generally
enter into non-disclosure and confidentiality agreements with each of our employees, consultants and third parties that have access
to our proprietary technology. We currently hold 128 patents in a variety of jurisdictions and have 48 patent applications pending.
Additionally, we enter into commercial licenses and cross-licenses to access third party intellectual property.



We believe our intellectual property provides us with a strong
competitive advantage and represents a significant barrier to entry into our industry for potential competitors.  As part
of our patent portfolio, we maintain a collection of innovative energy storage patents with broad and exclusive rights concerning
the use of excess electrical power to produce hydrogen from water while simultaneously providing electric grid stabilization services. 
We believe these patents place Hydrogenics in the strongest possible position to build our company over the long-term and will
continue to strengthen our efforts as electric grid operators look to hydrogen as an important strategy for utility-scale energy
storage.



We typically retain sole ownership of intellectual property developed
by us. In certain situations we provide for shared intellectual property rights. We have these rights in perpetuity, including
subsequent improvements to the licensed technology.



Given the relative early stages of our industry, our intellectual
property is and will continue to be important in providing differentiated products to customers.



Customers



Our OnSite Generation products are sold to leading merchant gas
companies, such as Air Liquide and Linde Gas and end-users requiring high purity hydrogen produced on-site for industrial applications.
We also sell and service products for progressive oil and gas companies, requiring hydrogen fueling stations for transportation
applications. Recently, the rollout of fuel cell motor vehicles and the increase in fuel cell buses and other mass transit applications
has resulted in an increase in orders and interest for fueling stations in Europe, California and elsewhere. This shift has signaled
what we believe could be a major increase in the size of this market.



Our Power Systems products are sold to leading Original Equipment
Manufacturers (“OEMs”), to provide backup power applications for telecom installations and vehicle and other integrators
for motive power, direct current and alternating current backup. Additionally, our products are sold for prototype field tests
intended to be direct replacements for traditional lead-acid battery packs for motive applications. We also sell our power systems
in stationary power applications such as that employed by our Kolon-Hydrogenics joint venture in South Korea. Finally, we also
sell our Power Systems products to military, aerospace and other early adopters of emerging technologies.





FORM 20-FPage 24


Hydrogenics Corporation


In 2016, three customers each comprised 28% of our revenue (in
2015, three customers each comprised 25% of our revenue). In 2016, 63% of our revenues was derived from Europe, 23% from Asia,
11% from North and South America, and the remaining 3% were derived from other foreign jurisdictions (in 2015, these numbers were
64%, 12%, 18% and 6%, respectively). Accordingly, we have mitigated risk to any single market or adoption rate by diversifying
our product portfolio across the markets in which we operate.



We have entered into agreements with several customers to pursue
commercial opportunities, which we view as important to our success. Our key customer agreements are summarized below.



Leading Global Industrial
Gas Companies. We have previously established preferred supplier agreements with Air Liquide S.A., Air Products and Chemicals,
Inc., and Linde A.G., three of the leading global industrial gas companies. Typically, these agreements provide that for industrial
applications we will be the preferred supplier of on-site, electrolysis-based hydrogen generators to the applicable industrial
gas company. We believe these relationships represent valuable sales channels, while providing validation of our technology from
highly credible partners.



Enbridge. In April 2012,
we entered into a joint development agreement with Enbridge, the owner and operator of Canada's largest natural gas distribution
company, various North American midstream gas assets, and a leader in clean energy solutions, to jointly develop utility scale
energy storage in North America.



OEM. In October 2012,
we entered into a multi-year joint cooperation agreement with an OEM. In conjunction with the signing of the cooperation agreement,
we were awarded a $36 million contract for the supply of propulsion system equipment including integrated fuel cell power systems,
power electronic converters, associated hardware and propulsion system software. The contract includes additional equipment commitments
of $13 million as well as optional equipment and services totaling another $43 million over a 10 year period. These options will
be triggered as required for production, spare parts, warranty, and service requirements



CommScope. In August 2010,
we entered into a strategic alliance with CommScope, a global leader in infrastructure solutions for communications networks,
that calls for the development and distribution of specialized fuel cell power systems and includes an equity investment in Hydrogenics.
Under the terms of the agreement, CommScope and Hydrogenics have jointly developed next-generation power modules for telecom-related
backup power applications that are being incorporated by CommScope in its products sold to customers worldwide.





Kolon Water and Energy,In
June of 2014, we entered into a joint venture (Kolon-Hydrogenics) to provide stationary base load power systems with a partner
for the Korean market. A 1MW fuel cell power plant was delivered to a refinery site in 2015 and went into commercial production
in October 2015. Successful operation of this power plant continued until December 2016, and the power plant is in the process
of being relocated to another customer site in South Korea. The joint venture is currently seeking commercial traction of the technology
to scale to multi-MWs serving the Korean market for alternate energy production using surplus hydrogen at refinery sites.





Alstom Transport,In May
2015, we entered into a mutually exclusive (for the European market) 10 year development and supply agreement for passenger rail
propulsion systems. Under the terms of the agreement Hydrogenics will supply prototype and pre-series units for certifications
trials and then progress to production series for a minimum of 200 units over 10 years.



Intellectual Property



We protect our intellectual property by means of a combination
of patents, copyrights, trademarks, trade secrets, licenses, non-disclosure agreements and contractual provisions. We generally
enter into non-disclosure and confidentiality agreements with each of our employees, consultants and third parties that have access
to our proprietary technology. We currently hold 128 patents in a variety of jurisdictions and have 48 patent applications pending.
Additionally, we enter into commercial licenses and cross-licenses to access third party intellectual property.



We believe our intellectual property provides us with a strong
competitive advantage and represents a significant barrier to entry into our industry for potential competitors.  As part
of our patent portfolio, we maintain a collection of innovative energy storage patents with broad and exclusive rights concerning
the use of excess electrical power to produce hydrogen from water while simultaneously providing electric grid stabilization services. 
We believe these patents place Hydrogenics in the strongest possible position to build our company over the long-term and will
continue to strengthen our efforts as electric grid operators look to hydrogen as an important strategy for utility-scale energy
storage.









FORM 20-FPage 25


Hydrogenics Corporation


We typically retain sole ownership of intellectual property developed
by us. In certain situations we provide for shared intellectual property rights. We have these rights in perpetuity, including
subsequent improvements to the licensed technology.



Given the relative early stages of our industry, our intellectual
property is and will continue to be important in providing differentiated products to customers.



Manufacturing



The majority of our manufacturing services, including parts procurement,
kitting, assembly and repair, are carried out in-house at our respective business unit manufacturing facilities. We continue to
streamline and increase the capacity of our operations to meet the demand of our customers.



In some cases, we anticipate being able to move various aspects
of our manufacturing operations to third parties or other lower cost jurisdictions as production volumes increase. By moving to
third parties, we would benefit from contract manufacturing economies of scale, access to high quality production resources and
reduced equipment capital costs and equipment obsolescence risk. We have also commenced sourcing components from third parties
in Asia and expect to increase the volume over time to reduce our material costs.



We are dependent on third party suppliers for certain key materials
and components for our products such as membrane electrode assemblies and ultra capacitors. We believe we have sufficient sources
and price stability of our key materials and components.



We have certifications in ISO 9001-2008 in both our Oevel and Mississauga
facilities, and ISO 14001 and OHSAS 18001 in our Oevel facility.



Government Regulation



We are not subject to regulatory commissions governing traditional
electric utilities and other regulated entities in any of the jurisdictions that we operate in. Our products are subject to oversight
and regulation by governmental bodies in regards to building codes, fire codes, public safety, electrical and gas pipeline connections
and hydrogen siting, among others.



Organizational Structure



As of March 8, 2017, we beneficially owned, directly or indirectly,
100% of the voting and non-voting securities of the material subsidiaries listed below.



|Subsidiaries          |  | Jurisdiction of Incorporation
|--------------------- |  | -----------------------------
|                      |  |                              
|Hydrogenics Europe NV |  | Belgium                      
|                      |  |                              
|Hydrogenics GmbH      |  | Germany                      



In 2014 we invested into and hold a 49% interest in Kolon-Hydrogenics,
a joint venture incorporated in South Korea. Kolon-Hydrogenics Co. Ltd owns 100% of Kolon Hydrogenics Power Co. Ltd, an incorporated
Korean company whose focus is on renewable energy opportunities.





FORM 20-FPage 26


Hydrogenics Corporation




Property, Plant and Equipment



Facilities



We have the following facilities:



| | · | Mississauga,
                                         Ontario, Canada. Our 25,300 square foot facility in Mississauga, Ontario serves as
                                         our corporate headquarters and Power Systems manufacturing facility. It is leased until
                                         October 31, 2018. Principal activities at this facility include the manufacture and assembly
                                         of our fuel cell power modules, and research and product development for our fuel cell
                                         power products, fuel cell testing services and our corporate activities. We also have
                                         an additional 25,900 square foot facility in Mississauga, which contains additional manufacturing
                                         space for larger projects. It is leased until September 28, 2018.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     

| | · | Oevel-Westerlo,
                                         Belgium. Our 67,813 square foot facility in Oevel-Westerlo, Belgium, serves as our
                                         manufacturing facility for our OnSite Generation business and is leased until August
                                         30, 2021. Principal activities at this facility include the manufacture and assembly
                                         of our hydrogen generation equipment, water electrolysis research and product development
                                         as well as administrative functions related to our OnSite Generation business.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Gladbeck,
                                         Germany. Our Power Systems group maintains a 13,300 square foot facility in Gladbeck,
                                         Germany, which is leased until December 31, 2018. This facility is used to provide fuel
                                         cell integration services for European customers and serves as our European office for
                                         the fuel cell activities of our Power Systems business.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



We also have small sales and service offices in Eastern Europe
and North America. We believe our facilities are presently adequate for our operations and we will be able to maintain suitable
space needed on commercially reasonable terms.



|ITEM 4A. |  | UNRESOLVED STAFF COMMENTS
|-------- |  | -------------------------



None.



|ITEM 5. |  | OPERATING AND FINANCIAL REVIEW AND PROSPECTS
|------- |  | --------------------------------------------



Management’s
Discussion of Financial Condition and Results of Operations (“MD&A”)



The following
discussion and analysis of our financial condition and results of operations for the fiscal years ended December 31, 2016, 2015,
and 2014 should be read in conjunction with our audited consolidated financial statements and related notes included in this Form
20-F.



Operating Results



A detailed discussion of our operating results
for 2016, 2015 and 2014



This section provides a detailed discussion of
our financial performance based on our consolidated financial statements. All references to per share amounts pertain to net loss
per share. Certain of the prior year’s figures have been reclassified to conform to the current year’s presentation.







FORM 20-FPage 27


Hydrogenics Corporation


Hydrogenics Corporation

Summary Financial Analysis

(Thousands of US dollars, except per share amounts)

|                                                           |  |      |         |   |              |   |         |              | 
|---------------------------------------------------------- |  | ---- | ------- | - | ------------ | - | ------- | ------------ | 
|                                                           |  |      |         |   | 2016 vs 2015 |   |         | 2015 vs 2014 | 
|                                                           |  | 2016 |         |   | 2015         |   |         | 2014         | 
|                                                           |  |      |         |   |              |   |         |              | 
|OnSite Generation                                          |  | $    | 17,510  |   |              | $ | 23,556  |              | 
|Power Systems                                              |  |      | 11,480  |   |              |   | 12,308  |              | 
|Total revenue                                              |  |      | 28,990  |   |              |   | 35,864  |              | 
|                                                           |  |      |         |   |              |   |         |              | 
|Gross profit                                               |  |      | 5,995   |   |              |   | 5,971   |              | 
|Gross Margin %                                             |  |      | 21      | % |              |   | 17      | %            | 
|                                                           |  |      |         |   |              |   |         |              | 
|Selling, general and administrative expenses               |  |      | 10,825  |   |              |   | 10,215  |              | 
|Research and product development expenses                  |  |      | 3,576   |   |              |   | 4,070   |              | 
|                                                           |  |      |         |   |              |   |         |              | 
|Income (loss) from operations                              |  |      | (8,406  | ) |              |   | (8,314  | )            | 
|Finance income (loss), net                                 |  |      | (1,451  | ) |              |   | (3,128  | )            | 
|Net loss                                                   |  | $    | (9,857  | ) |              | $ | (11,442 | )            | 
|Net loss per share                                         |  | $    | (0.79   | ) |              | $ | (1.12   | )            | 
|                                                           |  |      |         |   |              |   |         |              | 
|Cash operating costs1                                      |  | $    | 13,894  |   |              | $ | 14,102  |              | 
|Adjusted EBITDA1                                           |  |      | (7,555  | ) |              |   | (7,875  | )            | 
|                                                           |  |      |         |   |              |   |         |              | 
|Cash used in operating activities                          |  |      | (13,213 | ) |              |   | (5,838  | )            | 
|Cash and cash equivalents (including restricted cash)      |  |      | 11,278  |   |              |   | 24,901  |              | 
|Total assets                                               |  |      | 49,273  |   |              |   | 59,368  |              | 
|Total non-current liabilities (excluding deferred revenue) |  | $    | 10,103  |   |              | $ | 4,059   |              | 





FORM 20-FPage 28


Hydrogenics Corporation




Highlights for 2016 compared to 2015:



|· | Revenues
                                         decreased by $7.0 million or 19% to $29.0 million for the year ended December 31, 2016
                                         compared to $35.9 million in the prior year. The decrease of $7.0 million was due to
                                         i) a decline in new customer capital expenditures, plant expansion expenditures, and
                                         energy storage projects for which the market is developing; ii) the completion in 2015
                                         of a $2.3 custom project for which there was no comparable project revenue in 2016; and
                                         timing impacts on our long term significant custom project totaling $1.3 million. Partially
                                         offsetting this was i) an increase of $2.7 million in the Chinese mobility market in
                                         2016; and ii) an increase of $0.8 million related to our hydrogen fuel cell systems for
                                         commuter trains in Europe, for which two additional train fuel cell modules were shipped
                                         in 2016. During 2016, the Company received new orders for $21.2 million (2015 - $14.9
                                         million) for the OnSite Generation business and $22.8 million (2015 - $58.5 million)
                                         for the Power Systems business.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

|                  |  |                           |      |  |                 |   |      |    |  |   |                                      |   |  |                           |     
|----------------- |  | ------------------------- | ---- |  | --------------- | - | ---- | -- |  | - | ------------------------------------ | - |  | ------------------------- | ----
|                  |  | December 31, 2015 backlog |      |  | Orders Received |   |      | FX |  |   | Orders Delivered/ Revenue Recognized |   |  | December 31, 2016 backlog |     
|OnSite Generation |  | $                         | 17.1 |  |                 | $ | 21.2 |    |  | $ | -                                    |   |  | $                         | 17.5
|Power Systems     |  |                           | 76.2 |  |                 |   | 22.8 |    |  |   | (1.7                                 | ) |  |                           | 11.5
|Total             |  | $                         | 93.3 |  |                 | $ | 44.0 |    |  | $ | (1.7                                 | ) |  | $                         | 29.0







| | · | Of the above backlog of $106.6 million, we expect to recognize approximately $38 million in the
following twelve months as revenue. In addition, revenue for the year ending December 31, 2017 will also include orders received
and delivered in 2017.
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





| | · | Gross
                                         profit increased from 16.6% to 20.7% of revenue, driven by several key first-of-a-kind
                                         projects that had a lower margin profile included in 2015, the impact of the increased
                                         revenues in the Chinese mobility market, partially offset by lower absorption of indirect
                                         fixed overhead costs and changes in product mix (including a lower proportion of custom
                                         projects including engineering services). Total gross margin was driven by the decrease
                                         in revenue during 2016, as production capacity was down from normal levels.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





| | · | Cash operating costs were $13.9 million in the current year compared to $14.1 million for
                                                            2015, with the lower costs a result of a decrease in net R&D expenditures, partially offset by the increase in SG&A
                                                            expenses excluding stock-based compensation and amortization and depreciation.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





| | · | Selling,
                                         general and administrative (“SG&A”) expenses for 2016 of $10.8 million
                                         were greater by $0.6 million or 	6% compared to $10.2 million for the year ended December
                                         31, 2015. The increase over the prior year was due largely to i) increased sales costs
                                         attributable to greater order intake; ii) a provision for doubtful accounts of $0.8 million
                                         iii) an increase in costs related to Power-to-Gas and rail transportation market development
                                         of $0.2 million. This is partially offset by i) the reversal of an indemnification liability
                                         of $0.5 million associated with an acquisition in 2004; ii) a decrease of $0.2 million
                                         in stock based compensation relating to our performance share units (“PSUs”)
                                         as a result of the changes in vesting assumptions; and iii) the impact of the weakening
                                         Canadian dollar relative to the US dollar of approximately $0.2 million.
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Research
                                         and product development (“R&D”) expenses were $3.6 million for the year
                                         ended December 31, 2016 compared to $4.1 million in 2015. In the OnSite Generation segment,
                                         R&D activity has increased $0.3 million due to increased spending, and is offset
                                         by increased funding of $1.7 million both of which are primarily due to the power to
                                         gas demonstration project in Denmark, announced in February 2016. This was partially
                                         offset by an increase in both expenses and funding in Power Systems related to increased
                                         spending on the multi mega-watt system development, the development of in-house manufacturing
                                         processes, as well as further development on the heavy-duty mobility market.
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





FORM 20-FPage 29


Hydrogenics Corporation




| | · | The
                                         Adjusted EBITDA loss decreased to $7.6 million for the year ended December 31, 2016 from
                                         $7.9 million for last year, for the reasons noted above.
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Net
                                         loss for the year ended December 31, 2016, was $9.9 million or $0.77 per share compared
                                         to a net loss of $11.4 million or $1.12 per share for the prior year. The net loss in
                                         the current period reflects an increase in other finance gains (losses) of $2.1 million
                                         due to the results for 2016 including a gain from change in fair value of outstanding
                                         warrants of $0.8 million as a result from the decrease in our share price during 2016.
                                         The 2015 figures included the issuance of warrants ($0.9 million) as well as fair value
                                         adjustments relating to held for trading foreign exchange forward contracts ($0.6 million).
                                         Also contributing to the decrease in net loss was a decrease in R&D expenses described
                                         above. This change was partially offset by an increase in SG&A expenses of $0.6 million,
                                         an increase in interest expense of $0.4 million due to debt outstanding for a greater
                                         period in the year, and an increase in the loss from our joint venture of $0.1 million.
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------







Highlights for 2015 compared to 2014:



|· | Revenues
                                         decreased by $9.7 million or 21% to $35.9 million for the year ended December 31, 2015
                                         compared to $45.5 million in the prior year. Of the total decrease of $9.7 million, $5.0
                                         million or 52% of the decline was due to the impact of the weakening euro year-over-year
                                         against the US dollar. The balance of the decline of $4.7 million was due to reduced
                                         order volume in both the Power Systems and OnSite Generation groups.
|- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

| | · | During
                                         2015, the Company received new orders for $14.9 million (2014 – $36.3 million)
                                         for the OnSite Generation business and $58.5 million (2014 – $17.2 million) for
                                         the Power Systems business.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Gross
                                         profit decreased $5.2 million to $6.0 million, or 16.6% of revenue, driven by the decrease
                                         in revenue during 2015 bringing production capacity down from normal levels, several
                                         key first-of-a-kind projects that had a lower margin profile, changes in product mix
                                         (including a lower proportion of custom projects, including engineering services), as
                                         well as gross margin compression as a result of the weakening euro and Canadian dollar
                                         relative to the US dollar.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | SG&A
                                         expenses for 2015 of $10.2 million were lower by $1.6 million or 13% compared to $11.8
                                         million for the year ended December 31, 2014. The improvement over the prior year was
                                         due largely in part to the weakening of the euro and the Canadian dollar relative to
                                         the US dollar. Also contributing to the decrease is the reversal of previously recorded
                                         stock based compensation due to changes in managements estimates, as well as a mark-to-market
                                         adjustment on the deferred share units (“DSUs”) and restricted share units
                                         (“RSUs”) compared to the prior year as a result of the decline in share price
                                         to C$12.35 the end of 2015 from C$15.42 per share at the end of 2014.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | R&D
                                         expenses were $4.1 million for the year ended December 31, 2015 compared to $3.3 million
                                         in 2014, with the increase due primarily to a reduction in R&D funding in OnSite
                                         Generation of $1.0 million, increased spending on R&D projects, specifically related
                                         to power to gas projects partially offset by a reduction of R&D expenses due to the
                                         weakening of the euro and the Canadian dollar relative to the US dollar.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | The
                                         Adjusted EBITDA loss increased to $7.9 million for the year ended December 31, 2015 from
                                         $2.5 million for 2014, for the reasons noted above.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Net
                                         loss for the year ended December 31, 2015, was $11.4 million or $1.12 per share compared
                                         to a net loss of $4.5 million or $0.47 per share for 2014. The net loss in the 2015 reflects
                                         i) the lower revenues and lower margins ($5.2 million); ii) an increase in other finance
                                         losses due to the issuance and subsequent adjustment of warrants ($0.9 million) and fair
                                         value adjustments relating to held for trading foreign exchange forward contract ($0.6
                                         million); iii) increased interest expense due to interest expense on the institutional
                                         long-term debt entered into in 2015 ($0.5 million), financing costs related to the institutional
                                         long-term debt ($0.3 million); and iv) an increase in R&D expenses ($0.8 million).
                                         This was partially offset by the decrease in SG&A expenses described above.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------







FORM 20-FPage 30


Hydrogenics Corporation


| | · | Cash
                                         operating costs were $14.1 million in 2015 compared to $13.9 million for 2014, with the
                                         higher costs a result of an increase in R&D expenditures partially offset by lower
                                         SG&A expenses.
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





Business Segment Review



We report
our results in two business segments (OnSite Generation and Power Systems). Corporate and Other is the provision of corporate
services and administrative support. These segments are differentiated by the products developed and end-customer markets. Our
reporting structure reflects how we manage our business and how we classify our operations for planning and measuring performance.
See “Item 4, Information on the Company – Business Overview” for a description of our business segments.



OnSite Generation

Summary Financial Analysis

(Thousands of US dollars)

|                                             |  |                         |        |   |              |   |        |              | 
|-------------------------------------------- |  | ----------------------- | ------ | - | ------------ | - | ------ | ------------ | 
|                                             |  | Years ended December 31 |        |   | 2016 vs 2015 |   |        | 2015 vs 2014 | 
|                                             |  | 2016                    |        |   | 2015         |   |        | 2014         | 
|Revenues                                     |  | $                       | 17,510 |   |              | $ | 23,556 |              | 
|Gross profit                                 |  |                         | 3,465  |   |              |   | 3,391  |              | 
|Gross margin %                               |  |                         | 20     | % |              |   | 14     | %            | 
|Selling, general and administrative expenses |  |                         | 2,910  |   |              |   | 2,665  |              | 
|Research and product development expenses    |  |                         | 516    |   |              |   | 1,917  |              | 
|Segment income (loss)                        |  | $                       | 39     |   |              | $ | (1,191 | )            | 



Revenues decreased by $6.0 million or 26% to $17.5
million for the year ended December 31, 2016 compared to $23.6 million for 2015. Revenue in 2016 consisted of the sale of electrolyzer
products to customers in industrial gas markets and hydrogen fueling stations. Revenues decreased due to a decline in new customer
capital expenditures and plant expansion expenditures (in particular in key markets such as Eastern Europe and Russia), as well
as a decrease in energy storage projects within the current year’s revenue as this new market is currently developing and
revenue is sporadic. Orders awarded for the year ended December 31, 2016 were $21.2 million (December 31, 2015 - $14.9 million).
At December 31, 2016 we had $20.3 million of confirmed orders (December 31, 2015 - $14.8 million), to be delivered and recognized
as revenue in 2017. Revenues for 2015 decreased from 2014 due to a decline in new customer capital expenditures and plant expansion
expenditures (in particular in key markets such as Eastern Europe and Russia) as well as the weakening of the euro which impacted
revenue by approximately $3.7 million.





Gross Margin improved in 2016 to 20% compared to 14%
in 2015 primarily reflecting the 2015 impact of low margin first-of-a-kind projects. The first-of-a-kind projects completed in
2015 included the industrial gas application of detritiation of contaminated waste water at nuclear reactor sites, as well as a
portion of the energy storage, power to gas facility project with E.ON. Partially offsetting this increase was approximately $0.2
million of gross margin compression as a result of the weakening Canadian dollar relative to the US dollar. Gross margin declined
in 2015 to 14% compared to 20% in 2014 primarily due to the decrease in revenue during 2015, bringing production capacity down
from anticipated levels, lower margin orders – in particular in key first-of-a-kind projects as well as gross margin compression
as a result of the weakening euro and Canadian dollar relative to the US dollar.









FORM 20-FPage 31


Hydrogenics Corporation


SG&A Expenses were $2.9 million for the year
ended December 31, 2016, an increase of $0.2 million due to increased sale costs attributable to greater order intake. SG&A
expenses in 2015 decreased $0.6 million due to the impact of the weaker euro relative to the US dollar, as well as reduced sale
costs attributable to lower revenue/order intake.



R&D Expenseswere $0.5 million during 2016 compared
to $1.9 million for the year ended December 31, 2015. R&D activity has increased $0.3 million due to increased spending, and
is offset by increased funding of $1.7 million both of which are primarily due to the power to gas demonstration project in Denmark,
announced in February 2016. The net impact of these fluctuations is a net decrease of R&D expenses of $1.4 million. R&D
expenses increased to $1.9 million during 2015 compared to spending of $1.1 million for the year ended December 31, 2014 attributable
to reduced funding on projects, partially offset by projects nearing the completion stage, as well as the impact of the weaker
euro relative to the US dollar.



Segment Income (Loss)increased $1.2 million to income
of less than $0.1 million for the year ended December 31, 2016 compared to a loss of $1.2 million for the prior year. Segment
loss for 2015 decreased $2.9 million to a loss of $1.2 million compared to a gain of $1.7 million for 2014.





Power Systems

Summary Financial Analysis

(Thousands of US dollars)

|                                             |  |                         |        |   |              |   |        |              | 
|-------------------------------------------- |  | ----------------------- | ------ | - | ------------ | - | ------ | ------------ | 
|                                             |  | Years ended December 31 |        |   | 2016 vs 2015 |   |        | 2015 vs 2014 | 
|                                             |  | 2016                    |        |   | 2015         |   |        | 2014         | 
|Revenues                                     |  | $                       | 11,480 |   |              | $ | 12,308 |              | 
|Gross Profit                                 |  |                         | 2,530  |   |              |   | 2,580  |              | 
|Gross margin %                               |  |                         | 22     | % |              |   | 21     | %            | 
|Selling, General and Administrative Expenses |  |                         | 4,579  |   |              |   | 3,920  |              | 
|Research and Product Development Expenses    |  |                         | 2,889  |   |              |   | 2,126  |              | 
|Segment Income (Loss)                        |  | $                       | (4,938 | ) |              | $ | (3,466 | )            | 





Revenues decreased $0.8 million or 7% to $11.5 million
for the year ended December 31, 2016 compared to $12.3 million for 2015. Included within 2015 was the impact of a significant project
to a research organization of $2.3 million, as well greater revenue on our long term significant custom project totaling $1.3 million.
There was also $0.9 million additional revenue in 2015 related to our one megawatt stationary fuel cell power plant in South Korea
for which there was no corresponding revenue in 2016. Partially offsetting this was an increase of $2.7 million in the Chinese
mobility market in 2016. Also offsetting this decrease was an increase of $0.8 million related to our hydrogen fuel cell systems
for commuter trains in Europe, for which two additional train sets were shipped in 2016. Included within our work in process inventory
at December 31, 2016 were two more additional train sets to be completed shortly after the end of fiscal year 2016. Orders awarded
for the year ended December 31, 2016 were $22.8 million (December 31, 2015 - $58.5 million). At December 31, 2016, backlog was
$85.8 million of confirmed orders for Power Systems’ products and services (December 31, 2015 - $76.2 million), with $17.8
million of this backlog expected to be recognized as revenue in 2017. Revenue for 2015 decreased $3.0 million or 20% to $12.3 million
compared to $15.4 million for 2014. Revenue for 2015 excluding the foreign exchange impact due to the weakening of the euro, decreased
$1.7 million. While order intake significantly increased, in 2015 there was a decrease in the revenue recognized due to the long
term nature of significant projects.







Gross Marginimproved to 22% during 2016 from 21%
for the prior year, with the increase in the current period reflecting a greater proportion of custom projects, including engineering
services, which generally have higher gross margins, partially offset by lower absorption of indirect fixed overhead costs
as a result of the decrease in revenue. This was offset by the impact of the increased revenues in the Chinese mobility market.
Gross margin declined in 2015 from 2014 reflecting gross margin compression as a result of the weakening euro and Canadian dollar
relative to the US dollar, as well as a lower proportion of custom projects, including engineering services, which generally have
higher gross margins combined with the impact of the lower margin project to a research organization in the current period.









FORM 20-FPage 32


Hydrogenics Corporation






SG&A Expensesincreased by 17% to $4.6 million
for the year ended December 31, 2016 compared to $3.9 million for the prior year. Expenses were greater in the current year due
to a provision for doubtful accounts of $0.8 million, as well as an increase in costs related to Power-to-Gas and rail transportation
market development of $0.1 million; partially offset by the impact of the weakening Canadian dollar relative to the US dollar
of approximately $0.2 million. SG&A expenses in 2015 decreased by 5% to $3.9 million compared to $4.1 million for 2014. Expenses
were lower in 2015 due to the weakening Canadian dollar relative to the US dollar.



R&D Expenses increased by 36% to $2.9 million
for the year ended December 31, 2016 from $2.1 million for the year ended December 31, 2015. Gross R&D expenses increased
$1.6 million, and were offset by an increase in R&D funding of $0.8 million. The increase in R&D expenses primarily relate
to increased spending on the multi mega-watt system development, the development of in-house manufacturing processes, as well
as further development for the heavy-duty mobility market. The increase in R&D funding primarily relates to the funding of
the heavy-duty mobility market project in California. This is offset by the impact of the weakening Canadian dollar relative to
the US dollar. R&D expenses in 2015 were consistent with 2014, due to increased spending on R&D projects, specifically
related to power to gas projects, offset by the impact of the weakening Canadian dollar relative to the US dollar.



Segment Loss increased $1.5 million to a loss of
$4.9 million for the year ended December 31, 2016 compared to a loss of $3.5 million for the year ended December 31, 2015. In
2015, segment loss declined $2.2 million to a loss of $3.5 million for the year ended December 31, 2015 compared to a loss of
$1.2 million for the year ended December 31, 2014.





Corporate and Other

Summary Financial Analysis

(Thousands of US dollars)

|                                             |  |                         |        |   |              |   |        |              | 
|-------------------------------------------- |  | ----------------------- | ------ | - | ------------ | - | ------ | ------------ | 
|                                             |  | Years ended December 31 |        |   | 2016 vs 2015 |   |        | 2015 vs 2014 | 
|                                             |  | 2016                    |        |   | 2015         |   |        | 2014         | 
|Selling, general and administrative expenses |  | $                       | 3,336  |   |              | $ | 3,630  |              | 
|Research and product development expenses    |  |                         | 171    |   |              |   | 27     |              | 
|Net other finance gains (losses)             |  |                         | 735    |   |              |   | (1,338 | )            | 
|Loss on joint venture                        |  |                         | (156   | ) |              |   | (40    | )            | 
|Interest income (expense)                    |  |                         | (1,762 | ) |              |   | (1,322 | )            | 
|Foreign exchange gains (losses) net          |  |                         | (268   | ) |              |   | (428   | )            | 
|Total                                        |  | $                       | (4,958 | ) |              | $ | (6,785 | )            | 



SG&A Expensesdecreased by $0.3 million or 8%
to $3.3 million for the year ended December 31, 2016 compared to $3.6 million for 2015. The improvement over the prior year was
due partly to the reversal of an indemnification liability of $0.5 million that had been set up associated with an acquisition
in 2004. Stock based compensation relating to our PSUs decreased $0.2 million as a result of the changes in assumptions relating
to the vesting in the prior and current period. Also contributing to the decrease is the weakening of the Canadian dollar relative
to the US dollar of $0.2 million. Offsetting these decreases, is the impact of a $0.4 million decrease in the reversal of previously
recorded stock based compensation due to changes in managements estimates as 2016 included a reversal of $0.2 million whereas
2015 included a reversal of $0.5 million. For the year ended December 31, 2015, SG&A expenses decreased by $0.7 million or
16% to $3.6 million for the year ended December 31, 2015 compared to $4.3 million for 2014. The improvement over 2014 was due
largely in part to the weakening of the euro and the Canadian dollar relative to the US dollar. Also contributing to the decrease
is the reversal of previously recorded stock based compensation due to changes in managements estimates, as well as a mark-to-market
adjustment on the DSUs compared to the prior year as a result of the decline in share price to C$12.35 at the end of 2015 from
C$15.42 per share at the end of 2014.







FORM 20-FPage 33


Hydrogenics Corporation


R&D Expenseswere $0.2 million for the year ended
December 31, 2016 and less than $0.1 million at December 31, 2015, and reflect the cost of maintaining our intellectual property.



Net Other Finance Gains (Losses)increased by $2.1
million to a gain of $0.7 million for the 2016 year compared to a loss of $1.3 million at the end of 2015. The increase is due
to the results for 2016 including a gain from change in fair value of outstanding warrants of $0.8 million as a result from the
decrease in our share price over 2016. The 2015 figures included i) the issuance of warrants ($0.9 million); and (ii) fair value
adjustments relating to held for trading foreign exchange forward contract ($0.6 million). In 2015, net other finance losses increased
by $1.1 million to a loss of $1.3 million for the 2015 year compared to a loss of $0.2 million at the end of 2014. The increase
is due to i) the issuance of warrants ($0.9 million); and (ii) fair value adjustments relating to held for trading foreign exchange
forward contract ($0.6 million).



Loss on joint venturewere $0.2 million for the year
ended December 31, 2016 and less than $0.1 million at December 31, 2015.



Interest expenseincreased by $0.4 million to $1.8
million for the 2016 year. The increase is due to increased interest expense on the institutional long-term debt entered into
in 2015 ($0.2 million) as it was outstanding for greater days in 2016; and interest expense on the long-term debt with EDC entered
into in 2016 of $0.2 million. For the year ended December 31, 2015, interest expense increased by $0.8 million to $1.3 million.
The increase is due to interest expense on the institutional long-term debt entered into in 2015 ($0.5 million); and financing
costs related to the institutional long-term debt ($0.3 million).



Financial Condition



A discussion of the significant changes in our consolidated
balance sheets



As at December 31

(Thousands of US dollars)

|                                                                   |  |             |        |  |             |   |        |                     | 
|------------------------------------------------------------------ |  | ----------- | ------ |  | ----------- | - | ------ | ------------------- | 
|                                                                   |  | December 31 |        |  | December 31 |   |        | Increase/(decrease) | 
|                                                                   |  | 2016        |        |  | 2015        |   |        | $                   | 
|Cash, cash equivalents, restricted cash and short-term investments |  | $           | 11,278 |  |             | $ | 24,901 |                     | 
|Trade and other receivables                                        |  |             | 9,802  |  |             |   | 10,419 |                     | 
|Inventories                                                        |  |             | 17,208 |  |             |   | 14,270 |                     | 
|Operating borrowings                                               |  |             | 2,111  |  |             |   | 1,086  |                     | 
|Trade and other payables                                           |  |             | 7,235  |  |             |   | 7,776  |                     | 
|Financial liabilities                                              |  |             | 3,939  |  |             |   | 9,034  |                     | 
|Warranty provisions (current and non-current)                      |  |             | 2,062  |  |             |   | 3,193  |                     | 
|Deferred revenue (current and non-current)                         |  |             | 14,282 |  |             |   | 14,910 |                     | 
|Other non-current liabilities                                      |  | $           | 9,262  |  |             | $ | 3,121  |                     | 







FORM 20-FPage 34


Hydrogenics Corporation


Cash, cash equivalents, restricted cash and short-term investmentswere $11.3 million, a decrease of $13.6 million or 55%. Refer to Section 6 – Liquidity for a discussion of the change
in cash, cash equivalents, restricted cash and short-term investments.



Trade and other receivableswere $9.8 million. Excluding
the foreign exchange impact as a result of the weakening of the euro relative to the US dollar, trade and other receivables decreased
$0.4 million due to the collection of outstanding receivables in the period.



Inventorieswere $17.2 million compared to $14.3
million, an increase of 21%. Excluding the foreign exchange impact as a result of the weakening of the euro when compared to the
US dollar in the current period, inventories in fact increased approximately $3.2 million as a result of expected product deliveries
during early 2017.



Operating borrowings were $2.1 million compared to
$1.1 million, an increase of 94%, the result of the increased working capital requirements associated with the increase in inventory.



Trade and other payableswere $7.2 million, a decrease
of $0.5 million compared to $7.8 million at the end of December 31, 2015. Suppliers payments for inventory shipped during the
fourth quarter of 2016 increased as compared to 2015, associated with the increase in operating borrowings.



Financial liabilitieswere $3.9 million, a decrease
of $5.0 million, primarily as a result of the repayment of the institutional debt outstanding at December 31, 2015 of $7.1 million,
partially offset by the current portion of long-term debt for the Province of Ontario and EDC of $3.2 million.



Warranty provisionswere $2.1 million, a decrease
of $1.1 million from $3.2 million at December 31, 2015. The decrease is due to the timing of the expiration of product warranties,
as well as the decrease in revenue in 2016 as fewer products were sold.



Deferred revenueswere $14.3 million, a decrease
of $0.6 million or 4%, reflecting changes in customer deposits received. As a result of increased deposits related to order bookings
in the Power business segment, deferred revenues increased approximately $2.1 million. This was offset by a decrease in the OnSite
business segment related to a significant deposit at December 31, 2015 related to a government project.



Other non-current liabilities were $9.3 million at
December 31, 2016, an increase of $6.1 million due primarily to the long-term debt entered into with EDC in 2016, for which $6.5
million was included in other non-current liabilities. This was partially offset by a decrease in other non-current liabilities
related to the long-term debt with the Province of Ontario, as the current portion increased.







FORM 20-FPage 35


Hydrogenics Corporation


Summary of Quarterly Results



A summary view of our quarterly financial performance



The following table highlights selected financial information for
the eight consecutive quarters ended December 31, 2016.



(Thousands of US dollars - except per share amounts)

|                                               |  |         |            |   |         |   |            |         |  |   |            |   |  |         |            |   |         |   |            |         |  |   |            |  
|---------------------------------------------- |  | ------- | ---------- | - | ------- | - | ---------- | ------- |  | - | ---------- | - |  | ------- | ---------- | - | ------- | - | ---------- | ------- |  | - | ---------- | -
|                                               |  | 2016 Q4 |            |   | 2016 Q3 |   |            | 2016 Q2 |  |   | 2016 Q1    |   |  | 2015 Q4 |            |   | 2015 Q3 |   |            | 2015 Q2 |  |   | 2015 Q1    |  
|Revenues                                       |  | $       | 8,730      |   |         | $ | 6,733      |         |  | $ | 9,198      |   |  | $       | 4,329      |   |         | $ | 11,321     |         |  | $ | 9,644      |  
|Gross profit                                   |  |         | 1,965      |   |         |   | 1,000      |         |  |   | 1,819      |   |  |         | 1,211      |   |         |   | 1,675      |         |  |   | 2,101      |  
|Gross margin %                                 |  |         | 23         | % |         |   | 15         | %       |  |   | 20         | % |  |         | 28         | % |         |   | 15         | %       |  |   | 22         | %
|Adjusted EBITDA1                               |  |         | (1,737     | ) |         |   | (1,466     | )       |  |   | (2,463     | ) |  |         | (1,889     | ) |         |   | (1,838     | )       |  |   | (1,382     | )
|Net loss                                       |  |         | (2,504     | ) |         |   | (1,899     | )       |  |   | (3,092     | ) |  |         | (2,362     | ) |         |   | (2,122     | )       |  |   | (2,192     | )
|Net loss per share - (basic and fully Diluted) |  | $       | (0.20      | ) |         | $ | (0.15      | )       |  | $ | (0.25      | ) |  | $       | (0.19      | ) |         | $ | (0.20      | )       |  | $ | (0.22      | )
|Weighted average common shares outstanding     |  |         | 12,542,950 |   |         |   | 12,544,960 |         |  |   | 12,541,080 |   |  |         | 12,540,757 |   |         |   | 10,518,178 |         |  |   | 10,092,375 |  



Note:



| | 1. | Adjusted EBITDA is a Non-IFRS measure. See Page 38 for the definition and reconciliation of this Non-IFRS
measure.
| | -- | ------------------------------------------------------------------------------------------------------------------





In the first quarter of 2016, our net loss decreased by $1.1 million
($0.15 per common share) compared to the first quarter of 2015. This decrease is primarily due to a decrease in foreign currency
losses of $0.8 million, higher margin sales, as well as an increase in other finance gains of $0.1 million due to the change in
market value of the outstanding warrants, partially offset by an increase in interest expense of $0.3 million.



In the second quarter of 2016, our net loss decreased by $0.6 million
($0.12 per common share) compared to the second quarter of 2015. The change is primarily due to a decrease in other finance losses
of $0.8 million, an improvement in margin due to product mix as well as higher absorption of indirect overhead costs as a result
of the increase in revenue. This was partially offset by an increase in SG&A expenses and R&D expenses.



In the third quarter of 2016, our net loss decreased by $0.3 million
($0.07 per common share) compared to the third quarter of 2015. This increase primarily reflects a decrease in other finance losses
of $0.4 million, an increase in adjusted EBITDA loss due to a decrease in gross profit of $1.1 million, partially offset by a
decrease in net R&D expenses of $0.8 million and a decrease in SG&A expenses of $0.2 million (excluding compensation indexed
to our share price) as well as a decrease related to the reversal of previously charged compensation expense of $0.2 million relating
to our PSUs, partially offset by an increase in compensation indexed to our share price of $0.1 million.



In the fourth quarter of 2016, our net loss increased by $0.4 million
compared to the fourth quarter of 2015. A discussion of the key items is as follows:



| | · | Revenues
                                         decreased $2.6 million, or 23%, reflecting decreased revenues in our OnSite Generation
                                         business unit driven by a decline in new capital and plant expansion expenditures by
                                         customers, partially offset by an increase in our Power Systems business unit reflecting
                                         increased order shipments in the last three months of the year related to Chinese mobility
                                         orders as well as shipments related to our hydrogen fuel cell systems for commuter trains
                                         in Europe.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------







| | · | Gross profit was $2.0 million (23% of revenues) compared to $1.7 million (15% of revenues). The
increase in gross margin is due to the absence of the lower margin project to a research organization included in the results of
the fourth quarter of 2015.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





FORM 20-FPage 36


Hydrogenics Corporation




| | · | SG&A
                                         expenses were $3.1 million, an increase of $0.6 million or 25%. Excluding the impacts
                                         of stock-based compensation (recovery), SG&A expenses increased $0.1 million, due
                                         to a provision in our allowance for doubtful accounts of $0.8 million. This was partially
                                         offset by timing in our SG&A expenses in the quarter.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | R&D
                                         expenses were $0.7 million, a decrease of $0.2 million or 233% from $1.0 million in the
                                         fourth quarter of 2015. R&D activity has increased in OnSite Generation business
                                         unit due to increased spending, and is offset by increased funding both of which are
                                         primarily due to the power to gas demonstration project in Denmark, announced in February
                                         2016, reducing the overall R&D expenses.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





| | · | Our loss from joint venture was $0.1 million in the fourth quarter of 2016, an increase of $0.2
million from a gain in the fourth quarter of 2015.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------







The information in this section of our annual report was obtained
from our quarterly unaudited consolidated financial statements, which are denominated in US dollars and have been prepared in
accordance with IFRS. This information is, in the opinion of management, prepared using accounting policies consistent with the
audited consolidated financial statements and includes all adjustments necessary for the fair presentation of the results of the
interim periods. We expect our operating results to vary significantly from quarter to quarter and they should not be relied on
to predict future performance.











FORM 20-FPage 37


Hydrogenics Corporation




Reconciliation and Definition of Non-IFRS Measures



A description, calculation, and reconciliation of certain measures
used by management



Non-IFRS financial measures, including earnings before interest,
taxes, depreciation and amortization (“EBITDA”), “Adjusted EBITDA” and “cash operating costs”
are used by management to provide additional insight into our performance and financial condition. We believe these non-IFRS measures
are an important part of the financial reporting process and are useful in communicating information that complements and supplements
the consolidated financial statements.



Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (“Adjusted
EBITDA”)



The Company believes Adjusted EBITDA assists investors in comparing
a company’s performance on a consistent basis excluding depreciation and amortization, stock-based compensation, including
both share settled PSUs and stock options, equity settled restricted share units (“RSUs”) and cash settled deferred
share units (“DSUs”), which are non-cash in nature and can vary significantly. We believe that removing these expenses
is a better measurement of operational performance. Investors should be cautioned that Adjusted EBITDA, as reported by us, may
not be comparable in all instances to Adjusted EBITDA, as reported by other companies.



The following table provides a reconciliation of Adjusted EBITDA
with net loss:

|                                                                    |  |                        |       
|------------------------------------------------------------------- |  | ---------------------- | ------
|                                                                    |  | Year ended December 31 |       
|                                                                    |  | 2016                   |       
|Net loss                                                            |  | $                      | (9,857
|Finance income                                                      |  |                        | 1,451 
|Depreciation of property, plant and equipment and intangible assets |  |                        | 751   
|Compensation indexed to share price                                 |  |                        | (290  
|Stock-based compensation expense                                    |  |                        | 390   
|Adjusted EBITDA                                                     |  | $                      | (7,555



Cash Operating Costs



We report cash operating costs because management feels they are
a key measurement of the normal operating costs required to operate the ongoing business units of the Company. Cash operating
costs are regularly reported to the chief operating decision maker and correspond to the definition used in our historical quarterly
discussions. Investors should be cautioned that cash operating costs as reported by us may not be comparable in all instances
to cash operating costs as reported by other companies.



The following table provides a reconciliation of cash operating
costs with total operating expenses consisting of Selling, general and administrative expenses and Research and product development
expenses:



FORM 20-FPage 38


Hydrogenics Corporation




|                                                                           |  |                        |       
|-------------------------------------------------------------------------- |  | ---------------------- | ------
|                                                                           |  | Year ended December 31 |       
|                                                                           |  | 2016                   |       
|Selling, general and administrative expenses                               |  | $                      | 10,825
|Research and product development expenses                                  |  |                        | 3,576 
|Total operating costs                                                      |  | $                      | 14,401
|Less: Depreciation of property, plant and equipment  and intangible assets |  |                        | (407  
|Less: Compensation indexed to share price                                  |  |                        | 290   
|Less: Stock-based compensation expense                                     |  |                        | (390  
|Cash operating costs                                                       |  | $                      | 13,894



Impact of inflation



None.



Impact of Foreign Currency Fluctuations



For information regarding the impact of foreign
currency fluctuations on our Company, see “Item 5. Operating and Financial Review and Prospects – Liquidity and Capital
Resources – Foreign Currency Risk” and “Note 4 – Risk Management Arising from Financial Instruments –
Foreign Currency Risk” to our consolidated financial statements, which can be found on page F-51 of this form, and
is incorporated by reference herein.  We currently have limited currency hedging through financial instruments. We carry
a portion of our short-term investments in Canadian dollars and euros.



Governmental Policies



For information regarding the potential impact
of changes in governmental policies on the Company, see “Item 3. Key Information – Risk Factors – Risk Factors
Related to Our Business and Industry.”



Liquidity and Capital Resources



A discussion of our cash flow, liquidity, credit facilities and
other disclosures



The following section explains how we manage our cash and capital
resources to carry out our strategy and deliver results.



Cash Used in Operating Activities

|                                       |  |                         |         |   |      |   |         |          | 
|-------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -------- | 
|                                       |  | Years ended December 31 |         |   |      |   |         |          | 
|(Thousands of US dollars)              |  | 2016                    |         |   | 2015 |   |         | $ Change | 
|Net loss                               |  | $                       | (9,857  | ) |      | $ | (11,442 | )        | 
|(Increase) decrease in restricted cash |  |                         | 542     |   |      |   | 2,172   |          | 
|Net change in non-cash working capital |  |                         | (5,382  | ) |      |   | 1,598   |          | 
|Other items not affecting cash         |  |                         | 1,484   |   |      |   | 1,834   |          | 
|Cash used in operating activities      |  | $                       | (13,213 | ) |      | $ | (5,838  | )        | 





FORM 20-FPage 39


Hydrogenics Corporation




Changes in cash used in operating activities in 2016 compared to
2015 are discussed below.



| | · | Net
                                         loss decreased $1.8 million or 15% as described above in Section 3 – “Operating
                                         Results”.
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Restricted
                                         cash decreased $1.6 million or 75% as a result of reduced outstanding standby letters
                                         of credit and letters of guarantee as at December 31, 2016.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Changes
                                         in non-cash working capital decreased $6.9 million as described above in Section 4 –
                                         “Financial Condition”.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | Other
                                         items decreased by $0.5 million or 28%. The decrease is primarily the result of; (i)
                                         a $0.8 million increase in other finance gains (losses) as a result of the change in
                                         fair value of outstanding warrants as a result of the decrease in our share price; (ii)
                                         a $0.8 million decrease in warrants issued, partially offset by (iii) a $0.5 million
                                         increase in unrealized foreign exchange losses; and a $0.3 million increase in stock-based
                                         compensation expense.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



At current operating levels, we anticipate consuming between $2.0
million and $4.0 million of cash in 2017 to fund our anticipated net losses, non-cash working capital requirements and capital
expenditures. In the event we are successful in securing orders in excess of our base case revenue outlook, our cash requirements
may increase.



Cash Provided By (Used in) Investing Activities

|                                          |  |                         |        |   |      |   |        |          | 
|----------------------------------------- |  | ----------------------- | ------ | - | ---- | - | ------ | -------- | 
|                                          |  | Years ended December 31 |        |   |      |   |        |          | 
|(Thousands of US dollars)                 |  | 2016                    |        |   | 2015 |   |        | $ Change | 
|Purchases of property plant and equipment |  |                         | (2,955 | ) |      |   | (2,028 | )        | 
|Receipt of IDF government funding         |  |                         | 1,201  |   |      |   | 118    |          | 
|Purchase of intangibles                   |  |                         | (48    | ) |      |   | (105   | )        | 
|Cash used in investing activities         |  | $                       | (1,802 | ) |      | $ | (2,015 | )        | 



Cash used in investing activities during 2016 was $1.8 million
compared to $2.0 million for the year ended December 31, 2015 with the decrease due to a decrease in net spending on property,
plant and equipment as a result of increased funding offsetting the increased expenditures. The current year expenditures related
primarily to the Ontario Canada, IESO 2 MW Power-to-Gas storage project which will be operational in 2017, as well as expenditures
on cost-reducing production equipment.



Cash Provided By Financing Activities

|                                                     |  |                         |        |   |      |   |        |          | 
|---------------------------------------------------- |  | ----------------------- | ------ | - | ---- | - | ------ | -------- | 
|                                                     |  | Years ended December 31 |        |   |      |   |        |          | 
|(Thousands of US dollars)                            |  | 2016                    |        |   | 2015 |   |        | $ Change | 
|Repayment of long-term debt - institutional          |  | $                       | (7,500 | ) |      |   | -      |          | 
|Repayment of repayable government contributions      |  |                         | (374   | ) |      | $ | (213   | )        | 
|Proceeds of borrowings                               |  |                         | 8,715  |   |      |   | 6,866  |          | 
|Proceeds of operating borrowings                     |  |                         | 1,072  |   |      |   | 1,113  |          | 
|Common shares issued, warrants and options exercised |  |                         | -      |   |      |   | 17,559 |          | 
|Cash provided by (used in) financing activities      |  | $                       | 1,913  |   |      | $ | 25,325 |          | 





FORM 20-FPage 40


Hydrogenics Corporation


Changes in cash provided by financing activities for the year ended
December 31, 2016 was $1.9 million compared to $25.3 million in the prior year. In 2016, we repaid our institutional long-term
debt for a total repayment of $7.5 million. We also entered into a long-term loan with EDC for net proceeds of $8.7 million after
financing fees.



In 2015 we issued 2,448,385 shares for net proceeds of $17.5 million
in 2015, as well as entered into an 18 month facility with a syndicate of institutional lenders for net proceeds after financing
fees of $6.9 million.



Credit Facilities



On November 4, 2016, Hydrogenics entered into a loan agreement
with EDC for a five year facility of $9.0 million. Included in the terms of the loan agreement, was the issuance of 200,575 warrants
to EDC. Each warrant is exercisable for one common share of the Company at an exercise price of US$6.85 per common share. The
loan bears interest at an annual interest rate of U.S. prime plus 10%, declining to U.S. prime plus 7% (or 5%) if certain annual
EBITDA thresholds are met.



At December 31, 2016, we had a Belgian joint credit and operating
line facility of €9.2 million. Under this facility, we may borrow up to a maximum of 75% of the value of awarded sales contracts,
approved by the Belgian financial institution, to a maximum of €0.5 million; and may also borrow up to €1.5 million
for general business purposes, provided sufficient limit exists under the overall facility limit of €9.2 million. Of this,
€2.8 million or approximately $2.9 million was drawn as standby letters of credit and bank guarantees and €2 million
or approximately $2.1 million was drawn as an operating line. At December 31, 2016, we had availability of less than €4.4
million or approximately $4.7 million (December 31, 2015 - $2.4 million) under this facility for use as letters of credit and
bank guarantees.



The Belgian credit facility bears interest at EURIBOR plus 1.45%
per annum and is secured by a €1 million secured first charge covering all assets of the borrower, as well as related current
and future receivables. Hydrogenics Corporation has also provided a €2.2 million parent company guarantee The credit facility
contains a negative pledge precluding the borrower from providing security over its assets. Additionally, our Belgian subsidiary
is required to maintain a solvency covenant, defined as equity plus current account (intercompany account with our Corporate entity),
divided by total liabilities of not less than 25% and ensure that its intercompany accounts due to Hydrogenics do not fall below
a defined level. At December 31, 2016, we were in compliance with these covenants.



At December 31, 2016 we also had a Canadian credit facility of
$2.3 million. At December 31, 2016, $nil million was drawn as standby letters of credit and bank guarantees. At December 31, 2016,
we had $2.3 million (December 31, 2015 - $2.2 million) available under this facility for use only as letters of credit and bank
guarantees.



These letters of credit and bank guarantees relate primarily
to obligations in connection with the terms and conditions of our sales contracts. The standby letters of credit and letters of
guarantee may be drawn on by the customer if we fail to perform our obligations under the sales contracts.



On September 28, 2011, we entered into a loan agreement with the
Province of Ontario’s Ministry of Economic Development, Strategic Jobs and Investment Fund for funding up to C$6.0 million.
Eligible costs had to be incurred between October 1, 2010 and September 30, 2015. Commencing in the fourth quarter of 2016, the
loan bears interest at a rate of 3.67% and will require repayment at a rate of 20% per year of the outstanding balance.



The loan is collateralized by a general security agreement covering
assets of Hydrogenics Corporation. Additionally, the Corporation is required to maintain a minimum balance of cash in Canadian
dollars in a Canadian financial institution at all times. We were in compliance with this covenant at December 31, 2016.





FORM 20-FPage 41


Hydrogenics Corporation




Financial Instruments, Long-term Debt, Commitments and Contingent Off-balance Sheet
Arrangements



The Corporation’s financial instruments and the nature of the risks, existing
or potential, are as set out in the following table:



|                                              |  | Risk  
|--------------------------------------------- |  | ------
|                                              |  |       
|Financial Instruments                         |  | Credit
|Cash and cash equivalents and restricted cash |  | X     
|Short-term investments                        |  | X     
|Trade and other receivables                   |  | X     
|Trade and other payables                      |  |       
|Financial liabilities                         |  |       
|Non-current liabilities                       |  |       



Credit risk



Credit risk arises from the potential that a counterparty will
fail to perform its obligations. Credit risk associated with cash and cash equivalents, restricted cash and short-term investments
is minimized by limiting net exposure to any one jurisdiction or financial institution and ensuring financial assets are placed
for short periods of time, generally less than 90 days, with governments, well-capitalized financial institutions and other creditworthy
counterparties. Ongoing reviews are performed by management to evaluate changes in the status of financial institutions and counterparties.



Credit risk associated with trade and other receivables is minimized
by carrying out a detailed review and approval by senior management of credit extensions to customers taking into account customer
history, any amounts that are past due and any available relevant information about the customers’ liquidity and potential
going concern problems. In addition, progress payments are generally required by customers as contracts are executed, which generally
results in between 35% and 100% of a contract’s value being collected before shipments are made. Where credit terms are
extended beyond shipment, terms are generally not granted beyond 60 days. We also maintain provisions for potential credit losses.
Any such losses to date have been insignificant.



Currency risk



Foreign currency risk arises because of fluctuations in exchange
rates. We conduct a significant portion of our business activities in currencies other than the functional currency of the parent
company (US dollars) and the functional currency of our self-sustaining subsidiaries (euro). This primarily includes Canadian
dollar transactions at the parent company and US dollar transactions at our self-sustaining subsidiaries.



Our objective in managing foreign currency risk is to minimize
our net exposures to foreign currency cash flows by converting cash balances into foreign currencies to the extent practical to
match other foreign currency obligations. Our foreign exchange risk management program includes the potential use of foreign exchange
currency forward contracts to fix the exchange rates on short-term Canadian dollar, euro and US dollar denominated transactions
and commitments.



Interest rate risk



Interest rate risk arises because of the fluctuation in market
interest rates. We are subject to interest rate risk on our cash and cash equivalents, restricted cash and short-term investments,
and variable rate long-term debt.







FORM 20-FPage 42


Hydrogenics Corporation


Liquidity risk



Liquidity risk arises from our general funding needs and in the
management of our assets, liabilities and optimal capital structure. We manage liquidity risk to maintain sufficient liquid financial
resources to fund our commitments and obligations in the most cost-effective manner possible.



We have sustained losses and negative cash flows from operations
since our inception. At December 31, 2016, we had approximately $11.3 million of cash and cash equivalents and restricted cash.
The Company monitors its financial position on a monthly basis at minimum, and updates its expected use of cash resources based
on the latest available data. Such forecasting takes into consideration the Company’s financing plans and compliance with
internal targets.



There are uncertainties related to the timing and use of our cash
resources and working capital requirements. These uncertainties include, among other things, the timing and volume of commercial
sales and associated gross margin of our existing products and the development of markets for, and customer acceptance of, new
products. Throughout 2017, we do not expect our operations to generate sufficient cash flow to fund our obligations as they come
due. As such, these obligations will be funded out of existing and forecasted cash resources to the extent possible.



We may need to take additional measures to increase its liquidity
and capital resources, including obtaining additional debt or equity financing, pursuing joint-venture partnerships, equipment
financings or other receivables financing arrangements. We may experience difficulty in obtaining satisfactory financing terms.
Failure to obtain adequate financing on satisfactory terms could have a material adverse effect on Hydrogenics’ results
of operations or financial condition.



Commitments



The following table of our material contractual obligations at
December 31, 2016, sets forth the aggregate effect these obligations are expected to have on our cash flows for the periods indicated:



|(Thousands of US dollars) |  |                  |       |  |                      |  
|------------------------- |  | ---------------- | ----- |  | -------------------- | -
|Payments due in           |  | Operating Leases |       |  | Purchase Obligations |  
|2017                      |  | $                | 1,013 |  |                      | $
|2018                      |  |                  | 821   |  |                      |  
|2019                      |  |                  | 512   |  |                      |  
|2020                      |  |                  | 427   |  |                      |  
|2021 and thereafter       |  |                  | 292   |  |                      |  
|                          |  | $                | 3,065 |  |                      | $



We do not have any material obligations under forward foreign exchange
contract, guarantee contracts, retained or contingent interest in transferred assets, outstanding derivative instruments or non-consolidated
variable interests.



Our treasury policy is to invest in high-yield monetary interest
to maximize yield and safeguard capital to fund our operating requirements.



RESEARCH AND DEVELOPMENT



For information regarding our research and development policies
and expenses, see “Item 5. Operating and Financial Review and Prospects – Operating Results.”



TREND INFORMATION



Current Market Environment



Our strategy is to profitably grow hydrogen energy solutions for
diverse applications globally. We continue to leverage the milestones and reference sites established in 2016 and prior years
to gain additional traction in the following target markets and applications:









FORM 20-FPage 43


Hydrogenics Corporation


Motive Power – We achieved a key milestone in 2016
with delivery of the first pre-commercial units for the Company’s ten year commuter train propulsion system contract with
Alstom Transport, which at €50 million is the largest order in our history. This order highlights the commercial maturity
and strong competitive positioning of our fuel cell technology. These pre-commercial units will be field tested over the first
quarter of 2017 and it is expected that commercial production will begin in late 2017. Also, in the third quarter of 2016, Alstom
Transport highlighted the hydrogen power train at the Innotrans rail show in Berlin which generated additional interest on the
part of end customers.



Our China strategy began to show results in 2016 with significant
orders and revenue received from several of our key integrators (those companies that take our fuel cell and incorporate it into
buses and other vehicles provided by original equipment manufacturers. Our backlog and sales pipeline is strong in this area with
further orders expected in future quarters. We also anticipate further opportunity for our heavy duty fuel cell modules in other
propulsion applications in the near future.



Stationary Power – We continue to work with our partner
Kolon in South Korea to evaluate future growth opportunities in stationary power applications in Korea. The success of the pilot
plant provides the potential opportunity to scale into multiple multi-megawatt installations throughout South Korea. The pilot
plant is in the process of being moved to a new location in South Korea and we are currently in ongoing discussions with Kolon
and power plant operators and expect further announcements in due course.



Energy Storage – In 2016 we commissioned our second
Power-to-Gas facility with E.ON. This milestone firmly establishes the commercial scale building block for many multi megawatts
facilities in the future. Currently we have a pipeline of approximately 70 megawatts of qualified leads worth in excess of $70
million. Conversion of these qualified leads into sales orders is dependent on completion of competitive process, funding, and
policy evolution in the European Union. We are now constructing our two megawatt power to gas project in the Greater Toronto Area
in partnership with Enbridge. When complete 2017, this will become our first North American reference site for Power-to-Gas.



We are experiencing a willingness on the part of utilities and
regulatory agencies to increase spending in the growing problem areas related to energy storage and grid stabilization and our
pipeline remains robust in this area. We are also seeing a gradual maturation around the regulatory framework needed to integrate
energy storage into an overall energy framework to permit its cost effective rollout. In addition, we continue to witness governments
in many jurisdictions showing a willingness to increase spending on alternative energy projects for the same purpose. We believe
we are well positioned to benefit from government initiatives in Canada, the European Union (particularly in Germany) and the
United States (particularly in California), which we expect will positively impact our business. Recently, an increase in interest
in our power-to-gas application and orders for energy storage and fueling stations in Europe, California, the UK and other geographies
has signaled what we believe could be a significant increase in opportunities in the markets we serve.



Hydrogen Fueling – The movement to hydrogen powered
buses, trains, trucks and automobiles has created demand for fueling infrastructure in the markets where these vehicles are being
launched (principally Europe, China, Japan, Korea & California). We have been involved with the construction of over 50 fueling
stations globally and see increased demand for hydrogen fueling, especially when it can be linked to electrolyzed hydrogen coming
from electricity that is generated from renewable sources such as wind and solar energy thus reducing the carbon footprint of
the production of hydrogen.



Delivery Outlook & Trend Information



We operate in various markets and in this MD&A, define the
market in which we have a product offering, as a relevant market. Our delivery outlook is segmented by relevant market and is
subject to a number of factors that are within our control, such as product development and market engagement initiatives, as
well as a number of factors beyond our control, such as macroeconomic conditions. As part of our annual business planning cycle,
we make a number of assumptions regarding delivery outlook in each of our relevant markets in order to best allocate our resources.



Set forth below is a summary assessment of those factors we anticipate
will most significantly influence deliveries by relevant market as well as our anticipated level of deliveries by relevant market.
We caution that readers should not place undue reliance on this assessment and refer to our forward-looking statement on Section
17 of our MD&A.



FORM 20-FPage 44


Hydrogenics Corporation




|Relevant Market                                     | Economic Activity in 2016                                                                                        | External and Corporate Specific Considerations                                                                                                                                                                                                                                    | Anticipated Economic Activity in 2017                                   
|--------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------
|Industrial Gas                                      | Revenues and orders delivered were lower than in 2015.                                                           | We continue to experience the impact of economic uncertainty in many of the markets
    where we have leadership in industrial gas (notably Russia and the Eurozone region).                                                                                                      | We anticipate revenues and orders delivered will be higher than in 2016.
|Hydrogen Fueling Stations                           | Revenues and orders delivered were consistent with 2015.                                                         | Governments continue to support programs to accelerate the use of hydrogen fueling
    stations. Automobile companies have also announced increased production levels of hydrogen fuel cell vehicles.  We
    are continuing to dedicate resources to secure additional business. | We anticipate revenues and orders delivered will be higher than in 2016.
|Motive/Mobile Power                                 | Revenues and orders delivered were higher than in 2015 (excluding the impact of
    the Alstom Transport order). | We expect the Chinese bus market will continue to grow and the commercial production
    of Alstom Transport commercial rail car fuel cell production will commence in 2017.                                                                                                      | We anticipate revenues and orders delivered will be higher than in 2016.
|Energy Storage, Power to Gas and Ancillary Services | Revenues and orders delivered were lower than in 2015.                                                           | Our Toronto area Enbridge Power-to-Gas facility will go-live in 2017 resulting
    in the first North American reference site for Power-to-Gas.                                                                                                                                   | We anticipate revenues and orders delivered will be higher than in 2016.
|Stationary Power and Other Power Products           | Progression and completion of anticipated milestones in custom projects.                                         | Our expertise on custom engineering projects is well regarded by end-users. We
    continue to target custom engineering projects on a case by case basis.                                                                                                                        | We anticipate revenues and orders delivered will be higher than in 2016.



Outlook Summary



The timing and full realization of the opportunities above, under
the current market environment, cannot be assured or specifically established. It is however important to understand the magnitude
of these opportunities and the transformative impact that any one of them will have on the business going forward.



Over the past few years, we have taken significant steps to reduce
operating and product costs, streamline our operations and strengthen our consolidated financial position. While we may see volatility
in our costs over the short-term, our expectations for the long-term are that our trend of improved cost efficiency will continue.
At December 31, 2016, our order backlog was $106.6 million (December 31, 2015 – $93.3 million) spread across numerous geographical
regions, of which $38.1 million is expected to be recorded as revenue in the next 12 months.



As a global company, we are subject to the risks arising from adverse
changes in global economic and political conditions. Economic conditions in leading and emerging economies have been, and remain,
unpredictable. In particular, currency fluctuations could have the impact of significantly reducing revenue and gross margin as
well as the competitive positioning of our product portfolio. These macroeconomic and geopolitical changes could result in our
current or potential customers reducing purchases or delaying shipment which could cause revenue recognition on these products
to shift into 2018 or beyond.









FORM 20-FPage 45


Hydrogenics Corporation




OFF-BALANCE SHEET ARRANGEMENTS



Contingent Off-balance Sheet Arrangements



We do not have any material obligations under forward foreign exchange
contracts, guarantee contracts, retained or contingent interests in transferred assets, outstanding derivative instruments or
non-consolidated variable interests. Our forward foreign exchange contracts have been accounted for as financial instruments in
our consolidated financial statements.



We have entered into indemnification agreements with our current
and former directors and officers to indemnify them, to the extent permitted by law, against any and all charges, costs, expenses,
and amounts paid in settlement and damages incurred as a result of any lawsuit or any other judicial, administrative or investigative
proceeding in which they are involved as a result of their services. Any such indemnification claims will be subject to any statutory
or other legal limitation periods. The nature of the indemnification agreements prevents us from making a reasonable estimate
of the maximum potential amount we could be required to pay to counterparties. We have purchased directors’ and officers’
liability insurance. No amount has been recorded in the consolidated financial statements with respect to these indemnification
agreements, as we are not aware of any claims.



In the normal course of operations, we may provide indemnification
agreements, other than those listed above, to counterparties that would require us to compensate them for costs incurred as a
result of changes in laws and regulations or as a result of litigation claims or statutory sanctions that may be suffered by the
counterparty as a consequence of the transaction. The terms of these indemnification agreements will vary. The nature of the indemnification
agreements prevents us from making a reasonable estimate of the maximum potential amount we could be required to pay to counterparties.
No amount has been recorded in the consolidated financial statements with respect to these indemnification agreements, as we are
not aware of any claims.









FORM 20-FPage 46


Hydrogenics Corporation




|ITEM 6. |  | DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
|------- |  | ------------------------------------------



Directors and Senior Management



Directors

The following table sets forth information with
respect to our directors as of March 8, 2017:



|Name and Provinceor State and Countryof Residence |  | Title                                              |  | Director orExecutive Officer Since
|------------------------------------------------- |  | -------------------------------------------------- |  | ----------------------------------
|Douglas Alexander (1)Ontario, Canada              |  | Chairman of our Board of Directors                 |  | 2006                              
|                                                  |  |                                                    |  |                                   
|Michael Cardiff (1) Ontario, Canada               |  | Director                                           |  | 2007                              
|                                                  |  |                                                    |  |                                   
|Joseph CargnelliOntario, Canada                   |  | Chief Technology Officer and Director              |  | 1996                              
|                                                  |  |                                                    |  |                                   
|Sara Elford, (1)
        British Columbia, Canada |  | Director                                           |  | 2016                              
|                                                  |  |                                                    |  |                                   
|David C. Ferguson (3) (4)Ontario, Canada          |  | Director                                           |  | 2014                              
|                                                  |  |                                                    |  |                                   
|Donald Lowry (2) (5)
        Alberta, Canada      |  | Director                                           |  | 2000 – 2007
        2013          
|                                                  |  |                                                    |  |                                   
|Daryl WilsonOntario, Canada                       |  | President and Chief Executive Officer and Director |  | 2006                              







Notes:



|1. |  | Member of the Audit Committee and the Human Resources
    and Corporate Governance Committee.
|-- |  | ---------------------------------------------------------------------------------------------
|2. |  | Chairman of the Human Resources and Corporate Governance Committee.                          
|3. |  | Member of the Human Resources and Corporate Governance Committee.                            
|4. |  | Chairman of the Audit Committee.                                                             
|5. |  | Member of the Audit Committee.                                                               



Each director will hold office until the next
annual and special meeting of shareholders, or until his successor is duly elected or appointed.



Douglas S. Alexander, Chairman of our Board of Directors.Mr. Alexander joined our Board of Directors in May 2006 and has served as Chairman of our Board of Directors since May
2009. Mr. Alexander is a Chairman of the Board of Directors of Equitable Life Insurance Company, a Director and member of the
Audit Committee of Critical Outcome Technologies Inc. and has served as the Chief Financial Officer of various Canadian public
companies for 15 years. Mr. Alexander served as a director of Stuart Energy from 2003 to January 2005 and served as a director
on Biorem Technologies Inc. from 2010 to 2012. From 1999 to 2004, Mr. Alexander was Executive Vice President and Chief Financial
Officer of Trojan Technologies Inc., an international environmental high technology company. Mr. Alexander’s financial expertise
and corporate experience, including responsibility for the Human Resources function while at Trojan Technologies Inc., in addition
to his extensive knowledge of the business, assist him in assessing appropriate executive compensation based on the Company’s
performance. Mr. Alexander is a Chartered Professional Accountant and is a member of the Institute of Chartered Accountants in
Scotland and Ontario. He is also a Chartered Director, having graduated from the Director’s College, a joint venture between
McMaster University and the Conference Board of Canada. Mr. Alexander resides in Ontario, Canada.





FORM 20-FPage 47


Hydrogenics Corporation




Michael Cardiff, Director.Mr. Cardiff joined our
Board of Directors in November 2007. He was most recently Global Senior Vice President for the Office of the CFO Business Unit
at INFOR, a $3 billion revenue software company. His business unit included software for financials, payroll, human resources,
performance management, business intelligence, planning and forecasting, compliance and risk management. Prior to holding that
position, Mr. Cardiff held numerous senior positions in a number of technology companies, including large multinationals such
as EDS, SAP and IBM, as well as startup companies such as Fincentric, Convergent Technologies, Tandem, and Stratus Computer. Mr.
Cardiff is currently also a director of Aterna Zentaris and Startech.Com. Mr. Cardiff
has also served as a director of other publicly traded companies, including Husky Injection Molding, Descartes Systems
Group, Visible Genetics and Burntsand Inc. He has also been a director of private companies, including Solcorp, Spectra Security
Software and Visible Decisions and not-for-profit organizations such as The Toronto International Film Festival, Roy Thomson Hall
and Medic Alert Foundation. Mr. Cardiff holds the ICD.D designation from the Institute of Corporate Directors. Mr. Cardiff has
also been recognized with a Canadian export Lifetime Achievement Award as well as one of Canada’s Top 40 under 40. Mr. Cardiff
is a member of, and holds the ICD.d designation from the Institute of Corporate Directors. Mr. Cardiff resides in Ontario, Canada.



Joseph Cargnelli, Chief Technology Officer and Director.Mr. Cargnelli is one of our founders and served as a director from January 1996 to January 2005, when he resigned in connection
with the closing of the Stuart Energy acquisition. Mr. Cargnelli was re-elected at the meeting of shareholders on May 17, 2005.
Mr. Cargnelli served as our Treasurer from January 1996 until July 2000. Mr. Cargnelli was appointed as our Vice President,
Technology in July 2000. His title was changed to Chief Technology Officer in April 2003 and he continues to serve in that capacity.
Mr. Cargnelli earned both a Masters of Applied Science degree in Mechanical Engineering and a Bachelor of Applied Science
degree in Mechanical Engineering from the University of Toronto. From April 1992 to April 1993, Mr. Cargnelli served as a
Research Engineer with the Laboratory of Advanced Concepts in Energy Conversion Inc., a laboratory engaged in the research, development
and demonstration of alkaline fuel cells and hydrogen storage methods. Mr. Cargnelli is a member of the Professional Engineers
of Ontario. Mr. Cargnelli resides in Ontario, Canada.





Sara Elford, Director.Ms. Elford was appointed to
the Board of Directors in January 2016. Ms. Elford is a corporate director. Prior to that, Ms. Elford was a sell-side equity research
analyst with Canaccord Genuity, with over 20 years of experience in the capital markets industry. Over the course of her analyst
career, Ms. Elford followed a broad range of industries and business models, with a specific, but not exclusive, focus on emerging
companies, technologies and/or sectors. According to Thomson Reuters Starmine, she was named in the top two for stock picking
in her sector six times since 2003, and in 2005 she was named the top stock picker in Canada across all sectors and analysts.
Ms. Elford has been a CFA Charterholder since 1997 and completed the academic requirements for the directors’ education
program with the ICD in 2015. She is currently a member of the FTSE Environmental Markets Committee and is also a member of the
Board of Directors of Carmanah Technologies and Pure Technologies. She is a graduate of Bishop’s University in Quebec. Ms.
Elford resides in British Columbia, Canada.



David C. Ferguson, Director.Mr. Ferguson was appointed
to the Board of Directors in October 2014. Mr. Ferguson was Executive Managing Director and Chief Financial Officer of BMO Capital
Markets and was a member of the Board of Directors of BMO Nesbitt Burns between 1999 and 2012.  Prior to 1999, he had a 25
year career at KPMG including 16 years as an audit partner in the Toronto office serving major clients in the manufacturing, mining,
and financial services sectors.  Mr. Ferguson is a member of the Board of Directors of GMP Capital Inc. where he serves as
Chair of the Audit Committee and a member of the Governance Committee. He also serves on the Boards of Directors and chairs the
Audit Committees of two private companies, Antares Holdings GP, Inc. and Highland Therapeutics Inc.  Mr. Ferguson is the
former President and Chair of the Board of Directors of the Canadian Opera Company, one of Canada’s leading performing arts
organizations.  Mr. Ferguson is a Fellow of the Institute of Chartered Professional Accountants of Ontario, and member of
the Institute of Corporate Directors.  Mr. Ferguson received Bachelor of Commerce and Master of Business Administration degrees
from the University of Toronto. Mr. Ferguson resides in Ontario, Canada.



Don Lowry, Director.Mr. Lowry
was appointed to the Board of Directors in January 2013. After 16 years, Don Lowry stepped down from the position of President
& CEO of EPCOR Utilities in March of 2013 to focus on corporate board work and to serve on local community boards and associations.
Prior to joining EPCOR, Don spent more than 20 years in the telecommunications industry. He was President and Chief Operating
Officer of Telus Communications Inc. and Chair of Alta Telecom. Don is currently non-executive Chair of Capital Power and served
as non-executive Chair of Canadian Oil Sands from 2009 to 2016. As well, he serves as a director of Stantec and Melcor REIT. Don
earned his ICD.D designation from the Rotman School of business. He was the Chair of the 2014-2016 Edmonton World Triathalon.
In 2013 he established the Don and Norine Lowry, Women of Excellence annual scholarship for Edmonton women pursuing their post-secondary
education in Edmonton. In 2010 Don was recognized as Alberta Venture’s Business Person of the Year; and was the Alberta
Chamber of Resources’ Resource Person of the year in 2014. Don holds a B.Comm. (Honours) and an MBA from the University
of Manitoba. He is also a graduate of the Harvard Advanced Management Program and the Banff School of Management. Mr. Lowry was
previously a Board member at Hydrogenics from 2000-2007. Mr. Lowry resides in Alberta, Canada.



FORM 20-FPage 48


Hydrogenics Corporation




Daryl Wilson, President and Chief Executive Officer and Director.Mr. Wilson was appointed President and Chief Executive Officer in December 2006. Prior to joining Hydrogenics, Mr. Wilson
held senior leadership positions at Royal Group Technologies Inc., ZENON Environmental Inc., TOYOTA and DOFASCO Inc. Mr. Wilson
is a Director of ATS Automation Tooling Systems Inc. In 1990, Mr. Wilson earned an MBA from McMaster University in Operations
Management/Management Science. Mr. Wilson is a Professional engineer and holds a Bachelor’s degree in Chemical Engineering
from the University of Toronto. Mr. Wilson is a Chartered Director (C.Dir), having graduated in 2009 from Director’s College.
Mr. Wilson resides in Ontario, Canada.



Executive Officers



The following table sets forth information with
respect to our executive officers as of March 8, 2017:





|Name and Provinceor State and Countryof Residence |  | Title                                              |  | Director orExecutive Officer Since
|------------------------------------------------- |  | -------------------------------------------------- |  | ----------------------------------
|Joseph CargnelliOntario, Canada                   |  | Chief Technology Officer and Director              |  | 1996                              
|                                                  |  |                                                    |  |                                   
|Daryl WilsonOntario, Canada                       |  | President and Chief Executive Officer and Director |  | 2006                              
|                                                  |  |                                                    |  |                                   
|Robert MotzOntario, Canada                        |  | Chief Financial Officer and Corporate Secretary    |  | 2012                              
|                                                  |  |                                                    |  |                                   
|Wido WestbroekOntario, Canada                     |  | Vice President Sales and Marketing                 |  | 2011(2)                           
|                                                  |  |                                                    |  |                                   
|Filip SmeetsHasselt, Belgium                      |  | General Manager, OnSite Generation                 |  | 2011                              



| | (1) | Prior to Mr. Westbroek’s
                                         appointment as Vice President Sales and Marketing, he was the Vice President and General
                                         Manager, OnSite Generation
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Robert Motz, Chief Financial Officer and Corporate Secretary. Mr. Motz joined us in 2012 in his current capacity
of Chief Financial Officer and Corporate Secretary. Mr. Motz was previously Chief Financial Officer and then Chief Executive Officer
of Aeroquest International Limited from 2008-2012 (at the time a Toronto Stock Exchange (“TSX”) listed company). Prior
to his role at Aeroquest, Mr. Motz served in a senior financial leadership role at Agility Logistics, Co., AMJ Campbell Inc. and
Motorola Canada Limited. Mr. Motz is a Chartered Accountant and a Chartered Professional Accountant having received his designation
in 1987.





FORM 20-FPage 49


Hydrogenics Corporation




Wido Westbroek, Vice President Sales and
Marketing. Mr. Westbroek joined us in 2006 as Vice President, Operations of the Belgium OnSite Generation business
and subsequently appointed as Vice President and General Manager for Hydrogenics Europe n.v. in 2007.  Mr. Westbroek was
appointed to his current position effective August 1st, 2011. His former career, spanning 18 years, was with Powerlasers, a developer
and manufacturer of unique laser welding technology and a maker of auto parts for major automotive OEMs based in Canada and the
U.S. Mr. Westbroek received his Bachelor of Science in Physics at the University of Waterloo in Ontario.



Filip Smeets, General Manager, OnSite Generation.
Mr. Smeets joined us in 2011 as General Manager of the Belgian based OnSite Generation business. Mr. Smeets was previously a General
Manager with Cabot Corporation, a global performance materials company, headquartered in Boston, Massachusetts USA. During his
12 years tenure at Cabot Corporation, Mr. Smeets held increasingly responsible positions in marketing and business leadership.
Mr. Smeets received his Master's degree in Chemistry from the University of Antwerp, located in Belgium.



For information regarding the backgrounds of
Mr. Cargnelli and Mr. Wilson, see “Directors” above.

COMPENSATION



As the Company reports its financial results in U.S.
dollars, the following discussion is prepared showing U.S. dollars, except as otherwise noted, notwithstanding that the currencies
in which the Named Executive Officers (as defined below) are paid in Canadian dollars and euro. The average exchange rates for
the year ended December 31, 2016, for the purposes of the following disclosure, are US$1 = CA$1.3227, and US$1 = 0.9081 euro,
as reported by the Bank of Canada. The exchange rates as at December 31, 2016, for the purposes of the following disclosure, are
US$1 = CA$1.3426, and US$1 = 0.9476 euro, as reported by the Bank of Canada.



The following compensation discussion and analysis
is intended to supplement the more detailed information concerning compensation of executive officers and directors that appears
in the tables that follow. Our goal is to provide a better understanding of our compensation practices and decisions made concerning
the compensation payable to our executive officers and directors for 2016.





Elements of Executive Compensation Program



Our executive compensation program has three
principal components: base salary; short-term incentive (paid in cash); and long-term, equity based incentives.



We believe this variable compensation encourages high
performance, promotes accountability and ensures that the interests of our executive officers are aligned with the interests of
shareholders by linking individual performance and increases in shareholder value. Each of the components’ specified objectives
are set forth below.



The Company also offers all employees and Named Executive
Officers certain benefits, such as short-term disability income benefits, long-term disability income benefits, healthcare, dental
care, survivor benefits, dependent coverage, employee life insurance, dependent life insurance, accidental death, dismemberment
and specific loss insurance, which form an integral part of the total compensation offered by the Company.



Base Salary



The objectives of base salary are to recognize market
pay, acknowledge competencies and skills of individuals and reward individual contribution. The annual base salary for each of
our Named Executive Officers was initially determined at the time of hire based on a number of customary factors, and is documented
in an employment agreement provided to the executive officer (see also “Summary Compensation Table ― Employment Agreements”).



Short-term Incentives



We provide a short-term incentive plan in which the Named Executive
Officers, as well as other managers and employees, participate. This incentive plan is intended to reward achievement of short-term
financial performance objectives and milestones and focus on key financial, strategic and other business objectives. Pursuant
to the short-term incentive plan, we have established layers of performance incentives up to certain percentages of base salary
based on market benchmarking. In landmark years, the committee may elect to award a “stretch maximum” of 100% of base
salary. The percentage that an executive is awarded is based on the achievement of corporate objectives, the achievement of business
unit objectives and the achievement of individual objectives is determined by the Human Resources and Corporate Governance Committee.
Certain Named Executive Officers have employment agreements with us that modify our short-term incentive compensation (see “Summary
Compensation Table ― Employment Agreements”).





FORM 20-FPage 50


Hydrogenics Corporation




For 2016, the target bonuses were equal to 50% of base salary for
each of President and Chief Executive Officer, Chief Financial Officer and Corporate Secretary, and Chief Technology Officer,
and 100% of base salary for the Vice President Sales and Marketing, and up to €35,000 for the General Manager, OnSite Generation.



Long-term Incentives



Long-term compensation is designed to focus executives’ attention
on the long-term interests of the Company and its shareholders. In 2012, the Company implemented a new Omnibus Plan which was
approved by shareholders at the 2012 Annual and Special Meeting held on May 7, 2012. A maximum of 1,002,490 Shares are available
for issuance under the Omnibus Plan, representing 10% of the Company’s issued and outstanding Shares at that time. All employees,
consultants and non-employee directors of the Company and any affiliate of the Company (if designated by the Board of Directors)
are eligible to participate in the Omnibus Plan.



The evolution of the employment marketplace has contributed to
the continuing development of innovative compensation practices involving several alternative forms of equity-based incentives.
In view of these developments, the Omnibus Plan that permits the grant of stock options and Share Units settled in Shares provides
the Company with a flexible and dynamic long-term incentive compensation structure that: (i) allows for the implementation of
potential performance vesting conditions; (ii) removes the link between stock option awards and short-term performance; and (iii)
eliminates the requirement for cash settlement under the previous RSU plan, thereby eliminating both cash flow and earnings volatility
resulting from the former plan.





Prior to the adoption of the Omnibus Plan in 2012, the Company
had an Old Option Plan and an old restricted share unit plan (“Old RSU Plan”). Upon the adoption of the Omnibus Plan,
grants under these plans have now been frozen and no further grants or awards will be made under such plans. However, the Old
Option Plan and the Old RSU Plan will continue in effect for so long as and solely to the extent necessary to administer previously-granted
awards that remain outstanding under such plans. The Old RSU Plan is no longer in effect as there are no longer any awards outstanding
under such plan. See “Long-Term Incentives – Periods Prior to 2012” below for a description of the Old Option
Plan.



Stock Options



Under the Omnibus Plan, the Board may grant stock options to any
eligible participant at any time. The exercise price for stock options will be determined by the Board, but may not be less than
the fair market value of a Share (being the closing price of Shares on the TSX on the last trading day on which the Company’s
Shares were traded occurring immediately prior to the applicable date, or if the Shares are not then traded on the TSX, as determined
by the Board in its discretion) (the “Market Value”) on the date the stock option is granted, except in circumstances
where the stock option is granted in exchange for another stock option, subject to TSX approval if required.



Stock options will vest and become exercisable as to one third
of the stock option on each anniversary of the date of grant for the three years following the date of grant, unless otherwise
specified in a participant’s option agreement.



Stock options must be exercised within a period fixed by the Board
that may not exceed ten years from the date of grant, except in a case where the expiry period falls during a blackout period,
in which case the expiry period will be automatically extended until ten business days after the end of the blackout period. The
Omnibus Plan also provides for earlier termination of stock options on the occurrence of certain events, including but not limited
to, termination of a participant’s employment.





FORM 20-FPage 51


Hydrogenics Corporation




Under the Omnibus Plan, if an option holder’s employment
or term as a director or consultant ceases as a result of the option holder’s death, retirement or disability or because
of the sale of the company that employs the option holder, or to which the option holder is a director or consultant, all options
vest immediately and may be exercised for 180 days (or, if earlier, to the end of the term). If an option holder’s employment
or term as a director or consultant is terminated without cause, the option holder’s options that are vested or that would
otherwise have vested within the reasonable or contractual notice period may be exercised for 90 days (or, if earlier, to the
end of the term). If an option holder’s employment or term as a director or consultant is terminated by voluntary resignation,
vested options may be exercised for 90 days (or, if earlier, to the end of the term) and unvested options are cancelled. If an
option holder’s employment or term as a director or consultant is terminated for cause, all options are immediately cancelled.
Notwithstanding the foregoing, but subject to applicable securities laws, the Board may, at its discretion, permit the exercise
of any or all options held by an option holder in the manner and on the terms authorized by the Board, provided the Board may
not authorize the exercise of an option beyond ten years from the date of grant, excluding any automatic extension for an expiry
date that falls in a blackout period.



Share Units



The Board may grant Share Units under the Omnibus Plan to any eligible
participant (other than non-employee directors) at any time. The terms and conditions of grants of Share Units, including the
quantity, type of award, award date, vesting conditions, applicable vesting periods and other terms and conditions with respect
to the award, as determined by the Board, will be set out in such participant’s RSU agreement or PSU agreement, as applicable.





Accounts will be maintained for each participant and each notional
grant of Share Units, as granted to such participant from time to time, will be credited to such participant’s account.
Share Units that fail to vest with respect to a participant or that are paid out to the participant are cancelled and will be
removed from such participant’s account.



Upon the vesting and settlement of a Share Unit, the number of
Shares covered by the Share Unit will be issued from treasury by the Company as fully paid non-assessable Shares, valued at not
less than the Market Value as at the date of issuance (the “Issue Date”). If a participant gives notice to the Company,
on or before the Issue Date, of its election to receive cash pertaining to a Share Unit, the Company, with the approval of the
Board, may agree to pay an amount in cash equal to the aggregate Market Value of the Shares to be issued in place of issuing to
the participant Shares under the Share Unit.



In the case of PSUs, if the performance-related conditions in respect
of the vesting of Share Units determined by the Board at the time of granting the award (the “Performance Vesting Conditions”)
with respect to a fiscal year are not met during such fiscal year (the “Shortfall Year”), the PSUs which were scheduled
to vest at the end of such Shortfall Year may vest in future years, so long as in such subsequent year the Performance Vesting
Conditions for such subsequent year are equal to or greater than the cumulative aggregate Performance Vesting Conditions for the
Shortfall Year and subsequent year. Performance Vesting Conditions may include but are not limited to, financial or operational
performance of the Company, total shareholder return, individual performance criteria or otherwise, which may be measured over
a specified period.



If a participant’s employment is terminated for cause or
the participant ceases to be a director or consultant on a similar basis, the participant forfeits all rights, title and interest
in all of his or her awards, whether vested or unvested at the date of termination.



FORM 20-FPage 52


Hydrogenics Corporation




If a participant’s employment is terminated without cause,
the participant resigns because he or she has been constructively dismissed, or the participant ceases to be a director or consultant
on a similar basis then: (i) all of the participant’s stock options which would have vested during the period of contractual
or reasonable notice of termination of employment, as applicable, will vest and all such vested stock options may be exercised
until the earlier of their expiry date or 90 days after the date of termination, after which time all stock options expire; (ii)
subject to the Board of Directors’ approval, a pro rata portion of the participant’s RSUs that are scheduled to vest
on the next scheduled vesting date will vest, based on the number of days that have elapsed between the award date and the date
of termination, and such RSUs will be settled on the next scheduled vesting date; and (iii) any PSUs standing to the credit of
such participant will continue to vest (and be settled) in the normal course for a period of 90 days extending from the end of
the fiscal year in which the date of termination occurs (the “90 Day Period”). Subject to the Board of Directors’
approval, any PSUs which do not vest in the normal course during the 90 Day Period will vest pro rata upon the date of termination
to take into account only the period that has elapsed between the award date and the date of termination, provided the Performance
Vesting Conditions are satisfied in respect of the applicable performance period in which the date of termination occurs.



The Board of Directors can accelerate the vesting and termination
of stock options on a change of control of the Company. The Board of Directors can also take action to preserve economic interests
of a participant holding PSUs and RSUs in the event of a change of control of the Company, including ensuring the successor can
assume or substitute the awards, or the Board of Directors can accelerate the vesting and settlement of the awards.



The Omnibus Plan is also subject to the following limitations:
(i) no more than 10% of the Company’s outstanding Shares may be issued under the Omnibus Plan or pursuant to any other security-based
compensation arrangements of the Company during any one year period; (ii) no more than 5% of the Company’s outstanding Shares
may be issued under the Omnibus Plan or pursuant to any other security-based compensation arrangements of the Company to any one
person; and (iii) no more than 10% of the Company’s outstanding Shares may be issued to insiders under the Omnibus Plan
or under any other security-based compensation arrangements of the Company within any one year period or be issuable to insiders
at any time. In addition, with respect to stock options, no more than 1% of the Company’s outstanding Shares during the
term of the Omnibus Plan may be granted to directors, in the aggregate, and the annual value of stock options granted to directors
(based on the binomial award value) cannot exceed CA $100,000 per director.





Shareholder approval is required for the following amendments to
the Omnibus Plan: (i) increasing the number of Shares reserved for issuance under the Omnibus Plan; (ii) reducing the exercise
price of a stock option, except pursuant to the terms of the Omnibus Plan; (iii) extending the expiry date of an award, except
the automatic extension of an award pursuant to the terms of the Omnibus Plan; (iv) extending the participation in the Omnibus
Plan of non-employee directors and non-consultants; (v) permitting awards to be transferred other than by testate or intestate
succession; (vi) permitting the addition or modification of a cashless exercise feature, payable in cash or Shares, unless it
provides for a full deduction of the number of underlying Shares from the Omnibus Plan reserve; (vii) permitting awards, other
than those permissible under the Omnibus Plan; or (viii) amendments that require shareholder approval under applicable law (including
applicable rules of the TSX).



The Board of Directors may amend, suspend or terminate the Omnibus
Plan, or any portion thereof, at any time, subject to those provisions of applicable law (including, without limitation, the applicable
rules, regulations and policies of any exchange) that require the approval of shareholders or any governmental or regulatory body.
By way of example, amendments that do not require Shareholder approval and that are within the authority of the Board of Directors
include but are not limited to: (i) minor changes of a “housekeeping nature”; (ii) amendments for the purpose of curing
any ambiguity, error or omission in the Omnibus Plan or to correct or supplement any provision of the Omnibus Plan that is inconsistent
with any other provision of the Omnibus Plan; (iii) amendments which are necessary to comply with applicable law or the requirements
of any stock exchange on which the Shares are listed; (iv) amendments respecting administration and eligibility for participation
under the Omnibus Plan; (v) amendments to the vesting provisions of the Omnibus Plan or any award thereunder; and (vi) changes
to the termination provisions of an award or the Omnibus Plan which do not entail an extension beyond the original fixed term.



Except as required by law, stock options and Share Units awarded
under the Omnibus Plan are not capable of being anticipated, assigned, transferred, alienated, sold, encumbered, pledged, mortgaged
or charged.



FORM 20-FPage 53


Hydrogenics Corporation






As at February 28, 2017, the Company has the following securities
outstanding under the Omnibus Plan:





|Stock options                                              | 380,224
|---------------------------------------------------------- | -------
|PSUs                                                       | 195,569
|RSUs                                                       | 52,483 
|Total                                                      | 628,276
|Total
    as a percentage of Issued and Outstanding Shares | 5.0%   





An additional 373,793 Shares remain available for future issuance
pursuant to stock options or Share Unit grants under the Omnibus Plan, representing approximately 3.0% of the total number of issued
and outstanding Shares.





Long Term Incentives – periods prior to 2012



Prior to the adoption of the Omnibus Plan in 2012, the
Company had in place the Old Option Plan and the Old RSU Plan. Grants under these plans have now been frozen and no further grants
or awards will be made under such plans. However, the Old Option Plan and the Old RSU Plan will continue in effect for so long
as and solely to the extent necessary to administer previously-granted awards that remain outstanding under such plans.





As at February 28, 2017, the Company has 248,412 stock
options outstanding under the Old Option Plan. Since the Old Option Plan was adopted, options exercised resulted in the issuance
of 217,452 Shares as of February 28, 2017.







Under the Old Option Plan, if an option holder’s
employment or term as a director or consultant ceases as a result of the option holder’s death, retirement or disability
or because of the sale of the company that employs the option holder, or to which the option holder is a director or consultant,
all options vest immediately and may be exercised for 180 days (or, if earlier, to the end of the term). If an option holder’s
employment or term as a director or consultant is terminated without cause, the option holder’s options that are vested
or that would otherwise have vested within the reasonable or contractual notice period may be exercised for 90 days (or, if earlier,
to the end of the term). If an option holder’s employment or term as a director or consultant is terminated by voluntary
resignation, vested options may be exercised for 90 days (or, if earlier, to the end of the term) and unvested options are cancelled.
If an option holder’s employment or term as a director or consultant is terminated for cause, all options are immediately
cancelled. Notwithstanding the foregoing, but subject to applicable securities laws, the Board may, at its discretion, permit
the exercise of any or all options held by an option holder in the manner and on the terms authorized by the Board, provided the
Board may not authorize the exercise of an option beyond ten years from the date of grant, excluding any automatic extension for
an expiry date that falls in a blackout period.



Options under the Old Option Plan are non-transferable.
The Board of Directors has the discretion to accelerate vesting and expiration of options in connection with a change of control
of the Company, a sale of all or substantially all of the assets of the Company or a dissolution or liquidation of the Company.
The Board may further take such steps it deems equitable and appropriate to adjust the number of Shares that may be acquired on
the exercise of any options or the exercise price in the event the Company effects a subdivision or consolidation of the Shares,
payment of a stock dividend (other than in lieu of a cash dividend), or other change in capitalization of the Company, or upon
any amalgamation, continuation, reorganization involving the Company, by exchange of Shares, by sale or lease of assets or otherwise,
to preserve the proportionality of the rights and obligations of the option holders.



FORM 20-FPage 54


Hydrogenics Corporation




As noted above, the Old Option plan was superseded by
the Omnibus Plan and no further grants or awards will be made under such plan. However, the Old Option Plan will continue in effect
for so long as and solely to the extent necessary to administer previously-granted awards that remain outstanding under such plan.



Summary Compensation Table



The following table provides a summary of compensation earned during
the financial year ended December 31, 2016, by the Named Executive Officers.



|Name and Principal Position                                  | Salary(1) | Share Based Awards(2) | Option Based Awards(3) | Non-Equity Incentive Plan Compensation(4) | All Other Compensation(5) | Total Compensation
|------------------------------------------------------------ | --------- | --------------------- | ---------------------- | ----------------------------------------- | ------------------------- | ------------------
|                                                             | ($)       | ($)                   | ($)                    | ($)                                       | ($)                       | ($)               
|Daryl Wilson, President & Chief Executive Officer            | 359,945   | 239,210               | 192,364                | 108,507                                   | 1,890                     | 901,916           
|Robert Motz, Chief Financial Officer and Corporate Secretary | 199,493   | 132,583               | 106,615                | 60,138                                    | 2,079                     | 500,908           
|Joseph Cargnelli, Chief Technology Officer                   | 186,806   | 124,149               | 99,833                 | 56,314                                    | 1,890                     | 468,992           
|Wido Westbroek, Vice President, Sales and Marketing          | 170,653   | 56,704                | 45,600                 | 76,998                                    | 2,037                     | 351,992           
|Filip Smeets, General Manager, OnSite Generation             | 231,785   | -                     | -                      | 24,820                                    | -                         | 256,605           





Notes:



| | (1) | These amounts are paid in Canadian
                                         dollars, with the exception of the amount paid to Mr. Smeets, and have been converted
                                         to US dollars at the average rate for the year. The Canadian dollar depreciated 3.4%
                                         relative to the US dollar in 2016 compared to 2015. Mr. Smeets’ salary is paid
                                         in euro and has been converted to US Dollars at the average rate for the year. The US
                                         dollar appreciated 0.89% relative to the euro in 2016 compared to 2015.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (2) | This amount represents the RSUs granted
                                         during 2016 for the Named Executive Officers, which were valued at CA$10.53 respectively,
                                         per unit based on the market value at the date of grant, assuming 100% vesting. This
                                         valuation method for RSUs is consistent with the method used for financial reporting
                                         purposes. The RSU’s granted in 2016 vest over 3 years.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (3) | Stock options
                                         granted in fiscal year 2016 for the Named Executive Officers were valued at a weighted
                                         average value of CA$6.12. The stock options were valued using the Black-Scholes valuation
                                         module and is consistent to the method for used for financial reporting purposes. The
                                         following key assumptions and estimates were used for the Black-Scholes calculation.
                                         Risk-free interest rate (%) = 0.87%, Expected volatility (%) = 64.9%, Expected life years
                                         = 6, Expected dividend=nil].
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (4) | This represents
                                         the Company’s short-term incentive plan awards earned during the year but are payable
                                         at a later date. The Company does not have any non-equity long-term incentive plans.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (5) | These amounts
                                         represent the Company’s matching of Employee Group Registered Retirement Contributions
                                         to a maximum of CA$2,500
                                         per year. Perquisites did not exceed CA $50,000 or 10% of the total annual salary of
                                         any of the Named Executive Officers in 2016.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Employment
Agreements



Mr. Wilson’s employment agreement provides for a base salary
of CA$478,420 subject to annual review, and a discretionary short-term incentive bonus of up to 50% of his base salary.



Mr. Motz’s employment agreement provides for a base salary
of CA$265,157, subject to annual review, and a discretionary short-term incentive bonus of up to 50% of his base salary.





FORM 20-FPage 55


Hydrogenics Corporation




Mr. Cargnelli’s employment agreement provides for
a base salary of CA$248,293, subject to annual review, and a discretionary short-term incentive bonus of up to 50% of his base
salary.



Mr. Westbroek’s employment agreement provides for
a base salary of CA$226,823 subject to annual review, and a discretionary short-term incentive bonus of up to 100% of his base
salary.



Mr. Smeets’ employment agreement provides
for a base salary of €210,120 subject to annual review, and a discretionary short-term incentive bonus of up to €50,000
per year.





Incentive
Plan Awards



Outstanding
Share-based Awards and Option-based Awards During the Year EndedDecember 31, 2016



|                     | Option-Based
    Awards                                 | Share-Based
Awards                           
|-------------------- | ------------------------------------------------------- | ---------------------------------------------
|Name                 | Number
    of Securities Underlying Unexercised Options | Option
    Exercise Price                    
|                     | (#)                                                     | CA
    ($)                                   
|Daryl
    Wilson     | 76,806
        108,593
        24,595
        41,578    | 5.03
        6.25
        16.14
        10.53
|Robert
    Motz      | 39,476
        13,631
        23,044                    | 6.60
        16.14
        10.53             
|Joseph
    Cargnelli | 39,861
        24,639
        12.765
        21,578     | 5.03
        6.25
        16.14
        10.53
|Wido
    Westbroek   | 10,238
        24,639
        5,830
        9,856       | 5.03
        6.25
        16.14
        10.53
|Filip
    Smeets     | Nil                                                     | Nil                                          





FORM 20-FPage 56


Hydrogenics Corporation




Incentive Plan Awards - Value Vested or Earned During the Year Ended December 31, 2016



|Name                 | Option
    Based Awards -Value Vested During the Year | Share
    Based Awards -Value Vested During the Year | Non-equity
    Incentive Plan Compensation -Value Earned During the Year
|-------------------- | ----------------------------------------------------- | ---------------------------------------------------- | ------------------------------------------------------------------------
|                     | ($)                                                   | ($)                                                  | ($)                                                                     
|Daryl
    Wilson     | 80,087                                                | Nil                                                  | 108,507                                                                 
|Robert
    Motz      | -                                                     | Nil                                                  | 60,138                                                                  
|Joseph
    Cargnelli | 18,171                                                | Nil                                                  | 56,314                                                                  
|Wido
    Westbroek   | 18,171                                                | Nil                                                  | 76,998                                                                  
|Filip
    Smeets     | Nil                                                   | Nil                                                  | 24,820                                                                  





Compensation of Directors



Director
Compensation Table



The following table provides a summary of compensation
earned during the financial year ended December 31, 2016 by our directors.



|Name                     | FeesEarned | Share
BasedAwards | Option
    Based awards | Non-equity
    IncentivePlan Compensation | All
    OtherCompensation | Total  
|------------------------ | ---------- | ----------------- | ----------------------- | ----------------------------------------- | ------------------------- | -------
|                         | ($)        | ($)               | ($)                     | ($)                                       | ($)                       | ($)    
|Douglas
    S. Alexander | 75,000     | 40,000            | n/a                     | n/a                                       | Nil                       | 115,000
|Michael
    Cardiff      | 58,500     | 15,000            | n/a                     | n/a                                       | Nil                       | 73,500 
|Sara
    Elford          | 55,738     | 14,292            | n/a                     | n/a                                       | Nil                       | 70,030 
|David
    C. Ferguson    | 71,000     | 25,000            | n/a                     | n/a                                       | Nil                       | 96,000 
|Donald
    Lowry         | 53,200     | 38,300            | n/a                     | n/a                                       | Nil                       | 91,500 
|Total                    | 313,438    | 132,592           | n/a                     | n/a                                       | Nil                       | 446,030



For 2016, each of the directors who are considered “independent”
was paid an annual fee of $27,000 for his services inclusive of all meeting fees as a director. Each committee chair received
an annual fee of $34,000. The Chair of the Board was paid an annual fee of $75,000 for his services inclusive of all meeting fees.
All directors were reimbursed for travel and other reasonable expenses incurred in attending Board and committee meetings.



Deferred Share Units





Pursuant to the DSU Plan, independent directors are entitled
to elect to receive all or any portion of their annual retainer and meeting fees in the form of DSUs instead of cash. A DSU is
a unit, equivalent in value to a Share of the Company. Each DSU entitles the participant to receive a cash payment or Shares purchased
in the open market, at the option of the holder, upon termination of directorship, valued at the price of the Shares on the TSX
on the date of redemption. The redemption date which is the date the holder provides the redemption notice, is no later than December
15 of the first calendar year after the year in which the retirement date occurs.











FORM 20-FPage 57


Hydrogenics Corporation




Additionally, the Board has approved the following
annual DSU grants to independent directors: each director to receive DSUs equivalent to $15,000; Chairs of the Human Resources
and Corporate Governance Committee and the Audit Committee to receive DSUs equivalent to $25,000; and the Chair of the Board to
received DSUs equivalent to $40,000. DSU grants are pro-rated over the year.



For compensation information regarding Mr. Cargnelli
and Mr. Wilson, please see “Elements of Executive Compensation Program” above.



Incentive Plan
Awards



Outstanding Share-based Awards
and Option-based Awards During the Year Ended December 31, 2016



|                         | Option
    Based Awards                                 | Share
    Based Awards   
|------------------------ | ------------------------------------------------------- | -------------------------
|Name                     | Number
    of Securities Underlying Unexercised Options | Option
    Exercise Price
|                         | (#)                                                     | CA
    ($)               
|Douglas
    S. Alexander | n/a                                                     | n/a                      
|Michael
    Cardiff      | n/a                                                     | n/a                      
|Sara
    Elford          | n/a                                                     | n/a                      
|David
    C. Ferguson    | n/a                                                     | n/a                      
|Don
    Lowry            | n/a                                                     | n/a                      



Incentive Plan Awards - Value Vested
or Earned During the Year Ended December 31, 2016



|Name                     | Option
Based Awards - Value Vested During the Year | Share
Based Awards - Value Vested During the Year | Non-equity
Incentive Plan Compensation -Value Earned During the Year
|------------------------ | -------------------------------------------------- | ------------------------------------------------- | --------------------------------------------------------------------
|                         | ($)                                                | ($)                                               | ($)                                                                 
|Douglas
    S. Alexander | n/a                                                | 40,000                                            | n/a                                                                 
|Michael
    Cardiff      | n/a                                                | 15,000                                            | n/a                                                                 
|Sara
    Elford          | n/a                                                | 14,292                                            | n/a                                                                 
|David
    C. Ferguson    | n/a                                                | 25,000                                            | n/a                                                                 
|Don
    Lowry            | n/a                                                | 38,300                                            | n/a                                                                 



Post-retirement Benefit Obligations



For information regarding accrued post-retirement
benefit obligations, see “Note 13 - Trade and Other Payables” to our consolidated financial statements, which can
be found on page F-26 of this form, and is incorporated by reference herein.



FORM 20-FPage 58


Hydrogenics Corporation




Board Practices



For information regarding the period during which
the directors and executive officers have served in office, see “Item 6. Directors, Senior Management and Employees –
Directors and Senior Management” above. Each director elected will hold office until the next annual meeting of shareholders
or until his successor is duly elected or appointed.



Termination and Change of Control Benefits of
Executive Directors



Mr. Wilson’s employment agreement provides that he is entitled
to a lump sum payment of 18 months’ salary and target bonus in lieu of notice if he is terminated without cause at any time,
or if he is terminated without cause upon a change of control of the Company. This amount is equal to a maximum of approximately
$714,338 (CA$944,880) based on Mr. Wilson’s current compensation if Mr. Wilson was terminated effective as at December 31,
2016. The agreement also provides that all outstanding stock options held by Mr. Wilson will vest immediately upon termination
without cause or termination in connection with a with a change of control of the Company. Mr. Wilson has agreed to refrain from
competing with and interfering in the business of Hydrogenics for a period of one year subsequent to his termination for any reason.
Under the Omnibus Plan, if Mr. Wilson’s employment is terminated by the Company without cause, prior to the vesting date
of any awarded RSUs, then a pro rata portion of such RSUs will vest immediately prior to the date of his termination of employment.
The value of such RSUs, as of December 31, 2016, was $24,499 (CA$32,894). If Mr. Wilson’s employment is terminated in connection
with a change of control of the Company, all RSUs will vest immediately prior to the change in control.  The value of such
RSUs, as of December 31, 2016, was $97,288 (CA$130,623).  Under the Omnibus Plan, if Mr. Wilson’s employment is terminated
without cause, prior to the vesting date of any awarded PSUs, then all of Mr. Wilson’s unvested PSUs will vest in the normal
course for a period of 90 days extending from the end of the fiscal year in which the date of termination occurred. Any PSUs which
do not vest in the normal course during such 90 day period will, subject to Board approval, vest pro rata upon the date of termination.
The value of such PSUs, as of December 31, 2016, was $364,997 (CA$490,061). If Mr. Wilson’s employment is terminated in
connection with a change of control of the Company, all PSUs will vest immediately prior to the change in control.  The value
of such PSUs, as of December 31, 2016, was $411,000 (CA$551,826).





Mr. Motz’s employment agreement provides that Mr. Motz is
entitled to a lump sum payment of 12 months’ salary and target bonus in lieu of notice if Mr. Motz is terminated without
cause at any time, or if he is terminated without cause upon a change of control of the Company. This amount is equal to a maximum
of approximately $263,940 (CA$349,123) based on Mr. Motz’s current compensation if Mr. Motz was terminated effective as
at December 31, 2016. The agreement also provides that all outstanding stock options held by Mr. Motz will vest immediately upon
termination without cause or termination in connection with a change of control of the Company. Mr. Motz has agreed to refrain
from competing with and interfering in the business of Hydrogenics for a period of three years subsequent to his termination for
any reason. Under the Omnibus Plan, if Mr. Motz’s employment is terminated by the Company without cause, prior to the vesting
date of any awarded RSUs, then a pro rata portion of such RSUs will vest immediately prior to the date of his termination of employment.
The value of such RSUs, as of December 31, 2016, was $24,499 (CA$32,894). If Mr. Motz’s employment is terminated in connection
with a change of control of the Company, all RSUs will vest immediately prior to the change in control.  The value of such
RSUs, as of December 31, 2016, was $97,288 (CA$130,623).  Under the Omnibus Plan, if Mr. Motz’s employment is terminated
without cause, prior to the vesting date of any awarded PSUs, then all of Mr. Motz’s unvested PSUs will vest in the normal
course for a period of 90 days extending from the end of the fiscal year in which the date of termination occurred. Any PSUs which
do not vest in the normal course during such 90 day period will, subject to Board approval, vest pro rata upon the date of termination.
The value of such PSUs, as of December 31, 2016, was $148,407 (CA$199,257). If Mr. Motz’s employment is terminated in connection
with a change of control of the Company, all PSUs will vest immediately prior to the change in control.  The value of such
PSUs, as of December 31, 2016, was $186,271 (CA$250,095).



FORM 20-FPage 59


Hydrogenics Corporation




Mr. Cargnelli’s employment agreement provides that Mr. Cargnelli
is entitled to a lump sum payment of 24 months’ salary and one and a half times the average bonus paid in the two fiscal
years preceding termination in lieu of notice if Mr. Cargnelli is terminated without cause at any time, or if he is terminated
without cause upon a change of control of the Company. This amount is equal to a maximum of approximately $462,518 (CA$611,788)
based on Mr. Cargnelli’s current compensation if Mr. Cargnelli was terminated effective as at December 31, 2016. The agreement
also provides that all outstanding stock options held by Mr. Cargnelli will vest immediately upon termination without cause or
in connection with a change of control of the Company. Mr. Cargnelli has agreed to refrain from competing with and interfering
in the business of Hydrogenics for a period of three years subsequent to his termination for any reason. Under the Omnibus Plan,
if Mr. Cargnelli’s employment is terminated by the Company without cause, prior to the vesting date of any awarded RSUs,
then a pro rata portion of such RSUs will vest immediately prior to the date of his termination of employment. The value of such
RSUs, as of December 31, 2016, was $12,715 (CA$17,072). If Mr. Cargnelli’s employment is terminated in connection with a
change of control of the Company, all RSUs will vest immediately prior to the change in control.  The value of such RSUs,
as of December 31, 2016, was $50,492 (CA$67,793).  Under the Omnibus Plan, if Mr. Cargnelli’s employment is terminated
without cause, prior to the vesting date of any awarded PSUs, then all of Mr. Cargnelli’s unvested PSUs will vest in the
normal course for a period of 90 days extending from the end of the fiscal year in which the date of termination occurred. Any
PSUs which do not vest in the normal course during such 90 day period will, subject to Board approval, vest pro rata upon the
date of termination. The value of such PSUs, as of December 31, 2016, was $118,111 (CA$158,580). If Mr. Cargnelli’s employment
is terminated in connection with a change of control of the Company, all PSUs will vest immediately prior to the change in control.
 The value of such PSUs, as of December 31, 2016, was $141,371 (CA$189,811).





Mr. Westbroek’s employment agreement provides that Mr. Westbroek
is entitled to a lump sum payment of 12 months’ salary and bonus in lieu of notice, if Mr. Westbroek is terminated
without cause at any time, or if he is terminated without cause upon a change of control of the Company. This amount is equal
to a maximum of approximately $288,575 (CA$381,708) based on Mr. Westbroek’s current compensation if Mr. Westbroek was terminated
effective as at December 31, 2016. The agreement also provides that all outstanding stock options held by Mr.Westbroek will vest
immediately upon termination without cause or termination in connection with a change of control of the Company. Mr. Westbroek
has agreed to refrain from competing with and interfering in the business of Hydrogenics for a period of one year subsequent to
his termination for any reason. Under the Omnibus Plan, if Mr. Westbroek’s employment is terminated by the Company without
cause, prior to the vesting date of any awarded RSUs, then a pro rata portion of such RSUs will vest immediately prior to the
date of his termination of employment. The value of such RSUs, as of December 31, 2016, was $5,808 (CA$7,797). If Mr. Westbroek’s
employment is terminated in connection with a change of control of the Company, all RSUs will vest immediately prior to the change
in control.  The value of such RSUs, as of December 31, 2016, was $23,062 (CA$30,964).  Under the Omnibus Plan, if Mr.
Westbroek’s employment is terminated without cause, prior to the vesting date of any awarded PSUs, then all of Mr. Westbroek’s
unvested PSUs will vest in the normal course for a period of 90 days extending from the end of the fiscal year in which the date
of termination occurred. Any PSUs which do not vest in the normal course during such 90 day period will, subject to Board approval,
vest pro rata upon the date of termination. The value of such PSUs, as of December 31, 2016, was $83,995 (CA$112,775). If Mr.
Westbroek’s employment is terminated in connection with a change of control of the Company, all PSUs will vest immediately
prior to the change in control.  The value of such PSUs, as of December 31, 2016, was $94,654 (CA$127,087).



Mr. Smeets’ employment agreement provides that he is entitled
to one month’s notice plus an additional month per year of employment, at a minimum of three and a maximum of six months’
notice. Under no circumstances will the termination of Mr. Smeets’ employment for any reason entitle Mr. Smeets to any form
of damage compensation. Mr. Smeets has agreed to refrain from competing with and interfering in the business of Hydrogenics in
Belgium for a period of one year subsequent to his termination for any reason.





FORM 20-FPage 60


Hydrogenics Corporation




Human Resources and Corporate Governance Committee



Composition
of Human Resources and Corporate Governance Committee



The following individuals served as members of
the Human Resources and Corporate Governance Committee as at December 31, 2016: Don Lowry, Chair, Douglas S. Alexander, Michael
Cardiff, Sara Elford and David C. Ferguson.



Each member of the Human Resources and Corporate
Governance Committee is independent under tests established by legal and stock exchange requirements to which the Company is subject.
None of the members of the Human Resources and Corporate Governance Committee is an officer, employee or former officer or employee
of the Company or any of its affiliates.



For details with respect to each member of the
Human Resources and Corporate Governance Committee’s experience relating to executive compensation matters, see “Directors
and Senior Management” above.



Nomination
of Directors and Compensation



Annually, the Human Resources and Corporate Governance
Committee assesses the size of the Board, the competencies, skills and personal qualities required of the Board in order to add
value to the Company, and the competencies, skills and personal qualities of existing directors. Based on this assessment, the
Human Resources and Corporate Governance Committee will consider whether to recommend any changes to the composition of the Board,
including proposing nominations to the Board for approval. When required, the Human Resources and Corporate Governance Committee
will evaluate potential candidates for serving as a director having regard to the background, employment and qualifications of
possible candidates and will consider whether the candidate’s competencies, skills and personal qualities are aligned with
the Company’s needs.





In fulfilling its charter, the Human Resources
and Corporate Governance Committee’s role also includes reviewing and reporting to the Board on: human resource planning,
including the terms of the compensation packages provided to the Company’s employees; succession planning and senior management
appointments; the levels and form of executive compensation in general; and the specific compensation of senior executives, including
the annual compensation of the President and Chief Executive Officer. The committee also administers the Omnibus Plan, old stock
option plan (“Old Option Plan”) and deferred share unit plan (“DSU Plan”) and reviews and makes recommendations
to the Board regarding the annual compensation of non-employee directors.



Report of the Human Resources and Corporate
Governance Committee



The Human Resources and Corporate Governance
Committee ensures the Company develops and implements an effective and efficient approach to corporate governance and has a plan
for the continuity of its officers and an executive compensation plan that is motivational and competitive, which will attract,
retain and inspire executive management and other key personnel.







The
committee ensures the Company’s business and affairs are carried out in a transparent manner that will enhance shareholder
value. The committee assesses the effectiveness of the Company’s corporate governance processes and compensation policies
and, where appropriate, makes recommendations with respect to the implementation, development and modification with respect to
these processes and policies.



In
2016, the Human Resources and Corporate Governance Committee, in fulfilling its responsibilities, took the following measures:



| | · | reviewed
                                         and approved, on an aggregate basis, the total compensation of all employees of the Company
                                         and all subsidiaries of the Company;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and approved corporate goals and objectives relevant to Chief Executive Officer compensation,
                                         evaluated the Chief Executive Officer’s performance in light of those goals and
                                         objectives, and set the Chief Executive Officer’s compensation level based on this
                                         evaluation;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         the Chief Executive Officer’s evaluation of the performance of the other officers
                                         of the Company and such other senior management and key employees of the Company or any
                                         subsidiary of the Company as identified to the Human Resources and Corporate Governance
                                         Committee by the Board (collectively, the “Designated Executives”) and reviewed
                                         the Chief Executive Officer’s recommendations with respect to the amount of compensation
                                         to be paid to the Designated Executives;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





FORM 20-FPage 61


Hydrogenics Corporation




| | · | reviewed
                                         and assessed the competitiveness and appropriateness of, and approved the compensation
                                         package of, each of the Designated Executives;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and approved any employment contracts or arrangements with each of the Designated Executives,
                                         including any retiring allowance arrangements or any similar arrangements to take effect
                                         in the event of a termination of employment;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and recommended to the Board compensation policies and processes and, in particular,
                                         the compensation policies and processes for the Designated Executives;
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | in
                                         determining the long-term incentive component of the Chief Executive Officer’s
                                         compensation and each Designated Executive’s compensation, considered the Company’s
                                         performance and relative shareholder return, the value of similar incentive awards to
                                         executives at comparable companies, and the awards given to executives of the Company
                                         in past years;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | made
                                         recommendations to the Board with respect to incentive compensation and equity-based
                                         plans, including the design and adoption of the Omnibus Plan;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | administered,
                                         approved and ratified awards under incentive compensation and stock plans, including
                                         amendments to the awards made under any such plans, and reviewed and monitored awards
                                         under such plans;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | made
                                         recommendations to the Board regarding the annual compensation of non-employee directors;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and reported to the Board on the appropriateness of the succession planning of the Company,
                                         including appointing, training and monitoring senior management;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         the significant human resources policies, plans and programs of the Company to ensure
                                         they are supportive of the Company’s near and long-term strategies; and
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | undertook
                                         on behalf of, and in an advisory capacity to, the Board such other initiatives as were
                                         considered necessary or desirable to assist the Board in discharging its responsibility
                                         to ensure appropriate human resources development, performance evaluation, compensation
                                         and management development programs are in place and operating effectively.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The
Human Resources and Corporate Governance Committee met twice in 2016. The Human Resources and Corporate Governance Committee is
satisfied that it has fulfilled its charter during the year ended December 31, 2016.





Other
Committee Assessments



The Human Resources and Corporate Governance
Committee is responsible for supervising the assessment of the effectiveness of the Board of Directors as a whole and each committee
of the Board of Directors, for evaluating the performance of the Chair of the Board, the Chair of each committee and, as necessary,
the performance and contribution of individual directors. The process generally involves the Human Resources and Corporate Governance
Committee assigning the task of conducting a survey of directors (with respect to their views on the effectiveness of the Board
of Directors, Chair of the Board, each committee of the Board and its Chair and individual directors). The form of the survey
is approved by the Human Resources and Corporate Governance Committee. The results of the survey are communicated in writing to
the Chair of the Board and the Chair then reports the overall results and the Chair’s recommendations to the Board. The
Chair also meets in person or by telephone, as necessary, with each Board member to confidentially discuss his or her peer evaluation.
The Chair of the Board also meets with the Chair of the Human Resources and Corporate Governance Committee to review the results
of the survey prior to the Human Resources and Corporate Governance Committee meeting to finalize its recommendations for Board
and committee nominations. The Chair of the Human Resources and Corporate Governance Committee meets with the Chair of the Board
to discuss the Chair’s performance assessment.



FORM 20-FPage 62


Hydrogenics Corporation




The Human Resources and Corporate Governance
Committee administers the Company’s executive compensation program for executive officers, including the Named Executive
Officers.



Audit Committee



Our Board has delegated to the Audit Committee
responsibility for assisting the Board in its oversight role with respect to the quality and integrity of financial information
and reporting disclosure, risk management, the performance, qualifications and independence of the external auditors and legal
and regulatory compliance. The Audit Committee regularly meets in camera to review management’s financial stewardship.
The Audit Committee consists entirely of unrelated, independent and financially literate directors.



During the past year, the Audit Committee, in
fulfilling its responsibilities, took the following measures:



| | · | reviewed
                                         and discussed with management and the public accountants the Company’s annual audited
                                         consolidated financial statements, including disclosures made in management’s discussion
                                         and analysis (“MD&A”) and recommend to the Board whether the audited
                                         consolidated financial statements should be included in the Company’s annual report;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and discussed with management and the public accountants the Company’s quarterly
                                         consolidated financial statements, including disclosures made in the MD&A or similar
                                         disclosures, prior to the filing of its quarterly report;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and discussed with management and the public accountants the financial information and
                                         consolidated financial statements contained in any prospectus, registration statement,
                                         annual information form, circular or other material disclosure document of the Company,
                                         in each case, prior to the filing of such documents;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         and discussed with management and the public accountants, as applicable: (i) major issues
                                         regarding accounting principles and consolidated financial statement presentations, including
                                         any significant changes in the Company’s selection or application of accounting
                                         principles, and major issues as to the adequacy of the Company’s internal controls
                                         and any special audit steps adopted in light of material control deficiencies; (ii) analyses
                                         prepared by management or the public accountants setting forth significant financial
                                         reporting issues and judgments made in connection with the preparation of the consolidated
                                         financial statements, including analyses of the effects of alternative International
                                         Financial Reporting Standards (“IFRS”) methods on the consolidated financial
                                         statements; (iii) any management letter provided by the public accountants and the Company’s
                                         response to that letter; (iv) any problems, difficulties or differences encountered in
                                         the course of the audit work, including any disagreements with management or restrictions
                                         on the scope of the public accountants’ activities or on access to requested information
                                         and management’s response thereto; (v) the effect of regulatory and accounting
                                         initiatives, as well as off-balance sheet structures, on the consolidated financial statements
                                         of the Company; and (vi) prior to their release, earnings press releases, as well as
                                         financial information and earnings guidance (generally or on a case-by-case basis) provided
                                         to analysts and rating agencies;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





| | · | discussed
                                         with management the Company’s major financial risk exposures and the steps management
                                         has taken to monitor and control such exposures, including the Company’s risk assessment
                                         and risk management policies;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | obtained
                                         and reviewed a report from the public accountants regarding: (i) the public accountants’
                                         internal quality control procedures; (ii) any material issues raised by the most recent
                                         quality control review, or peer review, of the firm, or by any inquiry or investigation
                                         by governmental or professional authorities within the preceding five years respecting
                                         one or more independent audits carried out by the firm; (iii) any steps taken to deal
                                         with any such issues; and (iv) all relationships between the public accountants and the
                                         Company;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | evaluated
                                         the qualifications, performance and independence of the public accountants, including
                                         a review and evaluation of the lead partner of the public accountants and taking into
                                         account the opinions of management;
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | ensured
                                         that the lead audit partner of the public accountants and the audit partner responsible
                                         for reviewing the audit are rotated at least every five years as required by SOX;
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





FORM 20-FPage 63


Hydrogenics Corporation




| | · | discussed
                                         with management and the public accountants any accounting adjustments that were noted
                                         or proposed by the public accountants but were passed (as immaterial or otherwise);
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | established
                                         procedures for: (i) the receipt, retention and treatment of complaints received by the
                                         Company regarding accounting, internal accounting controls or auditing matters; and (ii)
                                         the confidential, anonymous submission by employees of the Company of concerns regarding
                                         questionable accounting or auditing matters;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         disclosures made by the Company’s principal executive officer or officers and principal
                                         financial officer or officers regarding compliance with their certification obligations
                                         as required under SOX and the rules promulgated thereunder, including the Company’s
                                         disclosure controls and procedures and internal controls for financial reporting and
                                         evaluations thereof;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         with management and approved the Company’s investment policies for its securities
                                         portfolio and reviewed the portfolio management performance; and
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         the performances of the Chief Financial Officer and other senior executives involved
                                         in the financial reporting process, reviewed financial and accounting personnel succession
                                         planning within the Company and, where possible, consulted on the appointment of, or
                                         departure of, individuals occupying these positions.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | · | reviewed
                                         the process and controls to identify, authorize and approve accounting for and disclosing
                                         relationships and transactions with related parties.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The Audit Committee met five times in 2016. The
Audit Committee is satisfied that it has fulfilled its charter during the year ended December 31, 2016.



The Audit Committee of our Board of Directors
operates under a written charter that sets out its responsibilities and composition requirements. As at December 31, 2016 and
March 8, 2017, the members of the committee were: David C. Ferguson (Chair), Douglas S. Alexander, Michael Cardiff, Sara Elford,
and Don Lowry. The following sets out the education and experience of each director relevant to the performance of his duties
as a member of the committee.



David C. Ferguson is Chair of our Audit Committee.
Mr. Ferguson was Executive Managing Director and Chief Financial Officer of BMO Capital Markets and was a member of the Board
of Directors of BMO Nesbitt Burns between 1999 and 2012.  Prior to 1999, he had a 25 year career at KPMG including 16 years
as an audit partner in the Toronto office serving major clients in the manufacturing, mining, and financial services sectors. 
Mr. Ferguson is a member of the Board of Directors of GMP Capital Inc. where he serves as Chair of the Audit Committee and a member
of the Governance Committee. He also serves on the Boards of Directors and chairs the Audit Committees of two private companies,
Antares Holdings GP, Inc. and Highland Therapeutics Inc.  Mr. Ferguson is the former President and Chair of the Board of
Directors of the Canadian Opera Company, one of Canada’s leading performing arts organizations.  Mr. Ferguson is a
Fellow of the Institute of Chartered Professional Accountants of Ontario, and member of the Institute of Corporate Directors. 
Mr. Ferguson received Bachelor of Commerce and Master of Business Administration degrees from the University of Toronto.





Mr. Alexander is Chairman of the Board of Directors
of Equitable Life Insurance Company, a Director and member of the Audit Committee of Critical Outcome Technologies Inc. and has
served as the Chief Financial Officer of various Canadian public companies for 15 years. Mr. Alexander served as a director of
Stuart Energy from 2003 to January 2005 and served as a director on Biorem Technologies Inc. from 2010 to 2012. From 1999 to 2004,
Mr. Alexander was Executive Vice President and Chief Financial Officer of Trojan Technologies Inc., an international environmental
high technology company. Mr. Alexander’s financial expertise and corporate experience, including responsibility for the
Human Resources function while at Trojan Technologies Inc., in addition to his extensive knowledge of the business, assist him
in assessing appropriate executive compensation based on the Company’s performance. Mr. Alexander is a Chartered Professional
Accountant and is a member of the Institute of Chartered Accountants in Scotland and Ontario. He is also a Chartered Director,
having graduated from the Director’s College, a joint venture between McMaster University and the Conference Board of Canada.



FORM 20-FPage 64


Hydrogenics Corporation




Mr. Cardiff was most recently Global Senior Vice President for
the Office of the CFO Business Unit at INFOR, a $3 billion revenue software company. His business unit included software for financials,
payroll, human resources, performance management, business intelligence, planning and forecasting, compliance and risk management.
Prior to holding that position, Mr. Cardiff held numerous senior positions in a number of technology companies, including large
multinationals such as EDS, SAP and IBM, as well as startup companies such as Fincentric, Convergent Technologies, Tandem, and
Stratus Computer. Mr. Cardiff is currently also a director of Aterna Zentaris and Startech.Com.
Mr. Cardiff has also served as a director of other publicly traded companies, including Husky Injection Molding, Descartes Systems
Group, Visible Genetics and Burntsand Inc. He has also been a director of private companies, including Solcorp, Spectra Security
Software and Visible Decisions and not-for-profit organizations such as The Toronto International Film Festival, Roy Thomson Hall
and Medic Alert Foundation. Mr. Cardiff holds the ICD.D designation from the Institute of Corporate Directors. Mr. Cardiff has
also been recognized with a Canadian export Lifetime Achievement Award as well as one of Canada’s Top 40 under 40.



Ms. Sara Elford is a corporate director. Prior to that, Ms. Elford
was a sell-side equity research analyst with Canaccord Genuity, with over 20 years of experience in the capital markets industry.
Over the course of her analyst career, Ms. Elford followed a broad range of industries and business models, with a specific, but
not exclusive, focus on emerging companies, technologies and/or sectors. According to Thomson Reuters Starmine, she was named
in the top two for stock picking in her sector six times since 2003, and in 2005 she was named the top stock picker in Canada
across all sectors and analysts. Ms. Elford has been a CFA Charterholder since 1997 and completed the academic requirements for
the directors’ education program with the ICD in 2015. She is currently a member of the FTSE Environmental Markets Committee
and is also a member of the Board of Directors of Carmanah Technologies and Pure Technologies. She is a graduate of Bishop’s
University in Quebec.



Mr. Don Lowry was the President & CEO of EPCOR Utilities in
March of 2013, when after 16 years he stepped down to focus on corporate board work and to serve on local community boards and
associations. Prior to joining EPCOR, Don spent more than 20 years in the telecommunications industry. He was President and Chief
Operating Officer of Telus Communications Inc. and Chair of Alta Telecom. Don is currently non-executive Chair of Capital Power
and served as non-executive Chair of Canadian Oil Sands from 2009 to 2016. As well, he serves as a director of Stantec and Melcor
REIT. Don earned his ICD.D designation from the Rotman School of business. He was the Chair of the 2014-2016 Edmonton World Triathalon.
In 2013 he established the Don and Norine Lowry, Women of Excellence annual scholarship for Edmonton women pursuing their post-secondary
education in Edmonton. In 2010 Don was recognized as Alberta Venture’s Business Person of the Year; and was the Alberta
Chamber of Resources’ Resource Person of the year in 2014. Don holds a B.Comm. (Honours) and an MBA from the University
of Manitoba. He is also a graduate of the Harvard Advanced Management Program and the Banff School of Management.



The Audit Committee charter requires each member
of the Audit Committee to be unrelated and independent, and the composition of the Audit Committee satisfy the independence, experience
and financial expertise requirements of the Nasdaq, the TSX and Section 10A of the Securities Exchange Act of 1934 (United States),
as amended by the Sarbanes-Oxley Act of 2002 (United States), and the rules promulgated thereunder. Accordingly, all committee
members are required to be financially literate or be willing and able to acquire the necessary knowledge quickly. Financial literacy
means the person has the ability to read and understand financial statements that present a breadth and level of complexity of
accounting issues that are generally comparable to the breadth and complexity of the issues that can reasonably be expected to
be raised by our consolidated financial statements. We believe all of the current members of the Audit Committee are financially
literate.





In addition, the Audit Committee charter contains
independence requirements that each committee member must satisfy each current member meets those requirements. Specifically,
the charter provides that no member of the committee may be an officer or retired officer of Hydrogenics and each member must
be independent of Hydrogenics within the meaning of all applicable laws, rules and regulations and any other relevant consideration,
including laws, rules and regulations particularly applicable to Audit Committee members.



The Audit Committee has a policy restricting
the provision of non-audit services by our auditors. Any such services must be permitted engagements as provided by the Audit
Committee charter and must be pre-approved by the Audit Committee. The Audit Committee also pre-approves audit services and the
related fees.



FORM 20-FPage 65


Hydrogenics Corporation




Employees



As at December 31, 2016, we employed approximately
170 full-time staff. Our full-time staff is divided between 80 full-time staff in our OnSite Generation business, 85 full-time
staff in our Power Systems business, and 5 full-time staff in our Corporate Services group. As of December 31, 2016, five of our
employees were located in our Mississauga, Ontario corporate headquarters, 69 employees were located in our Mississauga, Ontario
Power Systems group, 3 employees were located in our Mississauga, Ontario OnSite generation group, 16 employees were located in
our Gladbeck, Germany power generation group and 77 employees were located in our Oevel-Westerlo, Belgium OnSite generation group.



As at December 31, 2015, we employed approximately
174 full-time staff. Our full-time staff is divided between 93 full-time staff in our OnSite Generation business, 76 full-time
staff in our Power Systems business, and five full-time staff in our Corporate Services group. As of December 31, 2015, five of
our employees were located in our Mississauga, Ontario corporate headquarters, 63 employees were located in our Mississauga, Ontario
Power Systems group, four employees were located in our Mississauga, Ontario OnSite generation group, thirteen employees were
located in our Gladbeck, Germany power generation group and 89 employees were located in our Oevel-Westerlo, Belgium OnSite generation
group.



As at December 31, 2014, we employed approximately
163 full-time staff. Our full-time staff is divided between 84 full-time staff in our OnSite Generation business, 74 full-time
staff in our Power Systems business, and five full-time staff in our Corporate Services group. As of December 31, 2014, five of
our employees were located in our Mississauga, Ontario corporate headquarters, 61 employees were located in our Mississauga, Ontario
Power Systems group, four employees were located in our Mississauga, Ontario OnSite generation group, thirteen employees were
located in our Gladbeck, Germany power generation group and 80 employees were located in our Oevel-Westerlo, Belgium OnSite generation
group.



Our ability to attract, motivate and retain qualified
personnel is critical to our success. We attempt to align the interests of our employees with those of shareholders through the
use of incentive stock options and a performance based compensation structure. A majority of employees own our common shares or
options to purchase our common shares. We have entered into non-disclosure and confidentiality agreements with key management
personnel and with substantially all employees. None of our employees are represented by a collective bargaining agreement and
we believe our relations with our employees are good.



Share Ownership



Below is a summary of the securities ownership
for each director and Named Executive Officer as of February 28, 2017.





|                     |  |  | Share-based Awards | 
|-------------------- |  |  | ------------------ | 
|Name                 |  |  | Common Shares      | 
|Douglas S. Alexander |  |  | 88                 | 
|Michael Cardiff      |  |  | Nil                | 
|Sara Elford          |  |  | 2,400              | 
|David C. Ferguson    |  |  | 1,200              | 
|Don Lowry            |  |  | Nil                | 
|Joseph Cargnelli     |  |  | 156,452            | 
|Daryl Wilson         |  |  | 16,702             | 
|Robert Motz          |  |  | Nil                | 
|Wido Westbroek       |  |  | Nil                | 
|Filip Smeets         |  |  | Nil                | 





FORM 20-FPage 66


Hydrogenics Corporation




|Name                 |  | RSUs |        |  | % of RSUs Outstanding |  |     | PSUs |  |  | % of PSUs Outstanding | 
|-------------------- |  | ---- | ------ |  | --------------------- |  | --- | ---- |  |  | --------------------- | 
|Douglas S. Alexander |  |      | Nil    |  |                       |  | Nil |      |  |  | Nil                   | 
|Michael Cardiff      |  |      | Nil    |  |                       |  | Nil |      |  |  | Nil                   | 
|Sara Elford          |  |      | Nil    |  |                       |  | Nil |      |  |  | Nil                   | 
|David C. Ferguson    |  |      | Nil    |  |                       |  | Nil |      |  |  | Nil                   | 
|Don Lowry            |  |      | Nil    |  |                       |  | Nil |      |  |  | Nil                   | 
|Joseph Cargnelli     |  |      | 11,790 |  |                       |  | 22  | %    |  |  | 31,354                | 
|Daryl Wilson         |  |      | 22,717 |  |                       |  | 43  | %    |  |  | 92,777                | 
|Robert Motz          |  |      | 12,591 |  |                       |  | 24  | %    |  |  | 41,838                | 
|Wido Westbroek       |  |      | 5,385  |  |                       |  | 11  | %    |  |  | 21,194                | 



|                     | Option-based
    Awards
|-------------------- | -----------------------
|Name                 |                        
|Douglas S. Alexander |                        
|Michael Cardiff      |                        
|Sara Elford          |                        
|David C. Ferguson    |                        
|Don Lowry            |                        
|Daryl Wilson         |                        
|Robert Motz          |                        
|Joseph Cargnelli     |                        
|Wido Westbroek       |                        



For information regarding arrangements for involving
employees in the capital of our Company, see “Item 6. Directors, Senior Management and Employees – Compensation –
Elements of Executive Compensation Program – Long-term Incentives” above.





|ITEM 7. |  | MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
|------- |  | -------------------------------------------------



Major Shareholders



To the knowledge of our directors and officers,
as of February 28, 2017, no person or company beneficially owns, directly or indirectly, or exercises control or direction over
common shares carrying more than 5% of the voting rights attached to our outstanding common shares other than CommScope which
owns 1,237,987 common shares, representing 9.9% of our outstanding common shares and Heartland Advisors, Inc. which owns 1,015,000
common shares, representing 8.1% of our outstanding common shares.



Our major shareholders do not have voting rights
different from those of our other shareholders.



See “Item 10. Additional Information –
Material Contracts” for information regarding changes in ownership interests of CommScope since it first purchased common
shares from the Company in 2010.



As of December 31, 2016, approximately 100 US
shareholders held approximately 9,630,703 common shares or approximately 77% of our outstanding common shares.



As of February 28, 2017, approximately 255 US
shareholders held approximately 9,630,922 common shares or approximately 77% of our outstanding common shares.



FORM 20-FPage 67


Hydrogenics Corporation




Related Party Transactions



Transactions with Viking Engineering & Tool Co.



In the normal course of operations, we subcontract certain machining
and sheet metal fabrication of parts to Viking Engineering & Tool Co., a company owned by the father and uncle of Joseph
Cargnelli, a director and senior officer of the Company and one of our principal shareholders. For the fiscal year ended December 31,
2016, billings by this related company totalled $0.4 million, an increase of $0.3 million from the $0.1 million billed in the
year ended December 31, 2015. For the fiscal year ended December 31, 2015, billings by this related company totalled $0.1
million, a decrease of $0.1 million from the $0.2 million billed in the year ended December 31, 2014. At December 31, 2016,
and February 28, 2017 we had an accounts payable balance due to this related company of less than $0.1 million and less than $0.1
million, respectively. We believe that transactions with this company are consistent with those we have with unrelated third parties.



Kolon Hydrogenics



We hold an equity investment in the joint venture Kolon Hydrogenics.
For the fiscal year ended December 31, 2016, we had sales to the joint venture of $0.2 million, a decrease of $0.5 million
from the $0.7 million billed in the year ended December 31, 2015. For the fiscal year ended December 31, 2015, billings by
this related company totalled $0.7 million, a decrease of $2.4 million from the $3.1 million billed in the year ended December
31, 2014. At December 31, 2016, and February 28, 2017 we had an accounts payable balance due to this related company of less
than $0.1 million and less than $0.1 million, respectively. We believe that transactions with this company are consistent with
those we have with unrelated third parties.



All related party transactions have been recorded at the exchange
amount, which is the consideration paid or received as established and agreed by the related parties.



See “Item 10. Additional Information – Material Contracts”
for additional information regarding the Corporation’s relationship with CommScope and Enbridge.



INDEBTEDNESS OF DIRECTORS AND EXECUTIVE OFFICERS



None.



Interests of Experts
and Counsel



Not applicable.





|ITEM 8. |  | FINANCIAL INFORMATION
|------- |  | ---------------------



Consolidated Statements
and Other Financial Information



Financial Statements



See “Item 18. Financial Statements.”
For accounting purposes, we are considered to be a continuation of Old Hydrogenics.



Export Sales (before Legal Proceedings)



Our export sales (to customers outside Canada)
for the year ended December 31, 2016 was $29.0 million, representing 99% of our total sales for such year, for the year ended
December 31, 2015 was $35.1 million, representing 98% of our total sales for such year, and for the year ended December 31, 2014
was $41.2 million, representing 92% of our total sales for such year.



Legal Proceedings or Settlements



We are not currently party to any material legal
or arbitration proceedings or settlements.



FORM 20-FPage 68


Hydrogenics Corporation




Dividends Policy



We have never declared or paid any cash dividends
on our common shares. We currently intend to retain any future earnings to fund the development and growth of our business and
we do not anticipate paying any cash dividends in the foreseeable future.



Significant Changes



No significant changes have occurred since the
date of the audited financial statements included in this Annual Report.



|ITEM 9. |  | THE OFFER AND LISTING
|------- |  | ---------------------



Listing Details



The following table sets forth the reported trading
prices in Canadian dollars and US dollars for our common shares on the TSX and Nasdaq, respectively.



|                                 |  | TSX        |       | Nasdaq   
|-------------------------------- |  | ---------- | ----- | ---------
|                                 |  | High (CA$) |       | Low (CA$)
|Annual Market Prices             |  |            |       |          
|2012                             |  |            | 8.66  |          
|2013                             |  |            | 20.80 |          
|2014                             |  |            | 39.50 |          
|2015                             |  |            | 19.75 |          
|2016                             |  |            | 13.17 |          
|                                 |  |            |       |          
|Quarterly Market Prices          |  |            |       |          
|2015                             |  |            |       |          
|First Quarter                    |  |            | 19.75 |          
|Second Quarter                   |  |            | 16.58 |          
|Third Quarter                    |  |            | 13.49 |          
|Fourth Quarter                   |  |            | 16.19 |          
|2016                             |  |            |       |          
|First Quarter                    |  |            | 12.40 |          
|Second Quarter                   |  |            | 13.17 |          
|Third Quarter                    |  |            | 10.23 |          
|Fourth Quarter                   |  |            | 8.96  |          
|2017                             |  |            |       |          
|First Quarter (to March 7, 2017) |  |            | 8.79  |          
|                                 |  |            |       |          
|Monthly Market Prices            |  |            |       |          
|2016                             |  |            |       |          
|September                        |  |            | 8.82  |          
|October                          |  |            | 8.96  |          
|November                         |  |            | 7.67  |          
|December                         |  |            | 6.54  |          
|2017                             |  |            |       |          
|January                          |  |            | 7.72  |          
|February                         |  |            | 8.79  |          
|March (up to March 7, 2017)      |  |            | 7.99  |          





FORM 20-FPage 69


Hydrogenics Corporation


PLAN OF DISTRIBUTION



Not applicable.



Markets



Our common shares are listed on the TSX under the symbol “HYG”
and on the Nasdaq under the symbol “HYGS.”



Selling Shareholders



Not applicable.



Dilution



Not applicable.



Expenses of the Issue



Not applicable.



|ITEM 10. |  | ADDITIONAL INFORMATION
|-------- |  | ----------------------



Share Capital



Not applicable.



Memorandum and Articles
of Association



Company Purpose



The Company’s restated articles of incorporation, together
with any amendments thereto, which we refer to as our articles of incorporation, are filed with Industry Canada, pursuant to the
Canada Business Corporations Act, which we refer to as the CBCA. Our articles of incorporation do not have a stated purpose.



Directors



Pursuant to applicable Canadian law, our directors, in exercising
their powers and discharging their duties must act honestly and in good faith with a view to the best interests of the Company.
They must also exercise the care, diligence and skill that a reasonably prudent person would exercise in comparable circumstances.



Pursuant to the provisions of the CBCA, a director who is party
to a material contract or transaction with the Company, is a director or an officer or an individual acting in a similar capacity
of a party to the contract or transaction, or who has a material interest in a party to a material contract or transaction with
the Company must disclose to the Company the nature and extent of such interest in writing or request to have such interest noted
in the minutes of meetings of the directors. Furthermore, a director who has a material interest in a matter before the board
must refrain from voting on the matter unless the contract: is with one of our affiliates; relates to the director’s remuneration
as a director or officer of the Company; or relates to our indemnity or insurance for our officers and directors.



Pursuant to the CBCA, at least 25% of our directors must be resident
Canadians. The CBCA also requires that we have not less than three directors, at least two of whom are not officers or employees
of the Company or its Affiliates. We currently have seven directors, all of whom are resident Canadians. Our articles of incorporation
provide that the minimum size of our Board of Directors be three and the maximum size of our Board of Directors be twelve. Our
directors may, from time to time, determine the number of directors on the Board by resolution, which is currently seven directors.
Our articles of incorporation and our by-laws do not impose any other director qualification requirements.





FORM 20-FPage 70


Hydrogenics Corporation






In February 2010, the Board of Directors amended our by-laws to
provide the Chairman of the Board of Directors with a casting vote in the case of an equality of votes on a question before the
Board of Directors at a meeting of the Board of Directors. This amendment was approved by our shareholders at the annual and special
meeting of shareholders in May 2010.



Director Share Ownership Guidelines



We have established director share ownership guidelines that require
each of our directors to hold Shares or DSUs equal to three times the director’s annual cash retainer within three years
of his initial appointment. The value of the directors’ shares or DSUs are measured at either the year-end Share price,
or a director’s acquisition cost of Shares and initial grant price of DSUs.



Shareholder Rights



Our authorized capital consists of an unlimited
number of common shares with no par value and an unlimited number of preferred shares with no par value issuable in series, of
which 12,544,960 common shares and no preferred shares were issued and outstanding as of February 28, 2017. As of February 28,
2017, we also have 450,575 warrants issued and outstanding, whereby each warrant entitles the holder to purchase a common share.



Our articles of incorporation permit us to issue
an unlimited number of common and preferred shares. If we were to issue a significant number of common shares, it would reduce
the relative voting power of previously outstanding shares.



Each common share carries one vote on all matters
to be voted on by our shareholders.  Holders of common shares are entitled to receive dividends if, as and when declared
by our Board of Directors and to share ratably in our remaining assets available for distribution, after payment of liabilities,
upon Hydrogenics’ liquidation, dissolution or winding up.  Common shares do not carry pre-emptive rights or rights
of conversion into any other securities.  All outstanding common shares are fully paid and non-assessable.  There are
no limitations on the rights of non-resident owners of common shares to hold or vote their shares.



Our Board of Directors has the authority, without
further action by the shareholders, to issue an unlimited number of preferred shares in one or more series and, in the event preferred
shares are issued, the Board also has the authority to fix the designations, powers, preferences, privileges and relative, participating,
optional or special rights of any preferred shares including any qualifications, limitations or restrictions. Special rights that
may be granted to a series of preferred shares include dividend rights, conversion rights, voting rights, redemption and liquidation
preferences, any or all of which may be superior to the rights of the common shares. Preferred share issuances could decrease
the market price of common shares and may adversely affect the voting and other rights of the holders of common shares. The issuance
of preferred shares could also have the effect of delaying or preventing a change in control of Hydrogenics.



We have never declared or paid any cash dividends
on our common shares. We currently intend to retain any future earnings to fund the development and growth of our business and
we do not anticipate paying any cash dividends in the foreseeable future.



Changes To Shareholder
Rights



Under the CBCA, amendments to our articles of
incorporation will generally require approval by special resolution. A special resolution is a resolution passed by a majority
of not less than two-thirds of the votes cast by the shareholders who voted in person or by proxy in respect of that resolution
at the annual or special meeting called for such purpose. If the amendment is of a nature affecting a particular class or series
of our shares in a manner requiring a separate class or series vote, that class or series is entitled to vote on the amendment
whether or not it otherwise carries the right to vote. Under the CBCA, our directors may make, amend or repeal any by-law that
regulates our business or affairs. Where our directors make, amend or repeal a by-law, they are required to submit the by-law,
amendment or repeal to the shareholders at the next meeting of shareholders, and the shareholders may, by an ordinary resolution,
which is a resolution passed by a simple majority of the votes cast by shareholders who voted in respect of the resolution, confirm,
reject or amend the by-law, amendment or repeal.





FORM 20-FPage 71


Hydrogenics Corporation






Shareholder Meetings



Our Board is required to call an annual meeting
of the shareholders no later than 15 months after the holding of the last preceding annual meeting. Our Board may also call a
special meeting of the shareholders at any time. The only persons entitled to attend a meeting of our shareholders are our directors,
our auditors and those persons entitled to vote at such meeting and any other persons who, although not entitled to vote at the
meeting, are entitled to attend such meeting pursuant the provisions of the CBCA. Under our by-laws, a quorum of shareholders
shall be two persons present in person or represented by proxy holding, in the aggregate, not less than 25% of the outstanding
shares of the Company.



Limitations



There are no limitations in our articles of incorporation
or by-laws or under Canadian federal or provincial laws, on the right of non-residents of Canada or foreign owners to hold or
vote our common shares, except for transactions involving or being deemed to involve an acquisition of control, which requires
compliance with the Investment Canada Act.



Change in Control



Our articles of incorporation and by-laws do
not contain any provisions that would have the effect of delaying, deferring or preventing a change in control of the Company.



Under the CBCA, certain extraordinary corporate
actions, such as amalgamations, continuances, sales, leases or exchanges of all or substantially all of the property of a corporation
other than in the ordinary course of business, and other extraordinary corporate actions such as liquidations or dissolutions
are also required to be approved by special resolution. In certain cases, a special resolution to approve an extraordinary corporate
action is also required to be approved separately by the holders of a class or series of shares.



Disclosure of Shareholdings



Our by-laws do not impose an ownership threshold,
above which shareholder ownership must be disclosed and any obligation to make such disclosure would be the subject of applicable
securities laws.



Material contracts



For the two years immediately preceding the date
of this Annual Report, except for the material contracts summarized below, no material
contracts have been entered into by us other than in the ordinary course of business.





EDC



| | · | On November 4, 2016, we entered into a loan agreement with EDC for a five year facility of $9 million.
The loan is structured as a five year term loan with quarterly interest payments calculated at an annual interest rate of U.S.
prime plus 10%, declining to U.S. prime plus 7% (or 5%) if certain annual earnings before interest, taxes, depreciation and amortization
thresholds are met. The loan is secured by a second charge over the assets located within Canada. Commencing March 31, 2017, the
loan principal is subject to four quarterly repayments of $250,000 followed by 16 quarterly repayments of $500,000. There is an
option to prepay a portion of, or the entire loan at any time, subsequent to March 31, 2017. Concurrent with the new loan agreement,
the Company issued EDC 200,575 share purchase warrants. Each warrant is exercisable for one common share of the Company at an exercise
price of US$6.85 per common share. The warrants are transferrable and expire on November 4, 2021.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Underwriting Agreement for December 2015 Offering



| | · | We entered into an underwriting agreement with Craig-Hallum Capital Group LLC as representative
of the underwriters, on December 11, 2015, with respect to a public offer in the United States of 2,448,385 common shares of the
Company, which included 319,354 common shares offered pursuant to an option granted to the underwriters to cover overallotments
in connection with such offering (which was exercised in full). We agreed to indemnify the underwriters against certain liabilities,
including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect
of such liabilities. The underwriters received a fee of US$1,091,061.57 for acting as underwriters of the offering.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            



FORM 20-FPage 72


Hydrogenics Corporation




Alstom



| | · | On
                                         May 27, 2015, we announced that we had signed a 10 year exclusive agreement to supply
                                         Alstom Transport with hydrogen fuel cell systems for Regional Commuter Trains in Europe.
                                         Alstom Transport is a unit of Alstom, a France-based global leader in power generation,
                                         transmission and rail infrastructure with sales of €6.2 billion for the year ended
                                         March 31, 2015. The agreement, valued at over €50 million, includes the supply of
                                         at least 200 engine systems along with service and maintenance as necessary over a 10
                                         year period. Hydrogenics was selected by Alstom following a rigorous technical review
                                         process. The fuel cell systems, based on the Company’s Heavy-Duty HD series fuel
                                         cells, will be developed to meet European train compliance regulations.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------







Syndicated Loan



| | · | On May 6, 2015, we entered into a loan agreement with a syndicate of lenders led by Cinnamon Investments
Limited for an 18 month facility of $7.5 million bearing interest at 11% per annum. This facility was repaid on its maturity date
of November 7, 2016. Concurrent with the new loan agreement, the Company issued the lenders 250,000 share purchase warrants. Each
warrant was exercisable for one common share of the Company at an exercise price of US$15.00 per common share. The warrants are
non-transferrable and expire on May 6, 2019. On December 16, 2015, as a result of a public offering, the exercise price of the
warrants was reduced to US$10.85 per common share.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Kolon Joint Venture



| | · | On May 28, 2014, we entered into a joint arrangement with Kolon Water and Energy, a South Korean
company, whereby the parties formed Kolon Hydrogenics to launch and market potential businesses based on products and technologies
produced by Hydrogenics for the Korean market. We contributed 2.45 billion Korean Won to the transaction (approximately $2.3 million)
for a 49% equity position in Kolon Hydrogenics and we share joint control. The Board of directors of the joint venture has four
directors consisting of two nominees from each of Hydrogenics and Kolon Water and Energy and all resolutions are adopted by an
affirmative vote of two-thirds.
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Enbridge Joint Development Agreement



| | · | On
                                         April 20, 2012, we entered into a joint development agreement with Enbridge Inc. (“Enbridge”)
                                         pursuant to which we agreed with Enbridge to work together to develop utility scale energy
                                         storage projects within Canada and the United States. The joint development agreement
                                         has a term of five years. Enbridge also subscribed for C$5 million of common shares of
                                         the Company. The subscription agreement for the common shares provided
                                         Enbridge with the right to participate in any sale or issuance of any equity securities
                                         or securities convertible or exchangeable into equity securities by the Company from
                                         the date of the subscription agreement until the 24 month anniversary of the subscription
                                         agreement. The subscription agreement also provides that Enbridge will have the right
                                         to designate one non-voting observer to the board of directors of the Company. The board
                                         observer right expires upon the reduction of Enbridge’s ownership of outstanding
                                         common shares of the Company below 5% for any reason.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The foregoing summaries are qualified in their
entirety by reference to the full text of the relevant agreement, which is filed as an exhibit hereto.





Exchange controls



There is no law, government decree or regulation
in Canada restricting the export or import of capital or affecting the remittance of dividends, interest or other payments to
a non-resident holder of common shares, other than withholding tax requirements.



Taxation



Because Canadian and United States tax consequences
may differ from one holder to the next, the discussion set out below does not purport to describe all of the tax considerations
that may be relevant to a shareholder in light of such shareholder’s particular circumstances. Accordingly, a shareholder
is advised to consult a tax advisor as to the United States and Canadian federal, provincial, state and other tax consequences
of owning our common shares. The statements of United States and Canadian tax law set out below are based on the laws and interpretations
in force as of the date of this annual report, and are subject to changes occurring after that date.





FORM 20-FPage 73


Hydrogenics Corporation




Canadian Federal Income Tax Considerations



The following is a general summary of the principal
Canadian federal income tax considerations applicable to a holder of our common shares who, for the purposes of the Income
Tax Act (Canada) (the “Income Tax Act”) and the Canada-United States Income Tax Convention (1980) (the “Convention”),
is a resident of the United States and is not and has not been a resident of Canada, does not have and has not had at any time,
a permanent establishment or fixed base in Canada and otherwise qualifies for the full benefits of the Convention, and who, for
the purposes of the Income Tax Act: (i) deals at arm’s length and is not affiliated with us; (ii) holds our common shares
as capital property; (iii) does not use or hold and is not deemed to use or hold our common shares in the course of carrying on,
or otherwise in connection with, a business in Canada; (iv) is not a “registered non-resident insurer” or “authorized
foreign bank,” each within the meaning of the Income Tax Act; and (v) does not carry on an insurance business in Canada
and elsewhere (a “US holder”).



Generally, our common shares will be capital
property to a US holder unless they are held in the course of carrying on a business of buying or selling securities or in an
adventure or concern in the nature of trade. This summary does not deal with special situations, such as the particular circumstances
of traders or dealers, United States limited liability companies (which may not be considered to be a resident of the United States
for the purposes of the Convention), tax-exempt entities, insurers or financial institutions. Such holders and other holders who
do not meet the criteria of a US holder described above should consult their own tax advisors. There are no Canadian federal estate
taxes applicable to the purchase or ownership of our common shares. Under the Income Tax Act, on death, a US holder would be deemed
to dispose of all of his or her assets, including our common shares.



This summary is based on the current provisions
of the Income Tax Act and the regulations in force under the Income Tax Act on the date of this annual report, the Convention,
the current administrative and assessing practices of the Canada Revenue Agency published
in writing prior to the date of this annual report, all specific proposals to amend the Income Tax Act and
the regulations publicly announced by the Minister of Finance (Canada) prior to the date of this annual report and all judicial
decisions currently in effect.



This summary is not exhaustive and, except for
the proposed amendments to the Income Tax Act, does not take into account or anticipate prospective or retrospective changes in
the law or the administrative or assessing practices of the Canada Revenue Agency, whether these changes are effected by judicial,
governmental or legislative action or interpretation. This summary does not take into account tax legislation or considerations
of any province or territory of Canada. Because Canadian tax consequences may differ from one US holder to the next, this summary
does not purport to describe all of the tax considerations that may be relevant to a US holder and their particular situation.
The Canadian tax treatment to a US holder may differ from the treatment described herein. US holders are advised to consult their
own tax advisor.



Dividends



Dividends paid, credited or deemed to have been
paid or credited on our common shares to a US holder are subject to non-refundable Canadian withholding tax under the Income Tax
Act at the rate of 25%, although this rate may be reduced by the provisions of the Convention. Subject to the exceptions noted
immediately below, under the Convention, US holders who beneficially own the dividends will be subject to a 15% withholding tax
on the gross amount of such dividends. In the case of a US holder that is a corporation that beneficially owns at least 10% of
our voting shares, the applicable rate of withholding tax on dividends will be reduced to 5%. In the case of dividends paid, credited
or deemed to be credited to a US holder that is a tax exempt organization as described in Article XXI of the Convention, generally
no withholding tax will be payable.





FORM 20-FPage 74


Hydrogenics Corporation


Dispositions



A US holder will generally not be subject to
tax under the Income Tax Act on any capital gain realized on a disposition of our common shares, unless the common shares constitute
“taxable Canadian property” of the US holder at the time of disposition and the US holder is not entitled to relief
under the Convention. Generally, our common shares will not constitute taxable Canadian property to a US holder provided our common
shares are listed on a “designated stock exchange” as defined in the Income Tax Act (which includes the TSX and Nasdaq)
at the time of the disposition unless: (a) (i) at any time during the 60-month period immediately preceding the disposition, the
US holder, persons with whom the US holder does not deal at arm’s length (within the meaning of the Income Tax Act), or
the US holder together with such persons, owned 25% or more of the issued shares of any series or class of our capital stock and
(ii) more than 50% of the fair market value of our common shares was derived directly or indirectly from one or any combination
of real or immovable property situated in Canada, “Canadian resource property” (as defined in the Income Tax Act),
“timber resource property” (as defined in the Income Tax Act) and options in respect of, or interests in, or civil
law rights in such property, whether or not such property exists; or (b) our common shares are deemed under the Income Tax Act
to be taxable Canadian property of the US holder. If our common shares constitute taxable Canadian property of a particular US
holder, any capital gain arising on their disposition may be exempt from Canadian tax under the Convention if, at the time of
disposition, our common shares do not derive their value principally from real property situated in Canada. US holders whose common
shares may constitute taxable Canadian property should consult their own tax advisors.



United States Federal Income Tax Considerations



The following discussion summarizes the material
US federal income tax consequences to a ‘‘US Holder’’ (as defined below) of the acquisition, ownership
and disposition of our common shares. This summary assumes that you hold your common shares as capital assets within the meaning
of Section 1221 of the US Internal Revenue Code of 1986, as amended (the “US Tax Code”). This summary does not purport
to be a complete analysis of all of the potential United States federal income tax considerations that may be relevant to a particular
holder’s acquisition, ownership or disposition of our common shares in light of such holder’s particular circumstances,
nor does it address the United States federal income tax consequences applicable to holders subject to special tax rules, including
without limitation banks, brokers, dealers in securities or currencies, traders in securities that elect to use a mark-to-market
method of accounting for their securities holdings, tax-exempt entities, insurance companies, persons liable for alternative minimum
tax, persons that actually or constructively own or have owned 5% or more of our common shares, persons that hold common shares
as part of a straddle or a hedge, constructive sale, synthetic security, conversion or other integrated transaction, partnerships
and other pass-through entities, persons whose functional currency is not the US dollar, financial institutions, and expatriates
of the United States. In addition, this summary does not address the tax consequences arising under the tax laws of any state,
local or foreign jurisdiction, nor does this summary address US federal estate or gift tax consequences.



If any entity that is classified as a partnership
for United States federal income tax purposes holds common shares, the US federal income tax treatment of its partners will generally
depend on the status of the partner and the activities of the partnership. Partnerships and other entities that are classified
as partnerships for United States federal income tax purposes and persons holding common shares through a partnership or other
entity classified as a partnership for United States federal income tax purposes are urged to consult their own tax advisors regarding
the consequences of the acquisition, ownership and disposition of our common shares.



No legal opinion from US legal counsel or ruling
from the United States Internal Revenue Service (“IRS”) has been requested, or will be obtained, regarding the US
federal income tax consequences of the acquisition, ownership, and disposition of common shares. This summary is not binding on
the IRS, and the IRS is not precluded from taking a position that is different from, and contrary to, the positions taken in this
summary.



This summary is based on the US Tax Code, the
Treasury regulations thereunder (the “Treasury Regulations”), published IRS rulings, the Convention, administrative
interpretations and judicial decisions, all as currently in effect. These authorities are subject to change, repeal or revocation,
possibly on a retroactive basis, which may result in United States federal income tax consequences different from those discussed
below.



For purposes of this summary, you are a ‘‘US
Holder’’ if you are a beneficial owner of common shares and you are for United States federal income tax purposes:
(i) an individual who is a citizen or resident of the United States; (ii) a corporation or other entity taxable as a corporation
created or organized under the laws of the United States or any political subdivision thereof; (iii) an estate whose income is
subject to United States federal income tax regardless of its source; or (iv) a trust: (a) if a United States court can exercise
primary supervision over the trust’s administration and one or more United States persons are authorized to control all
substantial decisions of the trust; or (b) that has a valid election in effect under applicable Treasury Regulations to be treated
as a United States person.





FORM 20-FPage 75


Hydrogenics Corporation






This summary does not discuss the United States
federal income tax consequences to any beneficial owner of common shares that is not a US Holder. Each US Holder is urged to consult
its own tax advisor regarding the tax consequences of the acquisition, ownership and disposition of common shares, including the
effects of United States federal, state, local, non-United States and other tax laws.



Taxation
of Distributions on Common Shares



Subject to the PFIC rules discussed below, the gross amount of
any actual or deemed distribution by us (including any Canadian taxes withheld therefrom) with respect to your common shares will
be included in your gross income as a dividend to the extent such distribution is paid out of our current or accumulated earnings
and profits, as determined under United States federal income tax principles. A distribution in excess of our current and accumulated
earnings and profits will first be treated as a tax-free return of capital to the extent of your adjusted tax basis in our common
shares and will be applied against and reduce such basis on a dollar-for-dollar basis. Thereafter, to the extent that such distribution
exceeds your adjusted tax basis in our common shares, the distribution will be treated as a gain from the sale or exchange of
such common shares. Dividends will not be eligible for the dividends received deduction generally allowed to United States corporations
in respect of dividends received from other United States corporations.



If you are a non-corporate US Holder, including an individual,
dividends you receive may be subject to United States federal income tax at the lower rates applicable to capital gains, provided
that: (i) we are a “qualified foreign corporation”; and (ii) certain holding period and other requirements are satisfied.
A qualified foreign corporation includes a non-United States corporation that is eligible for the benefits of a comprehensive
income tax treaty with the United States that includes an exchange of information program and that the United States Treasury
Department has determined to be satisfactory for purposes of the qualified dividend provisions of the US Tax Code. The United
States Treasury Department has determined that the Convention (as defined above) is satisfactory for purposes of the qualified
dividend provisions of the US Tax Code. In addition, a foreign corporation not otherwise treated as a qualified foreign corporation
shall be so treated with regard to any dividend paid by such corporation if the stock with respect to which the dividend is paid
is readily tradable on an established securities market in the United States. A qualified foreign corporation does not include
a non-United States corporation that is a PFIC for the taxable year in which a dividend is paid or that was a PFIC for the preceding
taxable year. Accordingly, dividends on our common shares will be eligible for these lower rates of taxation provided that: (i)
we are not a PFIC for the taxable year the dividend is paid or for the preceding taxable year; (ii) we are eligible for the benefits
of the Convention or our common shares are readily tradable on an established securities market in the United States; and (iii)
you satisfy certain holding period and other requirements. You should consult your own tax advisors regarding the application
of these rules. Additionally, a US Holder may be subject to an additional Medicare tax on unearned income of 3.8% (see “—
Additional Tax on Passive Income” below).



Any tax withheld under Canadian law with respect
to distributions on our common shares at a rate not exceeding the rate provided in the Convention may, subject to a number of
complex limitations, be claimed as a foreign tax credit against your US federal income tax liability or may be claimed as a deduction
for US federal income tax purposes. The limitation on foreign taxes eligible for credit is calculated separately with respect
to specific classes of income. For this purpose, dividends distributed with respect to our common shares will be foreign source
income and generally will constitute ‘‘passive category income’’ or, in the case of certain US Holders,
‘‘general category income.” The rules relating to United States foreign tax credits are complex and the availability
of a foreign tax credit depends on numerous factors. You should consult your own tax advisors concerning the application of the
United States foreign tax credit rules to your particular situation.



The gross amount of distributions paid in Canadian
dollars will be included by each US Holder in gross income in a US dollar amount calculated by reference to the exchange rate
in effect on the day the distributions are paid, regardless of whether the payment is in fact converted into US dollars on such
date. You will have a basis in the Canadian dollars equal to their US dollar value on the day the distributions are paid. If you
convert such Canadian dollars into US dollars on the date of the payment, you should not be required to recognize any foreign
currency gain or loss with respect to the receipt of the Canadian dollar distributions. If instead you convert such Canadian dollars
into US dollars at a later date, any foreign currency gain or loss realized from the conversion of the Canadian dollars will be
treated as US source ordinary income or loss.





FORM 20-FPage 76


Hydrogenics Corporation






Taxation
of Dispositions of Common Shares



Subject to the PFIC rules discussed below, upon a sale or other
taxable disposition of common shares, you generally will recognize capital gain or loss for United States federal income tax purposes
equal to the difference, if any, between the amount you realize and your adjusted tax basis in your common shares. Your adjusted
tax basis in our common shares generally will be the cost to you of such shares, as determined under United States federal income
tax principles. A non-corporate US Holder, including an individual, generally will be taxed at a preferential rate if the property
has been held for more than one year. A US Holder may also be subject to an additional Medicare tax on unearned income of 3.8%
(see “— Additional Tax on Passive Income” below). The deductibility of capital losses is subject to limitations.
The gain or loss generally will be a gain or loss from sources within the United States for United States foreign tax credit limitation
purposes.



If a US Holder receives any Canadian dollars
on the sale or other taxable disposition of our common shares, such US Holder may recognize ordinary income or loss as a result
of currency fluctuations between the date of the sale or other taxable disposition of our common shares and the date the sale
proceeds are converted into US dollars.



Passive
Foreign Investment Company Considerations



Special, generally adverse, United States federal
income tax rules apply to United States persons owning shares of a PFIC. A non-United States corporation will be classified as
a PFIC for United States federal income tax purposes in any taxable year in which, after applying relevant look-through rules
with respect to the income and assets of subsidiaries, either at least 75% of its gross income is ‘‘passive income,’’
or on average at least 50% of the gross value of its assets is attributable to assets that produce passive income or are held
for the production of passive income. For this purpose, passive income generally includes, among other things, dividends, interest,
certain rents and royalties and gains from the disposition of property that produces such income. If we are classified as a PFIC
for any taxable year in which you held our common shares, we may continue to be classified as a PFIC for any subsequent taxable
year in which you continue to hold our common shares, even if our income or assets would not cause us to be a PFIC in such subsequent
taxable year.



Based on our structure, and the composition of
our income and assets, we do not believe that we were a PFIC for the taxable year ended December 31, 2012 or the prior taxable
year. However, there can be no assurance the IRS will not successfully challenge our position or that we will not become a PFIC
in a future taxable year, as PFIC status is retested each year and depends on our assets and income in such year. If we are classified
as a PFIC at any time you hold our common shares, you may be subject to an increased United States federal income tax liability
and a special interest charge in respect of a gain recognized on the sale or other disposition of your common shares and upon
the receipt of certain ‘‘excess distributions’’ (as defined in the US Tax Code). Additionally, if we are
classified as a PFIC in any taxable year during which you own common shares, you must file an annual information return on IRS
Form 8621 reporting such ownership of common shares. The failure to file such annual information return could result in the imposition
of penalties on you and in the extension of the statute of limitations with respect to federal income tax returns filed by you.
However, this reporting requirement has been temporarily suspended in certain cases.



To mitigate the adverse consequences of the PFIC
tax regime, you may be eligible to make: (i) a ‘‘qualified electing fund’’ election (a QEF election),
as defined in the US Tax Code, to be taxed currently on your pro rata portion of our ordinary earnings and net capital gain, whether
or not such earnings or gain is distributed in the form of dividends or otherwise, or (ii) a ‘‘mark-to-market’’
election and thereby agree for the year of the election and each subsequent tax year to recognize ordinary gain or loss (but only
to the extent of prior ordinary gain) based on the increase or decrease in market value for such taxable year. Your tax basis
in our common shares would be adjusted to reflect any such income or loss.



In order for you to make a QEF election, we would
have to provide certain information regarding your pro rata share of our ordinary earnings and net capital gain. We currently
do not intend to provide such information in the event we are classified as a PFIC. In order for you to make a mark-to-market
election, our common shares must be ‘‘marketable.’’ We believe that our common shares should qualify as
marketable stock (although there can be no assurance this will continue to be the case).



You should consult your own tax advisors concerning
the United States federal income tax consequences of holding our common shares if we were a PFIC in any taxable year and its potential
application to your particular situation.





FORM 20-FPage 77


Hydrogenics Corporation






Information
Reporting and Backup Withholding



If you are a US Holder, information reporting
on IRS Form 1099 generally will apply with respect to: (i) dividend payments or other taxable distributions made to you within
the United States; and (ii) the payment of proceeds to you from the sale of common shares effected at a United States office of
a broker (and under certain circumstances at a non-United States office of a broker), unless you come within certain categories
of exempt recipients.



Additionally, backup withholding may apply to such payments if you are a non-corporate US Holder that does not come within certain
categories of exempt recipients and you: (i) fail to provide an accurate taxpayer identification number; (ii) are notified by
the IRS that you have failed to report all interest and dividends required to be shown on your United States federal income tax
returns; or (iii) in certain circumstances, fail to comply with other applicable requirements of the backup withholding rules.



A US Holder who does not provide a correct taxpayer
identification number may be subject to penalties imposed by the IRS. If backup withholding applies to you, under current law
28% of the gross amount of any payments to you with respect to our common shares will be withheld and paid over to the IRS.



Any amounts withheld from payments to you under
the backup withholding rules will be allowed as a credit against your United States federal income tax liability and may entitle
you to a refund, provided the required information is timely furnished to the IRS. You should consult your own tax advisor regarding
the application of backup withholding in your particular situation, the availability of an exemption from backup withholding,
and the procedure for obtaining such an exemption, if available.



Information Reporting with Respect to Foreign Financial Assets



US federal income tax legislation enacted during 2010 generally
requires a US individual to report to the IRS certain interests owned by such individual in stock or securities issued by a non-US
person (such as our common shares) on IRS Form 8938, if the aggregate value of all such interests exceeds $50,000. Upon the issuance
of future Treasury Regulations, these information reporting requirements may apply to certain U.S. entities that own specified
foreign financial assets. Failure to report information required under this legislation could result in substantial penalties
and in the extension of the statute of limitations with respect to federal income tax returns filed by you. You are urged to consult
your own tax advisors regarding the effect, if any, of this legislation on your ownership and disposition of the common shares.



Additional Tax on Passive Income



A US Holder who is an individual, an estate,
or a trust may be required to pay a 3.8% Medicare tax for taxable years beginning on or after January 1, 2013 on the lesser of
(i) such US Holder’s “modified adjusted gross income” (or “adjusted gross income” in the case of
an estate or a trust) over certain thresholds and (ii) such US Holder’s “net investment income” (or “undistributed
net investment income” in the case of an estate or a trust). Net investment income generally will include among other things,
dividends and capital gains. Such tax will apply to dividends in respect of and to capital gains from the disposition of your
common shares unless derived in the ordinary course of the conduct of a trade or business (other than a trade or business that
consists of certain passive or trading activities). Each US Holder should consult an independent tax advisor regarding the implications
of this additional tax.



Dividends and Paying
Agents



Not applicable.



Statement by Experts



Not applicable.



Documents on Display



Any statement in this Form 20-F about any
of our contracts or other documents is not necessarily complete. If the contract or document is filed as an exhibit to the Form 20-F,
the contract or document is deemed to modify the description contained in this Form 20-F. You must review the exhibits themselves
for a complete description of the contract or document.





FORM 20-FPage 78


Hydrogenics Corporation






You may review a copy of our filings with the
SEC, including exhibits and schedules filed with it, at the SEC’s Public Reference Room, 100 F Street, N.E., Washington,
D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information. In addition, the SEC maintains an Internet site
at http://www.sec.gov that contains reports and other information regarding issues that file electronically with the SEC. These
SEC filings are also available to the public from commercial document retrieval services.



We are required to file reports and other information
with the SEC under the Securities Exchange Act of 1934 and regulations under that act. As a foreign private issuer, we are exempt
from the rules under the Exchange Act prescribing the form and content of proxy statements and our officers, directors and principal
shareholders are exempt from the reporting and short swing profit recovery provisions contained in Section 16 of the Exchange
Act.



In addition, we are required to file documents
required by Canadian securities laws electronically with Canadian securities regulatory authorities and these filings are available
on our SEDAR profile at www.sedar.com. Written requests for such documents should be directed to our Corporate Secretary at 220
Admiral Boulevard, Mississauga, Ontario, Canada L5T 2N6.



Subsidiary Information



Not applicable.



|ITEM 11. |  | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
|-------- |  | ----------------------------------------------------------



For information regarding quantitative and qualitative
disclosures about market risk, please see “Item 5. Operating and Financial Review and Prospects – Liquidity and Capital
Resources.”



|ITEM 12. |  | DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES
|-------- |  | ------------------------------------------------------



Not applicable.









FORM 20-FPage 79


Hydrogenics Corporation


PART II



|ITEM 13. |  | DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
|-------- |  | -----------------------------------------------



None.



|ITEM 14. |  | MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
|-------- |  | ----------------------------------------------------------------------------



material modifications
to the rights of security holders



None.



Use of Proceeds



Not applicable.



|ITEM 15. |  | CONTROLS AND PROCEDURES
|-------- |  | -----------------------



EVALUATION OF DISCLOSURE
CONTROLS AND PROCEDURES



As of the end of the period covered by this Form 20-F,
an evaluation was carried out by our management, under the supervision, and with the participation, of our Chief Executive Officer
(the “CEO”) and Chief Financial Officer (the “CFO”), of the effectiveness of our disclosure controls and
procedures. Based on that evaluation, the CEO and CFO concluded that such disclosure controls and procedures were effective.



EVALUATION OF INTERNAL
CONTROLS



Our management is responsible for establishing and maintaining
adequate internal control over financial reporting. Internal control over financial reporting is a process designed by, or under
the supervision of, the CEO and the CFO and effected by the Board of Directors, management and other personnel to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external
purposes in accordance with IFRS.



Due to its inherent limitations, internal control over financial
reporting may not prevent or detect misstatements. Also, projections of any evaluation of the effectiveness of internal control
over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes
in conditions, or that the degree of compliance with the policies or procedures may deteriorate.



Management assessed the effectiveness of the Corporation’s
internal control over financial reporting at December 31, 2016, based on the criteria set forth in Internal Control Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission as published in 2013.  Based on
this assessment, management believes, at December 31, 2016, the Corporation’s internal control over financial reporting
is effective. Also, management determined there were no material weaknesses in the Corporation’s internal control over financial
reporting at December 31, 2016.



LIMITATIONS OF CONTROLS
AND PROCEDURES



Our management, including our CEO and CFO, believe
that any disclosure controls and procedures or internal control over financial reporting, no matter how well conceived and operated,
can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of
a control system must reflect the fact that there are resource constraints and the benefits of controls must be considered relative
to their costs. Because of the inherent limitations in all control systems, they cannot provide absolute assurance that all control
issues and instances of fraud if any, have been prevented or detected. These inherent limitations include the realities that judgments
in decision making can be faulty and that breakdowns can occur because of a simple error or mistake. Additionally, controls can
be circumvented by the individual acts of some persons, by collusion of two or more people, or by unauthorized override of the
control. The design of any system of controls is also based in part on certain assumptions about the likelihood of future events
and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.
Accordingly, because of the inherent limitations in a cost effective control system, misstatements due to error or fraud might
occur and not be detected.





FORM 20-FPage 80


Hydrogenics Corporation


Our management hereby confirms that our disclosure
controls and procedures are effective at the reasonable assurance level.



REPORTS ON INTERNAL
CONTROL OVER FINANCIAL REPORTING



Our management’s Report on Internal Control Over Financial Reporting can be found
on page F-3 in this form.



CHANGES IN INTERNAL
CONTROL OVER FINANCIAL REPORTING



During the year ended December 31, 2016,
there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely
to materially affect, our internal control over financial reporting.



|ITEM 16A. |  | AUDIT COMMITTEE FINANCIAL EXPERT
|--------- |  | --------------------------------



IDENTIFICATION OF
THE AUDIT COMMITTEE



We have a separately designated Audit Committee
established in accordance with Section 3(a) (58) (A) of the Securities Exchange Act of 1934. Our Audit Committee is comprised
of independent members: David C. Ferguson (Chair), Douglas S. Alexander, Michael Cardiff, Sara Elford and Don Lowry.



AUDIT COMMITTEE FINANCIAL
EXPERT



Our Board of Directors has determined it has
at least one Audit Committee financial expert serving on its Audit Committee. David C. Ferguson has been determined to be an Audit
Committee financial expert and is independent, as that term is defined by Nasdaq’s listing standards. The US Securities
and Exchange Commission has indicated that the designation of this individual as an Audit Committee financial expert does not
make him an “expert” for any purpose, or impose any duties, obligations or liabilities that are greater than those
imposed on members of the Audit Committee and Board of Directors who do not carry this designation or affect the duties, obligations
or liabilities of any other member of the Audit Committee or Board of Directors.



|ITEM 16B. |  | CODE OF ETHICS
|--------- |  | --------------



CODE OF ETHICS



We have adopted a written Code of Business Conduct and Ethics (the
“Code”) which governs the behaviour of our directors, officers, and employees. The Code also includes provisions required
by the Sarbanes-Oxley Act of 2002 that are applicable to our CEO, CFO and other senior financial officers. The Board of Directors,
through the Human Resources and Corporate Governance Committee, oversees compliance with the Code. Any amendments to, or waivers
from, any provisions of the Code will be publicly disclosed. The Code is also accessible on our investor relations web page at
www.hydrogenics.com.



FORM 20-FPage 81


Hydrogenics Corporation




|ITEM 16C. |  | PRINCIPAL ACCOUNTANT FEES AND SERVICES
|--------- |  | --------------------------------------



PRINCIPAL ACCOUNTANT
FEES AND SERVICES



The following table sets forth the total remuneration that was
paid by us and our subsidiaries to our independent accountants, PricewaterhouseCoopers
LLP (“PwC”), in each of the year ended December 31, 2016 and 2015:



|Fee (CA$)
        Unaudited | 2016        | 2015      
|--------------------------- | ----------- | ----------
|Audit
    Fees              | CA$493,482  | CA$609,580
|Audit-Related
    Fees      | CA$32,410   | CA$7,889  
|Tax
    Fees                | CA
    $nil | CA$3,231  
|All
    Other Fees          | CA$88,786   | CA$19,014 
|Total
    fees              | CA$614,678  | CA$639,714



Audit Fees



In 2016 and 2015, these fees included professional services rendered
for the review of interim consolidated financial statements, statutory audits of annual consolidated financial statements, consultations
about financial and reporting standards and other regulatory audits and filings, including United States Sarbanes-Oxley Act of
2002 (“SOX”) compliance and International Financial Reporting Standards.



Audit-Related Fees



In 2016 and 2015, these fees included professional services that
reasonably relate to the above services and Canadian Public Accounting Board Fees.



Tax Fees



In 2015, these fees included professional services for tax compliance,
tax advice, tax planning and advisory services relating to the preparation of corporate tax returns.



All Other Fees



In 2016, these fees related to audit fees related to the public
offering completed on December 16, 2015. In 2015, these fees related to audit fees for research & development funded audit
requirements.



Pre-Approval Policies



Our Audit Committee approved all audit and non-audit services provided
to us and to our subsidiaries during the periods listed above. Our Audit Committee has adopted pre-approval policies and procedures
to ensure all services provided by the auditors are approved in advance by the Audit Committee or are approved by the Chair of
the Audit Committee and subsequently reported to the committee as a whole at the following meeting of the committee, all in accordance
with the external auditors’ pre-approval policy.



|ITEM 16D. |  | EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES
|--------- |  | ----------------------------------------------------------



Not applicable.





FORM 20-FPage 82


Hydrogenics Corporation




|ITEM 16E. |  | PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS
|--------- |  | ----------------------------------------------------------------------



None.



|ITEM 16F. |  | CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT
|--------- |  | --------------------------------------------



None.



|ITEM 16G. |  | CORPORATE GOVERNANCE
|--------- |  | --------------------



We are a foreign private issuer and our common shares are listed
on the Nasdaq. Nasdaq Rule 5615(a)(3) permits a foreign private issuer to follow its home country practice in lieu of the
requirements of the Rule 5600 Series, provided, however, that such an issuer shall: comply with Rules 5625 (regarding
notification of material non-compliance); 5640 (regarding voting rights), have an Audit Committee that satisfies Rule 5605(c)(3);
and ensure that such Audit Committee’s members meet the independence requirements in Rule 5605(c)(2)(A)(ii). We are
intending not to follow Rule 5620(c) (shareholder quorum) and Rule 5605(b) (majority independent director requirement) but instead
to follow the practice described below.



Shareholder Meeting Quorum Requirements.
The Nasdaq minimum quorum requirement under Rule 5620(c) for a shareholder meeting is 33-1/3% of the outstanding shares of common
stock. In addition, a company listed on Nasdaq is required to state its quorum requirement in its by-laws. On March 7, 2008, our
Board of Directors approved an amendment to our by-laws to provide that the quorum requirement for a meeting of our shareholders
is two persons present in person or represented by proxy holding in the aggregate not less than 25% of the outstanding common
shares entitled to vote at the meeting. This amendment was approved by our shareholders at an annual and special meeting of shareholders
on May 6, 2008. We believe the foregoing is consistent with Canadian public companies and consistent with corporate governance
best practices in Canada.



Independent Director Requirements.
Nasdaq Rule 5605(b) requires a majority of independent directors on the Board of Directors and that the independent directors
convene regularly scheduled meetings at least twice a year at which only independent directors are present. The CBCA requires
a “distributing corporation” to have at least two directors who are not officers or employees of the corporation or
its affiliates. There are seven members of our Board. Five of the Company’s directors are “independent.” The
Board’s determination as to each director’s independence is made with reference to definitions under applicable securities
laws and stock exchange regulations. In order to facilitate open and candid discussions among independent directors, independent
directors may meet at the end of each regularly scheduled Board meeting, in an in camera session without the non-independent members.
From time to time, the independent directors will have a special meeting with only independent directors. In addition, we believe
the fact that our Audit Committee and Human Resources and Corporate Governance Committee are both composed entirely of independent
directors facilitates the Board’s exercise of independent judgment. As described under “Item 6. Directors, Senior
Management and Employees – Board Practices – Human Resources and Corporate Governance Committee – Nomination
of Directors and Compensation,” the Human Resources and Corporate Governance Committee has oversight over executive compensation
and director nominations.





FORM 20-FPage 83


Hydrogenics Corporation


PART III



|ITEM 17. |  | FINANCIAL STATEMENTS
|-------- |  | --------------------



Not applicable.



|ITEM 18. |  | FINANCIAL STATEMENTS
|-------- |  | --------------------



The following financial statements are filed as part of this annual
report on Form 20-F.



|                                                                     |  | Page
|-------------------------------------------------------------------- |  | ----
|Index to Consolidated Financial Statements                           |  | F-1 
|Management’s Responsibility for Financial Reporting                  |  | F-2 
|Management’s Report on Internal Control Over Financial
    Reporting |  | F-3 
|Independent Auditors’ Report                                         |  | F-4 
|Consolidated Balance Sheets                                          |  | F-7 
|Consolidated Statements of Operations                                |  | F-8 
|Consolidated Statements of Shareholders’ Equity                      |  | F-9 
|Consolidated Statements of Cash Flows                                |  | F-10
|Notes to Consolidated Financial Statements                           |  | F-11

























2016 Consolidated Financial StatementsF-1


Hydrogenics Corporation


Management’s Responsibility for Financial Reporting



Management’s Discussion and Analysis of Financial
Condition and Results of Operations and the consolidated financial statements have been prepared by management and approved by
the Board of Directors of Hydrogenics Corporation (the “Company”). The consolidated financial statements were prepared
in accordance with International Financial Reporting Standards and where appropriate, reflect management’s best estimates
and judgments. Where alternative accounting methods exist, management has chosen those methods considered most appropriate in
the circumstances. Management is responsible for the accuracy, integrity and objectivity of the consolidated financial statements
within reasonable limits of materiality, and for maintaining a system of internal controls over financial reporting as described
in “Management’s Report on Internal Control Over Financial Reporting.” Management is also responsible for the
preparation and presentation of other financial information included in the Annual Report and its consistency with the consolidated
financial statements.



The Audit Committee, which is appointed annually by the
Board of Directors and comprised exclusively of independent directors, meets with management as well as with the independent auditors
to satisfy itself that management is properly discharging its financial reporting responsibilities and to review the consolidated
financial statements and the independent auditor’s report.



The Audit Committee reports its findings to the Board
of Directors for consideration in approving the consolidated financial statements for presentation to the shareholders.



The Audit Committee considers, for review by the Board
of Directors and approval by the shareholders, the engagement or reappointment of the independent auditors.



The shareholders’ auditors have full access to
the Audit Committee, with and without management being present, to discuss the consolidated financial statements and to report
their findings from the audit process. The consolidated financial statements have been audited by the shareholders’ independent
auditors, PricewaterhouseCoopers LLP, Chartered Professional Accountants, and their report is provided herein.













|                                                                 |                                            
|---------------------------------------------------------------- | -------------------------------------------
|Daryl C. F. Wilson
        President and Chief Executive Officer | Robert Motz
        Chief Financial Officer



March 7, 2017

Mississauga, Ontario





2016 Consolidated Financial StatementsF-2


Hydrogenics Corporation


Management’s Report on Internal Control Over Financial
Reporting



Management of the Company is responsible for establishing
and maintaining adequate internal control over financial reporting. Internal control over financial reporting is a process designed
by, or under the supervision of, the President and Chief Executive Officer and the Chief Financial Officer and is effected by
the Board of Directors, management and other personnel to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of consolidated financial statements for external purposes in accordance with International Financial
Reporting Standards. It includes those policies and procedures that:



| | • | provide reasonable assurance
                                         regarding prevention or timely detection of unauthorized acquisition, use or disposition
                                         of the Company’s assets that could have a material effect on the Company’s
                                         consolidated financial statements;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | pertain to the maintenance
                                         of records that accurately and fairly reflect, in reasonable detail, the transactions
                                         related to and dispositions of the Company’s assets; and
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | provide reasonable assurance
                                         that transactions are recorded as necessary to permit preparation of consolidated financial
                                         statements in accordance with International Financial Reporting Standards, and that the
                                         Company’s receipts and expenditures are made only in accordance with authorizations
                                         of management and the Company’s directors.
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Due to its inherent limitations, internal control over financial
reporting may not prevent or detect misstatements. Also, projections of any evaluation of the effectiveness of internal control
over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes
in conditions, or that the degree of compliance with the policies or procedures may deteriorate.



Management assessed the effectiveness of the Company’s
internal control over financial reporting at December 31, 2016, based on the criteria set forth in Internal Control – Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission as published in 2013. Based on this assessment
and those criteria, management concluded that as at December 31, 2016, the Corporation’s internal control over financial
reporting was effective.



The effectiveness of the Company's internal control over
financial reporting as of December 31, 2016 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting
firm, as stated in their report, which is included in the Company’s audited financial statements.











|                                                                 |                                            
|---------------------------------------------------------------- | -------------------------------------------
|Daryl C. F. Wilson
        President and Chief Executive Officer | Robert Motz
        Chief Financial Officer



March 7, 2017

Mississauga, Ontario





2016 Consolidated Financial StatementsF-3


Hydrogenics Corporation










March 7, 2017





Independent Auditor’s Report



To the Shareholders of

Hydrogenics Corporation





We have completed integrated audits of Hydrogenics Corporation and
its subsidiaries’ 2016, 2015 and 2014 consolidated financial statements and their internal control over financial reporting
as at December 31, 2016. Our opinions, based on our audits are presented below.



Report on the consolidated financial statements

We have audited the accompanying consolidated financial statements
of Hydrogenics Corporation and its subsidiaries, which comprise the consolidated balance sheets as at December 31, 2016 and December
31, 2015 and the consolidated statements of operations and comprehensive loss, consolidated statements of changes in equity, and
consolidated statements of cash flows for the years ended December 31, 2016, December 31, 2015 and December 31, 2014, and the related
notes, which comprise a summary of significant accounting policies and other explanatory information.



Management’s responsibility for the consolidated
financial statements

Management is responsible for the preparation and fair
presentation of these consolidated financial statements in accordance with International Financial Reporting Standards as issued
by the International Accounting Standards Board and for such internal control as management determines is necessary to enable the
preparation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.



Auditor’s responsibility

Our responsibility is to express an opinion on these consolidated
financial statements based on our audits. We conducted our audits in accordance with Canadian generally accepted auditing standards
and the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the consolidated financial statements are free from material misstatement.
Canadian generally accepted auditing standards also require that we comply with ethical requirements.









2016 Consolidated Financial StatementsF-4


Hydrogenics Corporation








An audit involves performing procedures to obtain audit evidence,
on a test basis, about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on
the auditor’s judgment, including the assessment of the risks of material misstatement of the consolidated financial statements,
whether due to fraud or error. In making those risk assessments, the auditor considers internal control relevant to the company’s
preparation and fair presentation of the consolidated financial statements in order to design audit procedures that are appropriate
in the circumstances. An audit also includes evaluating the appropriateness of accounting principles and policies used and the
reasonableness of accounting estimates made by management, as well as evaluating the overall presentation of the consolidated financial
statements.



We believe that the audit evidence we have
obtained in our audits is sufficient and appropriate to provide a basis for our audit opinion on the consolidated financial statements.



Opinion

In our opinion, the consolidated financial statements present fairly,
in all material respects, the financial position of Hydrogenics Corporation and its subsidiaries as at December 31, 2016 and December
31, 2015 and their financial performance and their cash flows for the years ended December 31, 2016, December 31, 2015 and December
31, 2014 in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.



Report on internal control over financial reporting

We have also audited Hydrogenics Corporation and its subsidiaries’
internal control over financial reporting as at December 31, 2016 based on criteria established in Internal Control - Integrated
Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).



Management’s responsibility for internal control over financial
reporting

Management is responsible for maintaining effective internal control
over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the
accompanying Management’s Report on Internal Control over Financial Reporting



Auditor’s responsibility

Our responsibility is to express an opinion on the company’s
internal control over financial reporting based on our audit. We conducted our audit of internal control over financial reporting
in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that
we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting
was maintained in all material respects.



An audit of internal control over financial reporting
includes obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists,
testing and evaluating the design and operating effectiveness of internal control, based on the assessed risk, and performing such
other procedures as we consider necessary in the circumstances.











2016 Consolidated Financial StatementsF-5


Hydrogenics Corporation






We believe that our audit provides a reasonable basis
for our audit opinion on the company’s internal control over financial reporting.



Definition of internal control over financial reporting

A company’s internal control over financial reporting is a
process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control
over financial reporting includes those policies and procedures that: (i) pertain to the maintenance of records that, in reasonable
detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance
that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted
accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations
of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial
statements.



Inherent limitations

Because of its inherent limitations, internal control over financial
reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject
to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies
or procedures may deteriorate.



Opinion

In our opinion, Hydrogenics Corporation and its subsidiaries maintained,
in all material respects, effective internal control over financial reporting as at December 31, 2016, based on criteria established
in Internal Control - Integrated Framework (2013) issued by COSO.





/s/ PricewaterhouseCoopers LLP





Chartered Professional Accountants, Licensed Public Accountants

Toronto, Ontario











2016 Consolidated Financial StatementsF-6


Hydrogenics Corporation




Hydrogenics Corporation

Consolidated Balance Sheets

(in thousands of US dollars)



|                                          |  |   | December 31,2016 |   |  |   | December 31,2015 |  
|----------------------------------------- |  | - | ---------------- | - |  | - | ---------------- | -
|                                          |  |   |                  |   |  |   |                  |  
|Assets                                    |  |   |                  |   |  |   |                  |  
|Current assets                            |  |   |                  |   |  |   |                  |  
|Cash and cash equivalents (note 6)        |  | $ | 10,338           |   |  | $ | 23,398           |  
|Restricted cash (note 6)                  |  |   | 405              |   |  |   | 971              |  
|Trade and other receivables (note 7)      |  |   | 9,802            |   |  |   | 10,419           |  
|Inventories (note 8)                      |  |   | 17,208           |   |  |   | 14,270           |  
|Prepaid expenses                          |  |   | 918              |   |  |   | 428              |  
|                                          |  |   | 38,671           |   |  |   | 49,486           |  
|Non-current assets                        |  |   |                  |   |  |   |                  |  
|Restricted cash (note 6)                  |  |   | 535              |   |  |   | 532              |  
|Investment in joint venture (note 9)      |  |   | 1,750            |   |  |   | 1,951            |  
|Property, plant and equipment (note 10)   |  |   | 4,095            |   |  |   | 3,049            |  
|Intangible assets (note 11)               |  |   | 203              |   |  |   | 215              |  
|Goodwill (note 12)                        |  |   | 4,019            |   |  |   | 4,135            |  
|                                          |  |   | 10,602           |   |  |   | 9,882            |  
|Total assets                              |  | $ | 49,273           |   |  | $ | 59,368           |  
|                                          |  |   |                  |   |  |   |                  |  
|Liabilities                               |  |   |                  |   |  |   |                  |  
|Current liabilities                       |  |   |                  |   |  |   |                  |  
|Operating borrowings (note 16)            |  | $ | 2,111            |   |  | $ | 1,086            |  
|Trade and other payables (note 13)        |  |   | 7,235            |   |  |   | 7,776            |  
|Financial liabilities (note 14)           |  |   | 3,939            |   |  |   | 9,034            |  
|Warranty provisions (note 15)             |  |   | 1,221            |   |  |   | 2,255            |  
|Deferred revenue                          |  |   | 10,788           |   |  |   | 10,146           |  
|                                          |  |   | 25,294           |   |  |   | 30,297           |  
|Non-current liabilities                   |  |   |                  |   |  |   |                  |  
|Other non-current liabilities (note 17)   |  |   | 9,262            |   |  |   | 3,121            |  
|Non-current warranty provisions (note 15) |  |   | 841              |   |  |   | 938              |  
|Non-current deferred revenue              |  |   | 3,494            |   |  |   | 4,764            |  
|                                          |  |   | 13,597           |   |  |   | 8,823            |  
|Total liabilities                         |  |   | 38,891           |   |  |   | 39,120           |  
|Equity                                    |  |   |                  |   |  |   |                  |  
|Share capital (note 18)                   |  |   | 365,923          |   |  |   | 365,824          |  
|Contributed surplus                       |  |   | 19,255           |   |  |   | 18,964           |  
|Accumulated other comprehensive loss      |  |   | (3,623           | ) |  |   | (3,224           | )
|Deficit                                   |  |   | (371,173         | ) |  |   | (361,316         | )
|Total equity                              |  |   | 10,382           |   |  |   | 20,248           |  
|Total equity and liabilities              |  | $ | 49,273           |   |  | $ | 59,368           |  



Guarantees and Contingencies (notes 16 and 28)







|                                   |                                   
|---------------------------------- | ----------------------------------
|Douglas S. Alexander
        Chair | David C. Ferguson
        Director

The accompanying notes form an integral part of these consolidated financial statements.





2016 Consolidated Financial StatementsF-7


Hydrogenics Corporation




Hydrogenics Corporation

Consolidated Statements of Operations
and Comprehensive Loss

For the years ended December 31,

(in thousands of US dollars, except share and per share amounts)



|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|-------------------------------------------------------------- |  | - | ---------- | - |  | - | ---------- | - |  | - | --------- | -
|                                                               |  |   | 2016       |   |  |   | 2015       |   |  |   | 2014      |  
|Revenues                                                       |  | $ | 28,990     |   |  | $ | 35,864     |   |  | $ | 45,548    |  
|Cost of sales                                                  |  |   | 22,995     |   |  |   | 29,893     |   |  |   | 34,334    |  
|Gross profit                                                   |  |   | 5,995      |   |  |   | 5,971      |   |  |   | 11,214    |  
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Operating expenses                                             |  |   |            |   |  |   |            |   |  |   |           |  
|Selling, general and administrative expenses (note 20)         |  |   | 10,825     |   |  |   | 10,215     |   |  |   | 11,756    |  
|Research and product development expenses (note 21)            |  |   | 3,576      |   |  |   | 4,070      |   |  |   | 3,284     |  
|                                                               |  |   | 14,401     |   |  |   | 14,285     |   |  |   | 15,040    |  
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Loss from operations                                           |  |   | (8,406     | ) |  |   | (8,314     | ) |  |   | (3,826    | )
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Finance income (loss)                                          |  |   |            |   |  |   |            |   |  |   |           |  
|Interest expense, net                                          |  |   | (1,762     | ) |  |   | (1,322     | ) |  |   | (540      | )
|Foreign currency gains (losses), net(1)                        |  |   | (268       | ) |  |   | (428       | ) |  |   | 117       |  
|Loss from joint venture (note 9)                               |  |   | (156       | ) |  |   | (40        | ) |  |   | (94       | )
|Other finance gains (losses), net (note 25)                    |  |   | 735        |   |  |   | (1,338     | ) |  |   | (180      | )
|Finance income (loss), net                                     |  |   | (1,451     | ) |  |   | (3,128     | ) |  |   | (697      | )
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Loss before income taxes                                       |  |   | (9,857     | ) |  |   | (11,442    | ) |  |   | (4,523    | )
|Income tax expense (note 26)                                   |  |   | -          |   |  |   | -          |   |  |   | -         |  
|Net loss for the period                                        |  |   | (9,857     | ) |  |   | (11,442    | ) |  |   | (4,523    | )
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Items that will not be reclassified subsequently to net loss:  |  |   |            |   |  |   |            |   |  |   |           |  
|Re-measurement of actuarial liability                          |  |   | (101       | ) |  |   | (104       | ) |  |   | 64        |  
|Items that may be reclassified subsequently to net loss        |  |   |            |   |  |   |            |   |  |   |           |  
|Exchange differences on translating foreign  operations        |  |   | (298       | ) |  |   | (1,284     | ) |  |   | (1,651    | )
|Comprehensive loss for the period                              |  | $ | (10,256    | ) |  | $ | (12,830    | ) |  | $ | (6,110    | )
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Net loss per share                                             |  |   |            |   |  |   |            |   |  |   |           |  
|Basic and diluted (note 27)                                    |  | $ | (0.79      | ) |  | $ | (1.12      | ) |  | $ | (0.47     | )
|                                                               |  |   |            |   |  |   |            |   |  |   |           |  
|Weighted average number of common shares outstanding (note 27) |  |   | 12,542,950 |   |  |   | 10,199,015 |   |  |   | 9,718,349 |  



| | (1) | For the year
                                         ended December 31, 2016, a loss of $98 relates to foreign exchange on borrowings. For
                                         the year ended December 31, 2015, a gain of $586 relates to foreign exchange on borrowings.
                                         For the year ended December 31, 2014, a gain of $293 relates to foreign exchange on borrowings.
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The accompanying notes form an integral part of these consolidated financial statements.





2016 Consolidated Financial StatementsF-8


Hydrogenics Corporation


Hydrogenics Corporation

Consolidated Statements of Changes
in Equity

(in thousands of US dollars, except share and per share amounts)





|                                                                          |  | Common shares |            | Contributed |  |         |         | Accumulated  other comprehensive |  | Total  
|------------------------------------------------------------------------- |  | ------------- | ---------- | ----------- |  | ------- | ------- | -------------------------------- |  | -------
|                                                                          |  | Number        |            | Amount      |  | surplus |         | Deficit                          |  | loss(1)
|Balance at December 31, 2013                                              |  |               | 9,017,617  |             |  | $       | 333,312 |                                  |  | $      
|Net loss                                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Other comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Total comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Issuance of common shares and warrants exercised (note 18)                |  |               | 1,057,144  |             |  |         | 14,762  |                                  |  |        
|Issuance of common shares on exercise of stock options (note 19)          |  |               | 15,564     |             |  |         | 185     |                                  |  |        
|Stock-based compensation expense (note 19)                                |  |               | -          |             |  |         | -       |                                  |  |        
|Balance at December 31, 2014                                              |  |               | 10,090,325 |             |  | $       | 348,259 |                                  |  | $      
|Net loss                                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Other comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Total comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Transfer                                                                  |  |               |            |             |  |         |         |                                  |  |        
|Issuance of common shares (note 18)                                       |  |               | 2,448,385  |             |  |         | 17,549  |                                  |  |        
|Adjustment for partial shares on share consolidation                      |  |               | (3         | )           |  |         | -       |                                  |  |        
|Issuance of common shares on exercise of stock options (note 19)          |  |               | 2,050      |             |  |         | 16      |                                  |  |        
|Stock-based compensation expense (note 19)                                |  |               | -          |             |  |         | -       |                                  |  |        
|Balance at December 31, 2015                                              |  |               | 12,540,757 |             |  | $       | 365,824 |                                  |  | $      
|Net loss                                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Other comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Total comprehensive loss                                                  |  |               | -          |             |  |         | -       |                                  |  |        
|Issuance of common shares on vesting of performance share units (note 19) |  |               | 4,203      |             |  |         | 99      |                                  |  |        
|Stock-based compensation expense (note 19)                                |  |               | -          |             |  |         | -       |                                  |  |        
|Balance at December 31, 2016                                              |  |               | 12,544,960 |             |  | $       | 365,923 |                                  |  | $      





| | (1) | Accumulated other comprehensive loss
                                         represents currency translation adjustments of $3,482 as of December 31, 2016 (2015 -
                                         $3,184, 2014 - $1,900), and loss on re-measurement of actuarial liability of ($141) as
                                         of December 31, 2016 (2015 - $40, 2014 - $208).
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The authorized share capital of the Company consists of an unlimited number of common
shares, with no par value, and an unlimited number of preferred shares in series, with no par value.





The accompanying notes form an integral part of these consolidated financial statements.





2016 Consolidated Financial StatementsF-9


Hydrogenics Corporation




Hydrogenics Corporation

Consolidated Statements of Cash Flows

For the years ended December 31,

(in thousands of US dollars)



|                                                                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|-------------------------------------------------------------------------------------------------------------------- |  | - | ------- | - |  | - | ------- | - |  | - | ------- | -
|                                                                                                                     |  |   | 2016    |   |  |   | 2015    |   |  |   | 2014    |  
|Cash and cash equivalents provided by (used in):                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|Operating activities                                                                                                 |  |   |         |   |  |   |         |   |  |   |         |  
|Net loss for the period                                                                                              |  | $ | (9,857  | ) |  | $ | (11,442 | ) |  | $ | (4,523  | )
|Decrease (increase) in restricted cash                                                                               |  |   | 542     |   |  |   | 2,172   |   |  |   | (1,825  | )
|Items not affecting cash                                                                                             |  |   |         |   |  |   |         |   |  |   |         |  
|Loss on disposal of assets                                                                                           |  |   | 5       |   |  |   | 9       |   |  |   | 1       |  
|Amortization and depreciation                                                                                        |  |   | 751     |   |  |   | 630     |   |  |   | 661     |  
|Unrealized other gains and losses on hedging (note 25)                                                               |  |   | -       |   |  |   | 43      |   |  |   | -       |  
|Other finance losses (gains), net (note 25)                                                                          |  |   | (760    | ) |  |   | 752     |   |  |   | 180     |  
|Unrealized foreign exchange losses (gains)                                                                           |  |   | 146     |   |  |   | (369    | ) |  |   | 259     |  
|Unrealized loss on joint venture (note 9)                                                                            |  |   | 156     |   |  |   | 40      |   |  |   | 94      |  
|Portion of borrowings recorded as a reduction of research and development expenses                                   |  |   | -       |   |  |   | -       |   |  |   | (355    | )
|Accreted non-cash and unpaid interest  and amortization of deferred financing fees (note 17 (i), (ii) and (iv))      |  |   | 1,086   |   |  |   | 920     |   |  |   | 480     |  
|Payment of post-retirement benefit liability (note 17(iii))                                                          |  |   | -       |   |  |   | -       |   |  |   | (85     | )
|Stock-based compensation (note 18)                                                                                   |  |   | 390     |   |  |   | 43      |   |  |   | 544     |  
|Stock-based compensation - DSU’s and cash-settled RSUs (note 19)                                                     |  |   | (290    | ) |  |   | (234    | ) |  |   | 82      |  
|Net change in non-cash operating assets and liabilities (note 30)                                                    |  |   | (5,382  | ) |  |   | 1,598   |   |  |   | (10,457 | )
|Cash used in operating activities                                                                                    |  |   | (13,213 | ) |  |   | (5,838  | ) |  |   | (14,944 | )
|                                                                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|Investing activities                                                                                                 |  |   |         |   |  |   |         |   |  |   |         |  
|Investment in joint venture (note 9)                                                                                 |  |   | -       |   |  |   | -       |   |  |   | (2,307  | )
|Proceeds from disposals of property, plant and equipment (note 10)                                                   |  |   | -       |   |  |   | -       |   |  |   | 10      |  
|Purchase of property, plant and equipment (note 10)                                                                  |  |   | (2,955  | ) |  |   | (2,028  | ) |  |   | (871    | )
|Receipt of IDF government funding (note 28)                                                                          |  |   | 1,201   |   |  |   | 118     |   |  |   | -       |  
|Purchase of intangible assets (note 11)                                                                              |  |   | (48     | ) |  |   | (105    | ) |  |   | (110    | )
|Cash used in investing activities                                                                                    |  |   | (1,802  | ) |  |   | (2,015  | ) |  |   | (3,278  | )
|                                                                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|Financing activities                                                                                                 |  |   |         |   |  |   |         |   |  |   |         |  
|Repayment of long-term debt - institutional                                                                          |  |   | (7,500  | ) |  |   | -       |   |  |   | -       |  
|Repayment of repayable government contributions and  long-term debt
    - Province of Ontario (note 17(ii) and (iv)) |  |   | (374    | ) |  |   | (213    | ) |  |   | (498    | )
|Proceeds of borrowings, net of transaction costs (note 16, and 17(i))                                                |  |   | 8,715   |   |  |   | 6,866   |   |  |   | 854     |  
|Proceeds of operating borrowings (note 16)                                                                           |  |   | 1,072   |   |  |   | 1,113   |   |  |   | -       |  
|Common shares issued and stock options exercised, net of issuance costs (note 18)                                    |  |   | -       |   |  |   | 17,559  |   |  |   | 13,666  |  
|Cash provided by financing activities                                                                                |  |   | 1,913   |   |  |   | 25,325  |   |  |   | 14,022  |  
|                                                                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|Increase (decrease) in cash and cash equivalents during the period                                                   |  |   | (13,102 | ) |  |   | 17,472  |   |  |   | (4,200  | )
|Cash and cash equivalents - Beginning of period                                                                      |  |   | 23,398  |   |  |   | 6,572   |   |  |   | 11,823  |  
|Effect of exchange rate fluctuations on cash and cash equivalents held                                               |  |   | 42      |   |  |   | (646    | ) |  |   | (1,051  | )
|Cash and cash equivalents - End of period                                                                            |  | $ | 10,338  |   |  | $ | 23,398  |   |  | $ | 6,572   |  
|                                                                                                                     |  |   |         |   |  |   |         |   |  |   |         |  
|Supplemental disclosure                                                                                              |  |   |         |   |  |   |         |   |  |   |         |  
|Income taxes paid                                                                                                    |  | $ | -       |   |  | $ | -       |   |  | $ | -       |  
|Interest paid                                                                                                        |  | $ | 720     |   |  | $ | 432     |   |  | $ | 10      |  



The accompanying notes form an integral part of these consolidated
financial statements.





2016 Consolidated Financial StatementsF-10


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 1 - Description of Business



Hydrogenics Corporation and its subsidiaries (“Hydrogenics”
or the “Corporation” or the “Company”) design, develop and manufacture hydrogen generation products based
on water electrolysis technology, and fuel cell products based on proton exchange membrane (“PEM”) technology. The
Company has manufacturing plants in Canada and Belgium, a satellite facility in Germany, and branch offices in Russia and Indonesia.
Its products are sold throughout the world.



Hydrogenics is incorporated and domiciled in Canada. The address
of the Company’s registered head office is 220 Admiral Boulevard, Mississauga, Ontario, Canada. The Company’s shares
trade under the symbol “HYG” on the Toronto Stock Exchange and under the symbol “HYGS” on NASDAQ.



Note 2 - Basis of Preparation



These consolidated financial statements have been prepared in accordance
with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board
(“IASB”) applicable to the preparation of consolidated financial statements.



The preparation of consolidated financial statements in accordance
with IFRS requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial
statements and notes to the consolidated financial statements. These estimates are based on management’s experience and
other factors, including expectations about future events that are believed to be reasonable under the circumstances. The most
significant estimates relate to revenue recognition and warranty provisions (see note 4).



On March 7, 2017, the Board of Directors authorized the consolidated
financial statements for issue.



Note 3 - Summary of Significant Accounting Policies



The consolidated financial statements of the Company include the
accounts of Hydrogenics and all of its wholly-owned subsidiaries. All intercompany transactions, balances and unrealized gains
or losses on transactions between group companies have been eliminated. Accounting policies of subsidiaries have been changed,
where necessary, to ensure consistency with the policies adopted by the Company. Subsidiaries include all entities controlled
by the Company. Control exists when the Company is exposed or has rights, to variable returns from the Company’s involvement,
and has the ability to affect those returns through the Company’s power over the subsidiary. The existence and potential
voting rights presently exercisable or convertible are considered when assessing whether the Company controls another entity.
Subsidiaries are fully consolidated from the date on which control was obtained by the Company and are deconsolidated from the
date on which control ceased. The consolidated financial statements have been prepared under the historical cost convention, except
for the revaluation of certain financial assets and financial liabilities to fair value.



Investments in joint ventures



Investments in joint ventures, over which the Company has joint
control, are accounted for using the equity method. Under the equity method of accounting, investments are initially recorded
at cost, and the carrying amount is increased or decreased to recognize the Company’s share of the investee’s net
profit or loss, including net profit or loss recognized in other comprehensive income (“OCI”), subsequent to the date
of acquisition.





2016 Consolidated Financial StatementsF-11


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Foreign currency translation



Items included in the financial statements of each consolidated
entity in the Company’s consolidated financial statements are measured using the currency of the primary economic environment
in which the entity operates (the “functional currency”). The consolidated financial statements are presented in US
dollars, which is the functional currency of Hydrogenics Corporation (“the parent company”).



Foreign currency transactions are translated into the functional
currency using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses resulting from
the settlement of foreign currency transactions and from the translation at period-end exchange rates of monetary assets and liabilities
denominated in currencies other than an operation’s functional currency are recognized in the consolidated statements of
operations and comprehensive loss.



The functional currency of the Company’s subsidiary located
in Belgium is the euro, which is the currency of the primary economic environment in which the subsidiary operates. Effective
January 1, 2016 the functional currency of the Company’s subsidiary located in Germany is the euro (previously was the US
dollar), which is the currency of the primary economic environment in which the subsidiary operates. The financial statements
of these subsidiaries are translated into US dollars as follows: assets and liabilities, at the closing exchange rate at the dates
of the consolidated balance sheets; and the income and expenses and other comprehensive income (loss), at the average exchange
rate during the year as this is considered a reasonable approximation to the actual rates. All resulting foreign exchange changes
are recognized in other comprehensive loss as cumulative translation adjustments.



Cash and cash equivalents and restricted cash



Cash equivalents are short-term, highly liquid investments that
are readily convertible into known amounts of cash. Cash and cash equivalents, including restricted cash held as partial security
for standby letters of credit and letters of guarantee, include cash on hand deposits held with banks and other short-term highly
liquid investments with original maturities of three months or less.



Financial instruments



Financial assets and financial liabilities are recognized on the
trade date – the date on which the Company becomes a party to the contractual provisions of the instrument. Financial assets
are derecognized when the rights to receive cash flows from the financial assets have expired or have been transferred and the
Company has transferred substantially all risks and rewards of ownership. Financial liabilities are derecognized when they are
extinguished, which occurs when the obligation specified in the contract is discharged, cancelled, or expired. Financial assets
and financial liabilities are offset and the net amount reported in the consolidated balance sheets when there is a legally enforceable
right to offset the recognized amounts and there is an intention to settle on a net basis, or realize the financial asset and
settle the financial liability simultaneously.



At initial recognition, the Company classifies its financial instruments
in the following categories depending on the purpose for which the instruments were acquired, as follows:



| | (i) | Financial assets and financial
                                         liabilities at fair value through profit or loss. A financial asset or financial
                                         liability is classified in this category if acquired principally for the purpose of selling
                                         or repurchasing in the short term. Derivatives are also included in this category, unless
                                         designated as hedges. Financial instruments in this category are recognized initially
                                         and subsequently at fair value. Transaction costs are expensed in the consolidated statements
                                         of operations and comprehensive loss. Gains and losses arising from changes in fair value
                                         are presented in the consolidated statements of operations and comprehensive loss within
                                         other gains and losses in the period in which they arise. Financial assets and financial
                                         liabilities at fair value through profit or loss are classified as current, except for
                                         the portion expected to be realized or paid beyond 12 months of the consolidated balance
                                         sheet dates, which is classified as non-current. The measurement of the fair value of
                                         an asset or liability is based on assumptions that market participants would use when
                                         pricing the asset or liability under current market conditions.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





2016 Consolidated Financial StatementsF-12


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company also periodically enters
into foreign exchange forward contracts to limit its exposure to foreign currency rate fluctuations. These derivatives are recognized
initially at fair value and are recorded as either assets or liabilities based on their fair value. Subsequent to initial recognition,
these derivatives are measured at fair value and changes to their value are recorded through net loss, unless these financial
instruments are designated as hedges.



| | (ii) | Loans and receivables.Loans
                                         and receivables are non-derivative financial assets with fixed or determinable payments
                                         that are not quoted in an active market. The Company’s loans and receivables comprise
                                         trade and other receivables, cash and cash equivalents and restricted cash, and are classified
                                         as current, except for the portion expected to be realized or paid beyond 12 months (or
                                         within the normal operating cycle of the business if longer) of the consolidated balance
                                         sheet dates, which is classified as non-current. Loans and receivables are initially
                                         recognized at fair value. The measurement of the fair value of an asset is based on assumptions
                                         that market participants would use when pricing the asset under current market conditions.
                                         Subsequently, loans and receivables are measured at amortized cost using the effective
                                         interest method less a provision for impairment.
| | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (iii) | Financial liabilities at
                                         amortized cost. Financial liabilities at amortized cost include trade and other payables,
                                         repayable government contributions and long-term debt. All financial liabilities at amortized
                                         cost are initially recognized at fair value and subsequently measured at amortized cost
                                         using the effective interest method. At the end of each reporting period, interest accretion
                                         related to repayable government contributions and long-term debt is included in interest
                                         expense and changes in value attributable to changes in the timing and amount of estimated
                                         future cash flows are included in other finance gains losses, net. Financial liabilities
                                         are classified as current liabilities if payment is due within 12 months (or within the
                                         normal operating cycle of the business if longer). Otherwise, they are presented as non-current
                                         liabilities.
| | ----- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (iv) | Derivative financial instruments,
                                         including hedge accounting. The Company periodically holds derivative financial instruments
                                         to hedge its foreign currency risk exposures that are designated as the hedging instrument
                                         in a hedge relationship. On initial designation of the hedge, the Company formally documents
                                         the relationship between the hedging instrument and hedged item, including the risk management
                                         objectives and strategy in undertaking the hedge transaction, together with the methods
                                         that will be used to assess the effectiveness of the hedging relationship. The Company
                                         makes an assessment, both at the inception of the hedge relationship as well as on an
                                         ongoing basis, whether the hedging instruments are expected to be “highly effective”
                                         in offsetting the changes in the fair value or cash flows of the respective hedged items
                                         during the period for which the hedge is designated, and whether the actual results of
                                         each hedge are within a range of 80-125%. For a cash flow hedge of a forecast transaction,
                                         the transaction should be highly probable to occur and should present an exposure to
                                         variations in cash flows that could ultimately affect reported net income. Derivatives
                                         are recognized initially at fair value; attributable transaction costs are recognized
                                         in profit or loss as incurred. Subsequent to initial recognition, derivatives are measured
                                         at fair value, and changes therein are accounted for as described below.
| | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (v) | Cash flow hedges.When
                                         a derivative is designated as the hedging instrument in a hedge of the variability in
                                         cash flows attributable to a particular risk associated with a recognized asset or liability
                                         or a highly probable forecast transaction that could affect profit or loss, the effective
                                         portion of changes in the fair value of the derivative is recognized in other comprehensive
                                         income and presented in unrealized gains/losses on cash flow hedges in equity. The amount
                                         recognized in other comprehensive income is removed and included in profit or loss in
                                         the same period as the hedged cash flows affect profit or loss under the same line item
                                         in the consolidated statements of operations and comprehensive loss as the hedged item.
                                         Any ineffective portion of changes in the fair value of the derivative is recognized
                                         immediately in profit or loss.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





2016 Consolidated Financial StatementsF-13


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



If the hedging instrument no longer meets the criteria
for hedge accounting, expires or is sold, terminated, exercised, or the designation is revoked, then hedge accounting is discontinued
prospectively. The cumulative gain or loss previously recognized in other comprehensive income and presented in unrealized gains/losses
on cash flow hedges in equity remains there until the forecast transaction affects profit or loss.



If the forecast transaction is no longer expected to
occur, then the balance in other comprehensive income is recognized immediately in profit or loss. In other cases the amount recognized
in other comprehensive income is transferred to profit or loss in the same period that the hedged item affects profit or loss.



Inventories



Raw materials, work-in-progress and finished goods are valued at
the lower of cost, determined on a first-in, first-out basis, and net realizable value. Inventory costs include the cost of material,
labour, variable overhead and an allocation of fixed manufacturing overhead including amortization based on normal production
volumes. Net realizable value is the estimated selling price less estimated costs of completion and applicable selling expenses.
If the carrying value exceeds the net realizable amount, a writedown is recognized. The writedown may be reversed in a subsequent
period if the circumstances causing it no longer exist.



Property, plant and equipment



Property, plant and equipment are stated at cost less government
grants, accumulated depreciation and accumulated impairment losses. Cost includes expenditures that are directly attributable
to the acquisition of the asset. Subsequent costs are included in the asset’s carrying value or recognized as a separate
asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to the Company
and the cost can be measured reliably. The cost and accumulated depreciation of replaced assets are derecognized when replaced.
Repairs and maintenance costs are charged to the consolidated statements of operations and comprehensive loss during the period
in which they are incurred.



Depreciation is calculated on a diminishing balance method to depreciate
the cost of the assets to their residual values over their estimated useful lives. The depreciation rates applicable to each category
of property, plant and equipment are as follows:



|Furniture and equipment | 20% - 30% per annum                     
|----------------------- | ----------------------------------------
|Computer hardware       | 30% per annum                           
|Automobiles             | 30% per annum                           
|Leasehold improvements  | Straight-line over the term of the lease



Residual values, method of depreciation and useful lives of the
assets are reviewed at least annually and adjusted if appropriate.



Construction-in-progress assets are not depreciated until such
time they are available for use. Depreciation ceases at the earlier of the date the asset is classified as held-for-sale and the
date the asset is derecognized.



Gains and losses on disposals of property, plant and equipment
are determined by comparing the proceeds with the carrying value of the asset and are included as part of other gains and losses
in the consolidated statements of operations and comprehensive loss.



Intangible assets



The Company’s intangible assets consist of computer software
with finite useful lives. These assets are capitalized and amortized over their useful lives using the diminishing balance method
of 30% per annum. Costs associated with maintaining computer software programs are recognized as an expense as incurred. The method
of amortization and useful lives of the assets are reviewed at least annually and adjusted if appropriate.





2016 Consolidated Financial StatementsF-14


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Goodwill



Goodwill is recognized as the fair value of the consideration transferred
including the recognized amount of any non-controlling interest in the acquiree, less the fair value of the net identifiable assets
acquired and liabilities assumed, as of the acquisition date. Subsequent to initial recognition, goodwill is measured at cost
less accumulated impairment losses. Goodwill acquired in business combinations is allocated to groups of cash generating units
(“CGU”) that are expected to benefit from the synergies of the combination. The goodwill recorded in the Company’s
consolidated financial statements relates to the OnSite Generation CGU. Goodwill is not amortized.



Impairment



At each reporting date, the Company assesses whether there is objective
evidence that a financial asset is impaired. If such evidence exists, the Company recognizes an impairment loss on the financial
asset, which is carried at amortized cost. The loss is determined as the difference between the amortized cost of the financial
asset and the present value of the estimated future cash flows, discounted using the financial asset’s original effective
interest rate. The carrying value of the asset is reduced by this amount indirectly through the use of an allowance account. Impairment
losses on financial assets carried at amortized cost are reversed in subsequent periods if the amount of the loss decreases and
the decrease can be related objectively to an event occurring after the impairment was recognized.



Property, plant and equipment and definite life intangible assets
are tested for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Intangible
assets with an indefinite useful life or intangible assets not yet available-for-use are subject to an annual impairment test.
For the purpose of measuring recoverable values, assets are grouped at the lowest levels for which there are separately identifiable
cash inflows being the CGU. The recoverable value is the higher of an asset’s fair value less costs of disposal and value
in use (which is the present value of the expected future cash flows of the relevant asset or CGU). An impairment loss is recognized
for the value by which the asset’s carrying value exceeds its recoverable value.



Goodwill is not amortized but is reviewed for impairment annually
or at any time an indicator of impairment exists. Refer to Note 12 for a detailed discussion on how the goodwill testing is performed.
Goodwill acquired through a business combination is allocated to each CGU or group of CGUs that is expected to benefit from the
related business combination. A goodwill CGU represents the lowest level within an entity at which goodwill is monitored for internal
management purposes, which is not higher than an operating segment.



The Company evaluates impairment losses, other than goodwill impairment,
for potential reversals when events or circumstances warrant such consideration.



Segment reporting



Operating segments are reported in a manner consistent with the
internal reporting provided to the chief operating decision-maker. The chief operating decision-maker, who is responsible for
allocating resources and assessing performance of the operating segments, has been identified as the Chief Executive Officer.
The Corporation has two segments which are OnSite Generation and Power Systems. OnSite Generation includes the design, development,
manufacture and sale of hydrogen generation products. Power Systems includes the design, development, manufacture and sale of
fuel cell products.



Provisions and product warranties



Provisions are recognized when the Company has a present legal
or constructive obligation as a result of past events, it is more likely than not that an outflow of resources will be required
to settle the obligation, and the amount can be reliably estimated. Provisions are measured based on management’s best estimate
of the expenditure required to settle the obligation at the end of the reporting period, and are discounted to their present value
where the effect is material. Additionally, the Company performs evaluations to identify onerous contracts and where applicable,
records provisions for such contracts. Onerous contracts are those in which the unavoidable costs of meeting the obligations under
the contract exceed the economic benefits expected to be received under it. The unavoidable costs under a contract reflect the
least net cost of exiting from the contract, which is the lower of the cost of fulfilling it and any compensation or penalties
arising from the failure to fulfill it.





2016 Consolidated Financial StatementsF-15


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company typically provides a warranty for parts and/or labour
for up to two years or based on time or certain operating specifications, such as hours of operation. In establishing the warranty
provision, the Company estimates the likelihood that products sold will experience warranty claims and the estimated cost to resolve
claims received, taking into account the nature of the contract and past and projected experience with the products. Provisions
are reviewed at each consolidated balance sheet date and adjusted to reflect the current best estimate. If it is no longer probable
that a payment to settle the obligation will be incurred, the provision is reversed.



Warrants



The Company has issued warrants which have been classified as liabilities,
which are recorded at their fair value with changes in fair value reflected in the consolidated statements of operations.



Leases



Leases are classified as finance leases when the lease arrangement
transfers substantially all the risks and rewards of ownership to the lessee. All other leases are classified as operating leases.
The assets held under a finance lease are recognized as assets at the lower of the following two values: the present value of
the minimum lease payments under the lease arrangement or their fair value determined at inception of the lease. The corresponding
obligation to the lessor is accounted for as long-term debt. These assets are depreciated over the shorter of the useful life
of the assets and the lease term when there is no reasonable certainty the Company will obtain ownership by the end of the lease
term. Payments made under operating leases (net of any incentives received from the lessor) are charged to the consolidated statements
of operations and comprehensive loss on a straight-line basis over the period of the lease.



Research and product development



The Company incurs costs associated with the design and development
of new products. Expenditures during the research phase are expensed as incurred. Expenditures during the development phase are
capitalized if the Company can demonstrate each of the following criteria: (i) the technical feasibility of completing the intangible
asset so that it will be available-for-use or sale; (ii) its intention to complete the intangible asset and use or sell it; (iii)
its ability to use or sell the intangible asset; (iv) how the intangible asset will generate probable future economic benefits;
(v) the availability of adequate technical, financial, and other resources to complete the development and to use or sell the
intangible asset; and (vi) its ability to measure reliably the expenditure attributable to the intangible asset during its development;
otherwise, they are expensed as incurred. Capitalized costs are amortized over their estimated useful lives.



Funding for research and product development includes government
and non-government research and product development support. Government research and product development funding is recognized
when there is reasonable assurance the Company has complied with the conditions attached to the funding arrangement and is recognized
as the applicable costs are incurred. Non-governmental funding is recognized when the Company becomes party to the contractual
provisions of the funding agreement and is recognized as the applicable costs are incurred. Research and product development funding
is presented as a reduction in research and product development expenses unless it is for reimbursement of an asset, in which
case, it is accounted for as a reduction in the carrying amount of the applicable asset. Where the Company receives government
contributions that include fixed terms of repayment, a financial liability is recognized and measured as an amortized cost financial
liability, as discussed above.





2016 Consolidated Financial StatementsF-16


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Revenue recognition



Revenue is measured at the fair value of the consideration received
or receivable for the gross inflow of economic benefits during the period, arising in the ordinary course of the Company’s
activities, net of discounts and returns.



Revenue is recognized when the Company has transferred the significant
risks and rewards of ownership of the goods to the buyer, it is probable the economic benefits will flow to the Company, delivery
has occurred, and the amount of revenue and costs incurred or to be incurred can be measured reliably. For sales of equipment,
these criteria are generally met at the time the product is shipped and delivered to the customer and depending on the delivery
conditions, title and risk have passed to the customer and acceptance of the product, when contractually required, has been obtained,
either via formal acceptance by the customer or lapse of rejection period. If all other revenue recognition criteria have been
met but delivery has not occurred, the Company recognizes revenue, provided that the following criteria have been met: (i) the
buyer must have assumed title to the goods and accepted billing; (ii) it must be probable delivery will take place; (iii) the
goods must be on hand identified and ready for delivery to the buyer at the time the sale is recognized; (iv) the buyer specifically
acknowledges the deferred delivery instructions; and (v) the usual payment terms apply.



Site commissioning revenue is recognized when the installation
has been completed. Revenue is measured based on the price specified in the sales contract, net of discounts and estimated returns.



Historical experience is used to estimate and provide for discounts
and returns.



The Company also enters into transactions that represent multiple-element
arrangements, which may include any combination of equipment and service. These multiple-element arrangements are assessed to
determine whether they can be sold separately in order to determine whether they can be treated as more than one unit of accounting
or element for the purpose of revenue recognition. When there are multiple elements or units of accounting in an arrangement,
the arrangement consideration is allocated to the separate units of accounting or elements on a fair value basis. The revenue
recognition policy described above is then applied to each unit of accounting.



Revenue from long-term contracts, such as customer specific product
development contracts, is recognized when the outcome of a transaction involving the rendering of services can be estimated reliably,
determined under the percentage-of-completion method based on the stage of completion. Under this method, the revenue recognized
equals the latest estimate of the total selling price of the contract multiplied by the actual completion rate, determined by
reference to the costs incurred for the transaction and the costs to complete the transaction. The outcome of a transaction can
be estimated reliably when the amount of revenue can be measured reliably, it is probable that the economic benefits associated
with the transaction will flow to the Company, the stage of completion at the end of the reporting period can be measured reliably,
and the costs incurred for the transaction and the costs to complete the transaction can be measured reliably.



If circumstances arise that may change the estimates of revenue,
the remaining costs or extent of progress toward completion, estimates of revenue are revised. These revisions may result in increases
or decreases in estimated revenue or remaining costs to complete and are accounted for prospectively from the period in which
the circumstances that give rise to the revision become known by management. If the outcome of a transaction cannot be estimated
reliably, revenue is recognized only to the extent of the expenses recognized that are recoverable. When the outcome of a transaction
cannot be estimated reliably and it is not probable the costs incurred will be recovered, revenue is not recognized and the costs
incurred are recognized as an expense. Once the uncertainty surrounding the outcome no longer exists, revenue is recognized by
reference to the state of completion of the transaction at the end of the reporting period.





2016 Consolidated Financial StatementsF-17


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Cash received in advance of revenue being recognized is classified
as current deferred revenue, except for the portion expected to be settled beyond 12 months of the consolidated balance sheet
dates, which is classified as non-current deferred revenue.



Cost of sales



Cost of sales for products includes the cost of finished goods
inventory and the costs related to shipping and handling. Cost of sales for service includes direct labour and additional direct
and indirect expenses.



Share capital



Common shares are classified as equity. Incremental costs directly
attributable to the issuance of shares are recognized as a deduction from equity.



Post-retirement benefit liabilities



The Company has a post-retirement benefit obligation with respect
to the Belgium subsidiary related to a defined contribution plan. Under Belgian law, a guaranteed return on the contributions
is required and as a result this is accounted for as a defined benefit plan. The Company has recorded a long-term liability associated
with this plan for the present value of the obligation at the consolidated balance sheet dates. Changes in the fair value of this
liability represent actuarial gains and losses arising from experience adjustments and are charged/credited to equity in other
comprehensive income.



Stock-based compensation



The Company’s stock-based compensation plans are summarized
below:



| | (i) | Stock options
| | --- | -------------



The Company grants stock options to certain employees. Stock options
vest 25% one year from the date of grant and annually thereafter over three years and expire after ten years. Each tranche in
an award is considered a separate award with its own vesting period and grant date fair value. The fair value of each tranche
is measured at the date of grant using the Black-Scholes option pricing model. Compensation expense is recognized (with a corresponding
adjustment to contributed surplus) over the tranche’s vesting period, and is based on the estimated number of instruments
expected to vest, which are then reestimated at the reporting dates to the extent that subsequent information indicates the actual
number of instruments expected to vest is likely to differ from previous estimates. When options are exercised the Company issues
new shares and the proceeds received net of any directly attributable transaction costs are credited to share capital at market
value and the difference is adjusted to contributed surplus.



| | (ii) | Restricted share units (“RSU”)
| | ---- | ------------------------------



The Company grants RSUs to certain employees. The RSUs will be
settled in the Company’s shares. The cost of the Company’s RSU’s is charged to selling, general and administrative
expenses using the graded vesting method. RSU’s vest three years from grant date. The fair value of each grant of RSUs is
the fair value of the Company’s share price on the date of grant. The resulting compensation expense, included in selling,
general and administrative expenses, is based on the fair value of the awards granted is charged to income over the period the
employees unconditionally become entitled to the award, with a corresponding increase to contributed surplus.







2016 Consolidated Financial StatementsF-18


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



| | (iii) | Deferred share units (“DSU”)
| | ----- | ----------------------------



The Company grants DSUs to directors as part of their compensation.
The DSUs vest upon grant and are settled in cash. The vested DSUs are marked-to-market at the end of each reporting period based
on the closing price of the Company’s shares with the change in fair value recorded in selling, general and administrative
expenses. The Company has set up a liability in the consolidated balance sheets, included within trade and other payables, for
the fair value of the vested DSUs.



| | (iv) | Performance share units
                                         (“PSU”)
| | ---- | ------------------------------------------------------------------------



The Company grants PSUs to certain employees. The PSUs will be
settled in the Company’s shares. The cost of the Company’s PSUs is charged to selling, general and administrative
expenses using the graded vesting method. The fair value of the vested share units is the fair value of the Company’s share
price on the date of grant. The resulting compensation expense, based on the fair value of the awards granted, excluding the impact
of any non-market service and performance vesting conditions, is charged to income over the period the employees unconditionally
become entitled to the award, with a corresponding increase to contributed surplus. Non-market vesting conditions are considered
in making assumptions about the number of awards that are expected to vest. At each reporting date, the Company reassesses its
estimates of the number of awards that are expected to vest and recognizes the impact of any revision in the consolidated statements
of operations and comprehensive loss with a corresponding adjustment to contributed surplus.



Income taxes



Income tax expense comprises current income tax expense and deferred
income tax expense. Income tax expense is recognized in the consolidated statements of operations, except to the extent that it
relates to items recognized directly in equity, in which case, income taxes are also recognized directly in comprehensive loss
or equity. Current income taxes are the expected taxes payable on the taxable income for the year, using income tax rates enacted
at the end of the reporting period, and any adjustment to income taxes payable in respect of previous years.



In general, deferred income taxes are the amount of income taxes
expected to be paid or recoverable in future periods in respect of temporary differences, carry-forwards of unused tax losses
and carry-forwards of unused tax credits. Deferred income taxes arise between the tax base and their carrying values in the consolidated
financial statements as well as on unused tax losses and tax credits. Deferred income taxes are determined on a non-discounted
basis using tax rates and laws that have been enacted or substantively enacted at the consolidated balance sheet dates and are
expected to apply when the deferred income tax asset or liability is settled.



Deferred income taxes are provided on temporary differences arising
on investments in subsidiaries and associates, except, in the case of subsidiaries, where the timing of the reversal of the temporary
difference is controlled by the Company and it is probable that the temporary difference will not reverse in the foreseeable future.
Deferred income tax assets are recognized to the extent it is probable that taxable profits will be available against which the
deductible temporary differences and unused tax losses and tax credits can be utilized. The carrying value of deferred income
tax assets is reviewed at each consolidated balance sheet date and reduced to the extent that it is no longer probable that sufficient
taxable profits will be available to allow all or part of the deferred income tax asset to be recovered. Deferred income tax liabilities
are not recognized on temporary differences that arise from goodwill, which is not deductible for tax purposes. Deferred income
tax assets and liabilities are not recognized in respect of temporary differences that arise on initial recognition of certain
assets and liabilities acquired other than in a business combination. Deferred income tax assets and liabilities are presented
as non-current.









2016 Consolidated Financial StatementsF-19


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Net loss per share



Basic net loss per share is calculated based on the weighted average
number of common shares outstanding for the year. Diluted net loss per share is calculated using the weighted average number of
common shares outstanding for the year for basic net loss per share plus the weighted average number of potential dilutive shares
that would have been outstanding during the year had all potential common shares been issued at the beginning of the year or when
the underlying stock options or warrants were granted, if later, unless they were anti-dilutive. The treasury stock method is
used to determine the incremental number of shares that would have been outstanding had the Company used proceeds from the exercise
of stock options and warrants to acquire common shares.



Note 4 - Significant Accounting Judgments and Estimation Uncertainties



Critical accounting estimates and judgments





The preparation of consolidated financial statements in accordance
with IFRS requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial
statements and notes to the consolidated financial statements. These estimates are based on management’s experience and other
factors, including expectations about future events that are believed to be reasonable under the circumstances. Significant areas
requiring the Company to make estimates include revenue recognition, warranty provision and going concern.





These estimates and judgments are further discussed below:



| | (i) | Revenue recognition and contract
                                         accounting
| | --- | ------------------------------------------------------------------------------------



The Company uses the percentage-of-completion method of accounting
for its long-term contracts, such as customer specific product development contracts. Use of the percentage-of-completion method
requires the Company to estimate the services performed to date as a proportion of the total services to be performed. This estimate
impacts both the amount of revenue recognized by the Company as well as the amount of deferred revenue. The determination of estimated
costs for completing a fixed-price contract is based on estimates that can be affected by a variety of factors such as potential
variances in scheduling and cost of materials along with the availability and cost of qualified labour and subcontractors, productivity,
as well as possible claims from subcontractors.



The determination of expected revenue represents the contractually
agreed revenue, including change orders. A change order results from an official change to the scope of the work to be performed
compared to the original contract that was signed.



The Company estimates costs separately for each customer specific
product development contract. The determination of estimates is based on the Company’s business practices, considering budgets
as well as its historical experience. Furthermore, management regularly reviews underlying estimates of product development contract
profitability. The long-term nature of certain product development contract arrangements commonly results in significant estimates
related to scheduling and estimated costs.



| | (ii) | Warranty provision
| | ---- | ------------------



As noted above, the Company typically provides a warranty for parts
and/or labour for up to two years from the date of shipment or commissioning or based on certain operating specifications, such
as hours of operation. In establishing the warranty provision, management considers historical field data, results of internal
testing and in certain circumstances, application, in determining the value of this provision. Should these estimates prove to
be incorrect, the Company may incur costs different from those provided for in the warranty provision. Management reviews warranty
assumptions and makes adjustments to the provision at each reporting date based on the latest information available, including
the expiry of contractual obligations. Adjustments to the warranty provision are recorded in cost of sales.







2016 Consolidated Financial StatementsF-20


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



| | (iii) | Going concern
| | ----- | -------------



The assessment of events
or conditions that may cast significant doubt on the Company’s ability to continue as a going concern involves significant
judgment. In making this determination management considers all relevant information. See note 32 for Liquidity risk disclosures.
Management has determined that there is no going concern uncertainty at December 31, 2016.



Note 5 - Accounting Standards Issued But Not Yet Applied



In July 2014, the IASB issued a final version of IFRS 9, Financial
Instruments,which replaces IAS 39, Financial Instruments: Recognition and Measurement,and supersedes all previous
versions of the standard. The standard introduces a new model for the classification and measurement of financial assets and liabilities,
a single expected credit loss model for the measurement of the impairment of financial assets and a new model for hedge accounting
that is aligned with a company’s risk management activities. IFRS 9 is effective for annual periods beginning on or after
January 1, 2018, with earlier adoption permitted. The Company is currently evaluating the impact of adopting this standard on
its consolidated financial statements.

In May 2014, the IASB issued the final revenue standard, IFRS 15,
Revenue from Contracts with Customers,which will replace IAS 11, Construction Contracts,IAS 18, Revenue,IFRIC
13, Customer Loyalty Programmes,IFRIC 15, Agreements for the Construction of Real Estate,IFRIC 18, Transfer
of Assets from Customers,and SIC 31, Revenue - Barter Transactions Involving Advertising Services.



The new standard provides a comprehensive five-step revenue recognition model for all contracts with customers and requires management
to exercise significant judgment and make estimates that affect revenue recognition. In September 2015, the IASB deferred the
effective date of the revenue standard to fiscal years beginning on or after January 1, 2018 and interim periods within that year.
Earlier application is permitted. The Company is assessing the new standard to determine its impact on the Company’s consolidated
financial statements.



IFRS 16 Leases (“IFRS 16”) sets out the principles
for the recognition, measurement, presentation an ddisclosure of leases for both parties to a contract, the customer (‘lessee’)
and the supplier (‘lessor). This will replace IAS 17 Leases(“IAS 17”) and related Interpretations. IFRS
16 provides revised guidance on identifying a lease and for separating lease and non-lease components of a contract. IFRS 16 introduces
a single accounting model for all lessees and requires a lessee to recognize right-of-use assets and lease liabilities for leases
with terms of more than 12 moths, unless the underlying asset is of low value, and depreciation of lease assets separately from
interest on lease liabilities in the income statement. Under IFRS 16, lessor accounting for operating and finance leases will
remain substantially unchanged. IFRS 16 is effective for annual periods beginning on or after January 1, 2019, with earlier application
permitted for entities that apply IFRS 15 Revenue from Contracts with Customers.The Company’s contractual obligations
in the form of operating leases under IAS 17 (note 28) will then be reflected on the balance sheet resulting in an increase to
both assets and liabilities upon adoption of IFRS 16, and changes to the timing of recognition of expenses associated with the
lease arrangements. The Company has not yet analyzed the new standard to determine its impact on the Company’s consolidated
balance sheet and consolidated statement of net loss and comprehensive loss.



IFRS 2, Share-based Payments: In June 2016, the IASB issued a final
amendment to IFRS 2, clarifying how to account for certain types of share-based payment transactions. The amendment, which was
developed through the IFRS Interpretations Committee, provides requirements on the accounting for: (i) the effect of vesting and
non-vesting conditions on the measurement of cash-settled share-based payment; (ii) share-based payment transactions with a net
settlement feature for withholding tax obligations; and (iii) a modification to the terms and conditions of a share-based payment
that changes the classifications of the transaction from cash-settled to equity-settled. The amendments are effective for annual
reporting periods beginning on or after January 1, 2018. The Company is assessing the new amendment to determine its impact on
the Company’s consolidated financial statements.



2016 Consolidated Financial StatementsF-21


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 6 – Cash and Cash Equivalents and Restricted Cash



|                              |  |   | December 31,2016 |  |  |   | December 31,2015 | 
|----------------------------- |  | - | ---------------- |  |  | - | ---------------- | 
|Cash and cash equivalents     |  | $ | 10,338           |  |  | $ | 23,398           | 
|Restricted cash               |  |   | 405              |  |  |   | 971              | 
|Restricted cash - non-current |  |   | 535              |  |  |   | 532              | 
|Total                         |  | $ | 11,278           |  |  | $ | 24,901           | 









The restricted cash is held by financial institutions
in Canada and Europe as partial security for standby letters of credit and letters of guarantee. At December 31, 2016, the Company
had standby letters of credit and letters of guarantee issued by several financial institutions of $2,916 (2015 - $5,357), with
expiry dates extending to August 2019. See Note 16 - Lines of Credit and Bank Guarantees for additional information.



Note 7 - Trade and Other Receivables



|                                       |  |   | December 31,2016 |   |  |   | December 31,2015 |  
|-------------------------------------- |  | - | ---------------- | - |  | - | ---------------- | -
|Trade accounts receivables             |  | $ | 2,269            |   |  | $ | 2,314            |  
|Less:  Allowance for doubtful accounts |  |   | (556             | ) |  |   | (127             | )
|Net trade accounts receivable          |  |   | 1,713            |   |  |   | 2,187            |  
|Accrued receivables                    |  |   | 5,002            |   |  |   | 6,450            |  
|Other receivables                      |  |   | 3,087            |   |  |   | 1,782            |  
|Total receivables                      |  | $ | 9,802            |   |  | $ | 10,419           |  



Included in accrued receivables is $4,372 relating to receivables
which are to be billed according to progress based, specified payment schedules, typical with long term percentage of completion
contracts.



Note 8 - Inventories



|                 |  |   | December 31,2016 |  |  |   | December 31,2015 | 
|---------------- |  | - | ---------------- |  |  | - | ---------------- | 
|Raw materials    |  | $ | 9,441            |  |  | $ | 7,737            | 
|Work-in-progress |  |   | 7,537            |  |  |   | 6,440            | 
|Finished goods   |  |   | 230              |  |  |   | 93               | 
|Total inventory  |  | $ | 17,208           |  |  | $ | 14,270           | 





2016 Consolidated Financial StatementsF-22


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



At December 31, 2016, the inventory obsolescence provision was
as follows:





|                              |  |   | December 31, |   |  |   | December 31, |   |  |   | December 31, |  
|----------------------------- |  | - | ------------ | - |  | - | ------------ | - |  | - | ------------ | -
|                              |  |   | 2016         |   |  |   | 2015         |   |  |   | 2014         |  
|At January 1                  |  | $ | 1,232        |   |  | $ | 1,050        |   |  | $ | 955          |  
|Net Increase in the provision |  |   | 649          |   |  |   | 547          |   |  |   | 512          |  
|Writedowns during the period  |  |   | (561         | ) |  |   | (318         | ) |  |   | (348         | )
|Foreign exchange revaluation  |  |   | 12           |   |  |   | (47          | ) |  |   | (69          | )
|At December 31,               |  | $ | 1,332        |   |  | $ | 1,232        |   |  | $ | 1,050        |  











Note 9 – Investment in Joint Venture



On May 28, 2014, the Company entered into a joint arrangement with
Kolon Water & Energy Co. Ltd., whereby the parties formed the joint venture Kolon Hydrogenics to launch and market potential
businesses based on products and technologies produced by Hydrogenics for the Korean market. The Company has a 49% equity position
in Kolon Hydrogenics and shares joint control. The Board of Directors of the joint venture has four directors consisting of two
nominees from each of Hydrogenics and Kolon Water and Energy and all resolutions are adopted by an affirmative vote of two thirds.
The Company accounts for this joint venture using the equity method in accordance with IFRS 11, “Joint Arrangements”.



|                                   |  |   | December 31,2016 |   |  |   | December 31,2015 |   |  |   | December 31,2014 |  
|---------------------------------- |  | - | ---------------- | - |  | - | ---------------- | - |  | - | ---------------- | -
|Balance January 1,                 |  | $ | 1,951            |   |  | $ | 2,150            |   |  | $ | -                |  
|Equity investment in joint venture |  |   | -                |   |  |   | -                |   |  |   | 2,307            |  
|Share in loss of the joint venture |  |   | (156             | ) |  |   | (40              | ) |  |   | (94              | )
|Foreign currency translation       |  |   | (45              | ) |  |   | (159             | ) |  |   | (63              | )
|Investment in joint venture        |  | $ | 1,750            |   |  | $ | 1,951            |   |  | $ | 2,150            |  



Financial information for the joint venture, as presented in the
IFRS financial statements of Kolon Hydrogenics follows below.











Summarized balance sheet information of Kolon Hydrogenics is as
follows:



|                        |  |   | December 31,2016 |  |  |   | December 31,2015 | 
|----------------------- |  | - | ---------------- |  |  | - | ---------------- | 
|Assets                  |  |   |                  |  |  |   |                  | 
|Current assets          |  | $ | 714              |  |  | $ | 590              | 
|Non-current assets      |  |   | 5,026            |  |  |   | 5,508            | 
|Total assets            |  | $ | 5,740            |  |  | $ | 6,098            | 
|Liabilities             |  |   |                  |  |  |   |                  | 
|Current liabilities     |  | $ | 569              |  |  | $ | 202              | 
|Non-current liabilities |  |   | 1,703            |  |  |   | 2,095            | 
|Total liabilities       |  |   | 2,272            |  |  |   | 2,297            | 
|Net assets              |  | $ | 3,468            |  |  | $ | 3,801            | 





2016 Consolidated Financial StatementsF-23


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)





Summarized loss from continuing operations and total comprehensive
loss for Kolon Hydrogenics is as follows:



|                                              |  |   | 2016  |   |  |   | 2015 |   |  |   | 2014 |  
|--------------------------------------------- |  | - | ----- | - |  | - | ---- | - |  | - | ---- | -
|Revenue                                       |  | $ | 1,496 |   |  | $ | 119  |   |  | $ | -    |  
|Loss before income taxes                      |  |   | (232  | ) |  |   | (271 | ) |  |   | (161 | )
|Joint venture loss from continuing operations |  | $ | (241  | ) |  | $ | (329 | ) |  | $ | (126 | )



The Company’s portion of the joint venture’s
loss from continuing operations is 49% of the stated amount.









The following table is a reconciliation of the joint
venture’s financial information to the carrying amount of the Company’s investment in Kolon Hydrogenics:



|                                                            |  |   | December 31,2016 |   |  |   | December 31,2015 |  
|----------------------------------------------------------- |  | - | ---------------- | - |  | - | ---------------- | -
|Opening net assets of Kolon Hydrogenics (Equity Investment) |  | $ | 3,801            |   |  | $ | 4,454            |  
|Investment in Kolon Hydrogenics                             |  |   | -                |   |  |   | -                |  
|Loss of joint venture                                       |  |   | (241             | ) |  |   | (329             | )
|Foreign currency translation                                |  |   | (93              | ) |  |   | (324             | )
|Closing net assets of Kolon Hydrogenics                     |  | $ | 3,467            |   |  | $ | 3,801            |  
|Unrealized (gains) losses on sales to Kolon                 |  |   | 104              |   |  |   | 180              |  
|Adjusted net assets of Kolon Hydrogenics                    |  |   | 3,571            |   |  |   | 3,981            |  
|Company’s share of net assets at 49%                        |  | $ | 1,750            |   |  | $ | 1,951            |  



Note 10 - Property, Plant and Equipment





|                                 |  |   | Plant and test equipment |   |  |   | Furniture and equipment |   |  |   | Computer 
hardware |   |  |   | Leasehold improvements |   |  |   | Construction in progress |  |  |   | Total  |  
|-------------------------------- |  | - | ------------------------ | - |  | - | ----------------------- | - |  | - | ------------------ | - |  | - | ---------------------- | - |  | - | ------------------------ |  |  | - | ------ | -
|Net book value
December 31, 2015 |  | $ | 301                      |   |  | $ | 1,427                   |   |  | $ | 112                |   |  | $ | 331                    |   |  | $ | 878                      |  |  | $ | 3,049  |  
|Additions                        |  |   | 39                       |   |  |   | 219                     |   |  |   | 160                |   |  |   | 151                    |   |  |   | 1,243                    |  |  |   | 1,812  |  
|Disposals                        |  |   | -                        |   |  |   | (5                      | ) |  |   | -                  |   |  |   | -                      |   |  |   | -                        |  |  |   | (5     | )
|Depreciation                     |  |   | (100                     | ) |  |   | (343                    | ) |  |   | (83                | ) |  |   | (168                   | ) |  |   | -                        |  |  |   | (694   | )
|Foreign exchange                 |  |   | (26                      | ) |  |   | (28                     | ) |  |   | (7                 | ) |  |   | (6                     | ) |  |   | -                        |  |  |   | (67    | )
|Net book value
December 31, 2016 |  | $ | 214                      |   |  | $ | 1,270                   |   |  | $ | 182                |   |  | $ | 308                    |   |  | $ | 2,121                    |  |  | $ | 4,095  |  
|                                 |  |   |                          |   |  |   |                         |   |  |   |                    |   |  |   |                        |   |  |   |                          |  |  |   |        |  
|Total cost                       |  | $ | 3,668                    |   |  | $ | 5,056                   |   |  | $ | 459                |   |  | $ | 1,660                  |   |  | $ | 2,121                    |  |  | $ | 12,964 |  
|Total accumulated depreciation   |  |   | (3,454                   | ) |  |   | (3,786                  | ) |  |   | (277               | ) |  |   | (1,352                 | ) |  |   | -                        |  |  |   | (8,869 | )
|Net book value
December 31, 2016 |  | $ | 214                      |   |  | $ | 1,270                   |   |  | $ | 182                |   |  | $ | 308                    |   |  | $ | 2,121                    |  |  | $ | 4,095  |  





Depreciation of $350 (2015 - $329; 2014 - $422) was included in
selling, general and administrative expenses and $344 (2015 - $256; $2014 - $186) in cost of sales.





2016 Consolidated Financial StatementsF-24


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



|                                 |  |   | Plant and test equipment |   |  |   | Furniture and equipment |   |  |   | Computer 
hardware |   |  |   | Leasehold improvements |   |  |   | Construction in progress |  |  |   | Total   |  
|-------------------------------- |  | - | ------------------------ | - |  | - | ----------------------- | - |  | - | ------------------ | - |  | - | ---------------------- | - |  | - | ------------------------ |  |  | - | ------- | -
|Net book value
December 31, 2014 |  | $ | 181                      |   |  | $ | 1,451                   |   |  | $ | 93                 |   |  | $ | 148                    |   |  | $ | -                        |  |  | $ | 1,873   |  
|Additions                        |  |   | 187                      |   |  |   | 395                     |   |  |   | 107                |   |  |   | 246                    |   |  |   | 878                      |  |  |   | 1,813   |  
|Disposals                        |  |   | -                        |   |  |   | (5                      | ) |  |   | (4                 | ) |  |   | -                      |   |  |   | -                        |  |  |   | (9      | )
|Depreciation                     |  |   | (66                      | ) |  |   | (392                    | ) |  |   | (65                | ) |  |   | (62                    | ) |  |   | -                        |  |  |   | (585    | )
|Foreign exchange                 |  |   | (1                       | ) |  |   | (22                     | ) |  |   | (19                | ) |  |   | (1                     | ) |  |   | -                        |  |  |   | (43     | )
|Net book value
December 31, 2015 |  | $ | 301                      |   |  | $ | 1,427                   |   |  | $ | 112                |   |  | $ | 331                    |   |  | $ | 878                      |  |  | $ | 3,049   |  
|                                 |  |   |                          |   |  |   |                         |   |  |   |                    |   |  |   |                        |   |  |   |                          |  |  |   |         |  
|Total cost                       |  | $ | 5,373                    |   |  | $ | 5,030                   |   |  | $ | 436                |   |  | $ | 1,532                  |   |  | $ | 878                      |  |  | $ | 13,249  |  
|Total accumulated depreciation   |  |   | (5,072                   | ) |  |   | (3,603                  | ) |  |   | (324               | ) |  |   | (1,201                 | ) |  |   | -                        |  |  |   | (10,200 | )
|Net book value
December 31, 2015 |  | $ | 301                      |   |  | $ | 1,427                   |   |  | $ | 112                |   |  | $ | 331                    |   |  | $ | 878                      |  |  | $ | 3,049   |  





Note 11 - Intangible Assets





|Computer software              |  |   | 2016   |   |  |   | 2015   |  
|------------------------------ |  | - | ------ | - |  | - | ------ | -
|Net book value 
December 31,   |  | $ | 215    |   |  | $ | 157    |  
|Additions                      |  |   | 48     |   |  |   | 105    |  
|Amortization                   |  |   | (56    | ) |  |   | (45    | )
|Foreign exchange               |  |   | (4     | ) |  |   | (2     | )
|Net book value 
December 31,   |  | $ | 203    |   |  | $ | 215    |  
|                               |  |   |        |   |  |   |        |  
|Total cost                     |  | $ | 2,030  |   |  | $ | 1,989  |  
|Total accumulated depreciation |  |   | (1,827 | ) |  |   | (1,774 | )
|Net book value 
December 31,   |  | $ | 203    |   |  | $ | 215    |  





Amortization of $56 (2015 - $45; 2014 - $53) is included in the
consolidated statements of operations and comprehensive loss in selling, general and administrative expenses.





2016 Consolidated Financial StatementsF-25


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 12 - Goodwill



The carrying amounts of goodwill at the beginning and end of the
current and previous years are set out below.



|                             |  |   | 2016  |   |  |   | 2015  |  
|---------------------------- |  | - | ----- | - |  | - | ----- | -
|At January 1                 |  | $ | 4,135 |   |  | $ | 4,609 |  
|Foreign exchange revaluation |  |   | (116  | ) |  |   | (474  | )
|At December 31               |  | $ | 4,019 |   |  | $ | 4,135 |  



The recoverable amount of the OnSite Generation CGU was estimated
based on an assessment of fair value less costs of disposal. The methodology used to test impairment is classified as Level 3
per the hierarchy described in Note 32. Fair value less costs of disposal is determined using a multiple of approximately two
times revenue determined by reference to specific risks in relation to the OnSite Generation CGU and revenue multiples based on
past experience, forecasted results, and those noted for comparable companies. Furthermore, the Company reconciles the recoverable
amount to its consolidated market capitalization and the fair value of its debt. An impairment charge is recognized to the extent
that the carrying value exceeds the recoverable amount.



No impairment charges have arisen as a result of the reviews performed
as at December 31, 2016 and 2015. Reasonably possible changes in key assumptions would not cause the recoverable amount of goodwill
to fall below the carrying value.



Note 13 - Trade and Other Payables



Accounts payable and accrued liabilities are as follows:



|                                               |  |   | December 31,2016 |  |  |   | December 31,2015 | 
|---------------------------------------------- |  | - | ---------------- |  |  | - | ---------------- | 
|Trade accounts payable                         |  | $ | 4,004            |  |  | $ | 3,720            | 
|Accrued payroll and related compensation       |  |   | 1,776            |  |  |   | 1,798            | 
|Supplier accruals                              |  |   | 1,277            |  |  |   | 1,368            | 
|Accrued professional fees                      |  |   | 150              |  |  |   | 239              | 
|Other                                          |  |   | 28               |  |  |   | 651              | 
|Total accounts payable and accrued liabilities |  | $ | 7,235            |  |  | $ | 7,776            | 





2016 Consolidated Financial StatementsF-26


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 14 – Financial Liabilities



Financial liabilities are as follows:



|                                                                        |  |   | December 31,2016 |  |  |   | December 31,2015 | 
|----------------------------------------------------------------------- |  | - | ---------------- |  |  | - | ---------------- | 
|Current portion of long-term debt - Export Development Canada (note 17) |  | $ | 2,107            |  |  | $ | -                | 
|Current portion of long-term debt - Province of Ontario (note 17)       |  |   | 893              |  |  |   | 162              | 
|Debt - institutional (note 17)                                          |  |   | -                |  |  |   | 7,140            | 
|Current portion of repayable government contributions (note 17)         |  |   | 154              |  |  |   | 192              | 
|Warrants                                                                |  |   | 325              |  |  |   | 752              | 
|Deferred share unit liability                                           |  |   | 456              |  |  |   | 746              | 
|Current portion of capital lease                                        |  |   | 4                |  |  |   | -                | 
|Derivative liability (note 25)                                          |  |   | -                |  |  |   | 42               | 
|Total financial liabilities                                             |  | $ | 3,939            |  |  | $ | 9,034            | 



Warrants



On November 4, 2016, concurrent with a new loan agreement with
Export Development Canada (“EDC”), the Company issued 200,575 share purchase warrants. Each warrant is exercisable
for one common share of the Company at an exercise price of US$6.85 per common share. The warrants are transferrable and expire
on November 4, 2021. The proceeds of the loan (net of transaction costs) were allocated between the fair value of the warrant
liability and the debt, thus no amount was included in other finance (losses) gains. These warrants include anti-dilution provisions,
and as a result are accounted for as a financial liability with changes in fair value reflected in the consolidated statements
of operations.



On May 8, 2015, concurrent with a new loan agreement with a syndicate
of lenders, the Company issued 250,000 share purchase warrants. Each warrant was exercisable for one common share of the Company
at an exercise price of US$15.00 per common share. The warrants are non-transferrable and expire on May 6, 2019. As a result of
this issuance, the fair market value of these warrants of $885 was included in other finance (losses) gains. These warrants include
anti-dilution provisions, and as a result are accounted for as a financial liability with changes in fair value reflected in the
consolidated statements of operations.



On December 16, 2015, as a result of a public offering, the exercise
price of the warrants issued in 2015 was reduced to US$10.85 per common share.



The fair value of the warrants was determined using the Black-Scholes
option pricing model with the following weighted average assumptions:





2016 Consolidated Financial StatementsF-27


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



2016 Warrants



|                            |  |  | December 31,  2016 |   |  |  | Inception November 4, 
2016 |  
|--------------------------- |  |  | ------------------ | - |  |  | --------------------------- | -
|Risk-free interest rate (%) |  |  | 0.82               | % |  |  | 0.54                        | %
|Expected volatility (%)     |  |  | 65.9               | % |  |  | 65.37                       | %
|Expected life in years      |  |  | 2.8                |   |  |  | 3                           |  
|Expected dividend           |  |  | Nil                |   |  |  | Nil                         |  



Expected volatility was revised using the historical volatility
for the Company’s share price for the remaining years prior to the period end date, as this is the expected remaining life
of the warrants.



2015 Warrants



|                            |  |  | December 31,  2016 |   |  |  | December 31,  2015 |  
|--------------------------- |  |  | ------------------ | - |  |  | ------------------ | -
|Risk-free interest rate (%) |  |  | 0.74               | % |  |  | 0.56               | %
|Expected volatility (%)     |  |  | 60.1               | % |  |  | 68.3               | %
|Expected life in years      |  |  | 1.4                |   |  |  | 2.4                |  
|Expected dividend           |  |  | Nil                |   |  |  | Nil                |  



Expected volatility was revised using the historical volatility
for the Company’s share price for the remaining years prior to the period end date, as this is the expected remaining life
of the warrants.



Note 15 - Warranty Provisions



a)Changes in the Company’s aggregate warranty provisions are as follows:



|                                             |  |   | 2016   |   |  |   | 2015   |  
|-------------------------------------------- |  | - | ------ | - |  | - | ------ | -
|At January 1,                                |  | $ | 3,193  |   |  | $ | 2,547  |  
|Additional provisions                        |  |   | 969    |   |  |   | 1,977  |  
|Utilized during the period                   |  |   | (732   | ) |  |   | (622   | )
|Unused amounts reversed                      |  |   | (1,330 | ) |  |   | (511   | )
|Foreign currency translation                 |  |   | (38    | ) |  |   | (198   | )
|Total warranty provision at December 31,     |  |   | 2,062  |   |  |   | 3,193  |  
|Less current portion                         |  |   | (1,221 | ) |  |   | (2,255 | )
|Long-term warranty provision at December 31, |  | $ | 841    |   |  | $ | 938    |  





2016 Consolidated Financial StatementsF-28


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 16 - Lines of Credit and Bank Guarantees



At December 31, 2016, the Company’s subsidiary in Belgium
(the “Borrower”) had a joint credit and operating line facility of €9,200, which renews annually in April. Under
this facility, the Borrower may borrow up to a maximum of 75% of the value of awarded sales contracts, approved by the Belgian
financial institution, to a maximum of €500; and may also borrow up to €1,500 for general business purposes, provided
sufficient limit exists under the overall facility limit of €9,200. In 2016, an addition to the facility was made, whereby
up to an amount of €2,200 is available to the Borrower, as a line of credit for fixed-term advances ranging from seven days
to 30 days, for the specific financing of working capital on a significant project in Belgium. All other conditions of the facility
remain unchanged. Of the €9,200 facility, €2,763 or approximately $2,916 was drawn as standby letters of credit and
bank guarantees and €2,000 or approximately $2,111 was drawn as an operating line. At December 31, 2016, the Company had
availability of less than €4,437 or $4,682 (December 31, 2015 - $2,356) under this facility for use as letters of credit
and bank guarantees.



The credit facility bears interest at EURIBOR plus 1.45% per annum
and is secured by a €1,000 secured first charge covering all assets of the Borrower, as well as related current and future
receivables. Hydrogenics Corporation has also provided a €2,200 parent company guarantee. The credit facility contains a
negative pledge precluding the Borrower from providing security over its assets. Additionally, the Borrower is required to maintain
a solvency covenant, defined as equity plus current account (intercompany account with the Corporate company), divided by total
liabilities of not less than 25% and ensure that its intercompany accounts owing to Hydrogenics do not fall below a defined level.
At December 31, 2016, the Borrower was in compliance with these covenants.



At December 31, 2016, the Company also had a Canadian credit facility
of $2,275, with no expiration date for use only as letters of credit and bank guarantees. At December 31, 2016, $nil was drawn
as standby letters of credit and bank guarantees. At December 31, 2016, the Company had $2,275 (December 31, 2015 - $2,162) available
under this facility.



These letters of credit and bank guarantees relate primarily
to obligations in connection with the terms and conditions of the Company’s sales contracts. The standby letters of credit
and letters of guarantee may be drawn on by the customer if the Company fails to perform its obligations under the sales contracts.



Note 17 - Other Non-current Liabilities



Other non-current liabilities are as follows:



|                                                                                 |  |   | December 31,2016 |   |  |   | December 31,2015 |  
|-------------------------------------------------------------------------------- |  | - | ---------------- | - |  | - | ---------------- | -
|Long-term debt - Export Development Canada (i)                                   |  | $ | 8,625            |   |  | $ | -                |  
|Long-term debt - Province of Ontario (ii)                                        |  |   | 3,239            |   |  |   | 2,865            |  
|Long-term debt - institutional (iii)                                             |  |   | -                |   |  |   | 7,140            |  
|Non-current post-retirement benefit liabilities (iv)                             |  |   | 377              |   |  |   | 288              |  
|Repayable government contributions (v)                                           |  |   | 154              |   |  |   | 322              |  
|Capital lease                                                                    |  |   | 25               |   |  |   | -                |  
|Total                                                                            |  |   | 12,420           |   |  |   | 10,615           |  
|Less current portion of long-term debt - Export Development Canada (i) (note 14) |  |   | (2,107           | ) |  |   | -                |  
|Less current portion of long-term debt - institutional (note 14)                 |  |   | -                |   |  |   | (7,140           | )
|Less current portion of repayable government contribution (note 14)              |  |   | (154             | ) |  |   | (192             | )
|Less current portion of long-term debt - Province of Ontario  (note 14)          |  |   | (893             | ) |  |   | (162             | )
|Less current portion of other long-term liabilities                              |  |   | (4               | ) |  |   | -                |  
|Total other non-current liabilities                                              |  | $ | 9,262            |   |  | $ | 3,121            |  





2016 Consolidated Financial StatementsF-29


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



| | (i) | Long-term debt
                                         - Export Development Canada (“EDC”)
| | --- | -------------------------------------------------------------------------------------------



In the fourth quarter of 2016, the Company entered into a loan
agreement with EDC for a five year facility of $9,000.



The loan is structured as a five year term loan with quarterly
interest payments calculated at an annual interest rate of U.S. prime plus 10%, declining to U.S. prime plus 7% (or 5%) if certain
annual earnings before interest, taxes, depreciation and amortization thresholds are met. The loan is secured by a second charge
over the assets located within Canada. Commencing March 31, 2017, the loan principal is subject to four quarterly repayments of
$250 followed by 16 quarterly repayments of $500. There is an option to prepay a portion of, or the entire loan at any time, subsequent
to March 31, 2017.



The amortized cost of this loan at December 31, 2016 was $8,625.
Total interest expense as at December 31, 2016 totalled $244. Total financing fees included in the amortized cost of the loan
at inception were $286. As of December 31, 2016	 accretion of deferred financing fees of $26 has been included in interest
expense.



The change in carrying value of this liability at December 31 was
as follows:





|                                                     |  |   |       |   |  |   |      |  |  |   |      | 
|---------------------------------------------------- |  | - | ----- | - |  | - | ---- |  |  | - | ---- | 
|                                                     |  |   | 2016  |   |  |   | 2015 |  |  |   | 2014 | 
|At January 1,                                        |  | $ | -     |   |  | $ | -    |  |  | $ | -    | 
|Drawdowns during the period                          |  |   | 9,000 |   |  |   | -    |  |  |   | -    | 
|Amount allocated to fair value of warrants (note 14) |  |   | (333  | ) |  |   | -    |  |  |   | -    | 
|Transaction costs (financing fees)                   |  |   | (286  | ) |  |   | -    |  |  |   | -    | 
|Interest accretion during the period                 |  |   | 244   |   |  |   | -    |  |  |   | -    | 
|At December 31,                                      |  | $ | 8,625 |   |  | $ | -    |  |  | $ | -    | 





| | (ii) | Long-term debt
                                         - Province of Ontario
| | ---- | -----------------------------------------------------------------------------



In 2011, the Company entered into a loan agreement with the Province
of Ontario’s Ministry of Economic Development and Trade, Strategic Jobs and Investment Fund for funding up to C$6,000. Each
draw on the loan is calculated based on 50% of eligible costs to a maximum of C$1,500 per disbursement. Eligible costs had to
be incurred between October 1, 2010 and September 30, 2015. The full amount of the facility was drawn during this period.





Commencing in the fourth quarter of 2016, the loan bears interest
at a rate of 3.67% and will require repayment at a rate of 20% per year of the outstanding balance.





The loan is collateralized by a general security agreement covering
assets of Hydrogenics Corporation. Additionally, the Corporation is required to maintain a minimum balance of cash in Canadian
dollars in a Canadian financial institution at all times. The Company was in compliance with this covenant at December 31, 2016.



The change in carrying value of this liability at December 31 was
as follows:



|                                     |  |   | 2016  |   |  |   | 2015  |   |  |   | 2014  |  
|------------------------------------ |  | - | ----- | - |  | - | ----- | - |  | - | ----- | -
|At January 1,                        |  | $ | 2,865 |   |  | $ | 2,922 |   |  | $ | 2,260 |  
|Repayment during the period          |  |   | (155  | ) |  |   | -     |   |  |   | -     |  
|Drawdowns during the period          |  |   | -     |   |  |   | -     |   |  |   | 494   |  
|Interest accretion during the period |  |   | 448   |   |  |   | 446   |   |  |   | 379   |  
|Foreign currency translation         |  |   | 81    |   |  |   | (503  | ) |  |   | (211  | )
|At December 31,                      |  | $ | 3,239 |   |  | $ | 2,865 |   |  | $ | 2,922 |  



2016 Consolidated Financial StatementsF-30


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



| | (iii) | Long-term debt
                                         – Institutional
| | ----- | -----------------------------------------------------------------------



In the second quarter of 2015, the Company entered into a loan
agreement with a syndicate of lenders for an 18 month facility of $7,500 bearing interest at 11% per annum. This facility was
carried at amortized cost and was repaid on November 7, 2016.



The change in carrying value of this liability at December 31 was
as follows:



|                                     |  |   | 2016   |   |  |   | 2015  |  |  |   | 2014 | 
|------------------------------------ |  | - | ------ | - |  | - | ----- |  |  | - | ---- | 
|At January 1,                        |  | $ | 7,140  |   |  | $ | -     |  |  | $ | -    | 
|Repayment during the period          |  |   | (7,500 | ) |  |   | -     |  |  |   | -    | 
|Drawdowns during the period          |  |   | -      |   |  |   | 6,866 |  |  |   | -    | 
|Interest accretion during the period |  |   | 360    |   |  |   | 274   |  |  |   | -    | 
|At December 31,                      |  | $ | -      |   |  | $ | 7,140 |  |  | $ | -    | 



| | (iv) | Post-retirement
                                         benefit liabilities
| | ---- | ----------------------------------------------------------------------------



The liability at December 31, 2016 relates to defined contribution
pension plans in Belgium and is payable in euros. Applicable law states that in the context of defined contribution plans, the
employer must guarantee a minimum return of 3.75% on employee contributions and 3.25% on employer contributions. The minimum guaranteed
return for defined contributions plans in Belgium results in the employer being exposed to financial risk for the legal obligation
to pay further contributions if the fund does not hold sufficient assets to meet the minimum guaranteed return.





|                                      |  |   | 2016   |   |  |   | 2015   |  
|------------------------------------- |  | - | ------ | - |  | - | ------ | -
|At January 1,                         |  | $ | 288    |   |  | $ | 208    |  
|Current service and net interest cost |  |   | 143    |   |  |   | 160    |  
|Employer contributions in the year    |  |   | (143   | ) |  |   | (160   | )
|Re-measurement of actuarial liability |  |   | 101    |   |  |   | 104    |  
|Foreign currency translation          |  |   | (12    | ) |  |   | (24    | )
|At December 31,                       |  | $ | 377    |   |  | $ | 288    |  
|                                      |  |   |        |   |  |   |        |  
|                                      |  |   | 2016   |   |  |   | 2015   |  
|Plan assets                           |  | $ | 1,298  |   |  | $ | 1,316  |  
|Accrued benefit obligation            |  |   | (1,675 | ) |  |   | (1,604 | )
|Net defined benefit obligation        |  | $ | (377   | ) |  | $ | (288   | )





The Company has estimated the potential additional liabilities
as $377 at December 31, 2016 (2015 - $288) using an actuarial measurement.



| | (v) | Repayable government
                                         contributions
| | --- | ---------------------------------------------------------------------------



The Corporation has received government contributions related to
certain historical research and development projects. In 1998, the Company entered into an agreement with Technologies Partnerships
Canada (“TPC”), a program of Industry Canada to develop and demonstrate hydrogen fleet fuel applications.



In January 2011, the Company entered into an amended agreement
(the “Amendment”) with TPC. Under the terms of the Amendment, C$1,500 will be paid to TPC in quarterly installments
until September 2017. An additional payment of 3% of the net proceeds of all equity instrument financing transactions completed
by the Company on or before December 31, 2017 or the sum of C$800, whichever is the lesser amount, was also to be paid to TPC.
The Company has paid the C$800 maximum under the agreement for this contingent payment.





2016 Consolidated Financial StatementsF-31


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The present value of this obligation at December 31, 2016 was $154
(2015 - $322), including the current portion of $154 (2015 - $192), which was included in trade and other payables.



The change in carrying value of this liability at December 31 was
as follows:



|                                     |  |   | 2016 |   |  |   | 2015 |   |  |   | 2014 |  
|------------------------------------ |  | - | ---- | - |  | - | ---- | - |  | - | ---- | -
|At January 1,                        |  | $ | 322  |   |  | $ | 553  |   |  | $ | 990  |  
|Repayments during the period         |  |   | (218 | ) |  |   | (213 | ) |  |   | (498 | )
|Interest accretion during the period |  |   | 35   |   |  |   | 62   |   |  |   | 104  |  
|Foreign currency translation         |  |   | 15   |   |  |   | (80  | ) |  |   | (81  | )
|Fair value loss                      |  |   | -    |   |  |   | -    |   |  |   | 38   |  
|At December 31,                      |  | $ | 154  |   |  | $ | 322  |   |  | $ | 553  |  
|Less current portion                 |  |   | (154 | ) |  |   | (192 | ) |  |   | (219 | )
|At December 31,                      |  | $ | -    |   |  | $ | 130  |   |  | $ | 334  |  



Fair value losses have been recorded in other finance gains and
losses, net of interest expense.



Note 18 - Share Capital



Common shares



The authorized share capital of the Company consists of an unlimited
number of common shares, with no par value, and an unlimited number of preferred shares in series, with no par value.





|                                                              |  | 2016 |            | 2015 |  | 2014
|------------------------------------------------------------- |  | ---- | ---------- | ---- |  | ----
|                                                              |  |      | Number     |      |  |     
|Balance at January 1                                          |  |      | 12,540,757 |      |  | $   
|Adjustment for partial shares on share consolidation          |  |      | -          |      |  |     
|Issuance of common shares and warrants exercised              |  |      |            |      |  |     
|Stock options exercised (note 19)                             |  |      | -          |      |  |     
|Shares issued on vesting of performance share units (note 19) |  |      | 4,203      |      |  |     
|At December 31                                                |  |      | 12,544,960 |      |  | $   









2016 Consolidated Financial StatementsF-32


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Common share issuance



On December 16, 2015, the Company completed a public offering for
which the Company issued 2,448,385 shares for gross proceeds of $18,975 inclusive of the overallotment. Net proceeds after underwriting
fees and expenses were $17,549.



On May 13, 2014, the Company and CommScope, Inc. of North Carolina
(“CommScope”) entered into an underwriting agreement to issue 1,500,000 common shares of the Company (1,000,000 from
Treasury and 500,000 secondary shares by CommScope) at a price of $15 per share. On May 16, 2014, the Company issued 1,000,000
shares for gross proceeds of $15,000. Net proceeds after underwriting fees and expenses were $13,545.



Warrants



On January 14, 2010, as part of a registered direct offering, the
Company issued 239,356 Series A warrants and 260,646 Series B warrants exercisable for a period of five years beginning in 2010.
The exercise price of the warrants is $3.68 per common share. All 239,356 of the Series A warrants and 191,574 of the Series B
warrants were fully exercised by December 31, 2013. The remaining 69,072 Series B warrants were exercised during 2014. The change
in fair value during the period was included in Other finance losses, net.



The activity of the Series A and B warrants during the year ended
2014 was as follows:





|                                  |  | 2014
|--------------------------------- |  | ----
|                                  |  |     
|Balance at January 1              |  |     
|Loss on revaluation to fair value |  |     
|Fair value of warrants exercised  |  |     
|Cash proceeds on exercise         |  |     
|At December 31                    |  |     



During 2014, 69,072 warrants were exercised for $nil cash proceeds
and 57,144 shares were issued.



The loss due to the change in fair value of warrants during the
year was $nil (2014 - $142) and was included in other finance (losses) gains, net.



Note 19 – Stock-Based Compensation



Under the Hydrogenics Omnibus Incentive Plan adopted in 2012, the
Corporation may issue stock options, RSUs and PSUs to employees, directors and consultants as part of long-term incentive comensation.
Stock options were previously granted under the Corporation’s Stock Option Plan.



Under the Company’s previous Stock Option Plan, 248,412 stock
options were outstanding at December 31, 2016. No further stock options may be issued under this plan.



Effective May 11, 2016, the Company amended the Omnibus Incentive
Plan to increase the number of shares available for issuance to 1,002,069 from 660,564. This was passed as a resolution by the
shareholders of Hydrogenics, on May 11, 2016.



Of the 1,002,069 shares available under the Omnibus Incentive Plan,
to be issued as stock options, RSUs and PSUs, 380,224 have been granted as stock options, 52,483 have been granted as RSUs and
195,569 have been granted as PSUs and were outstanding at December 31, 2015. The Corporation has 373,793 share units available
for issue as stock options, RSUs and PSUs under the Omnibus Incentive Plan at December 31, 2016.



2016 Consolidated Financial StatementsF-33


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Stock options



A summary of the Company’s stock option plan is as follows:



|                                 |  | 2016 |                   | 2015 |  | 2014
|-------------------------------- |  | ---- | ----------------- | ---- |  | ----
|                                 |  |      | Number of 
shares |      |  |     
|Outstanding, beginning of period |  |      | 536,174           |      |  | $   
|Granted                          |  |      | 96,056            |      |  |     
|Exercised                        |  |      | -                 |      |  |     
|Forfeited                        |  |      | (404              | )    |  |     
|Expired                          |  |      | (3,190            | )    |  |     
|Outstanding, end of period       |  |      | 628,636           |      |  | $   



During the year ended December 31, 2016, nil (2015 - 2,050, 2014
- 15,564) stock options were exercised resulting in cash proceeds of $nil (2015 - $10, 2014 - $119), an increase in equity of
$nil (2015 - $16, 2014 - $185) with an offset to contributed surplus of $nil (2015 - $6, 2014 - $66).



During the year ended December 30, 2016, 96,056 (2015 - 56,821,
2014 - nil) stock options were granted with an average fair value of C$10.53 per option (2015 - C$8.77). All options are for a
term of ten years from the date of grant and vest over four years unless otherwise determined by the Board of Directors. The fair
value of the stock options was determined using the Black-Scholes option pricing model with the following weighted average assumptions:



|                            |  |  | 2016 |   |  |  | 2015 |  
|--------------------------- |  |  | ---- | - |  |  | ---- | -
|Risk-free interest rate (%) |  |  | 0.87 | % |  |  | 0.88 | %
|Expected volatility (%)     |  |  | 64.9 | % |  |  | 63.1 | %
|Expected life in years      |  |  | 6    |   |  |  | 5    |  
|Expected dividend           |  |  | Nil  |   |  |  | Nil  |  



Expected volatility was determined using
the historical volatility for the Company’s share price for the expected remaining years prior to the period end date, as
this is the expected life of the stock options.



Stock-based compensation expense for the year ended December 31,
2016, related to stock options, was $330 (2015 - $272; 2014 - $291) and was included in selling, general and administrative expenses
with an offsetting increase to contributed surplus.



2016 Consolidated Financial StatementsF-34


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The following table summarizes information about the Company’s
stock options outstanding as of December 31, 2016:



|Grant date        |  | Expiry date       |  |  | Total  number  of  options |  |  |  | Weighted  average  remaining  contractual  life (in  years) |  |  |   | Exercise  price C$ |  |  |  | Number  of  vested  options |  |  |  | Weighted  average  remaining  contractual  life (in  years) |  |  |   | Exercise price C$ | 
|----------------- |  | ----------------- |  |  | -------------------------- |  |  |  | ----------------------------------------------------------- |  |  | - | ------------------ |  |  |  | --------------------------- |  |  |  | ----------------------------------------------------------- |  |  | - | ----------------- | 
|March 23, 2007    |  | March 23, 2017    |  |  | 3,331                      |  |  |  | 0.22                                                        |  |  | $ | 29.25              |  |  |  | 3,331                       |  |  |  | 0.22                                                        |  |  | $ | 29.25             | 
|March 12, 2008    |  | March 12, 2018    |  |  | 5,025                      |  |  |  | 1.19                                                        |  |  |   | 14.50              |  |  |  | 5,025                       |  |  |  | 1.19                                                        |  |  |   | 14.50             | 
|March 27, 2009    |  | March 27, 2019    |  |  | 6,064                      |  |  |  | 2.23                                                        |  |  |   | 13.25              |  |  |  | 6,064                       |  |  |  | 2.23                                                        |  |  |   | 13.25             | 
|April 5, 2010     |  | April 5, 2020     |  |  | 22,087                     |  |  |  | 3.26                                                        |  |  |   | 4.91               |  |  |  | 22,087                      |  |  |  | 3.26                                                        |  |  |   | 4.91              | 
|March 31, 2011    |  | March 31, 2021    |  |  | 85,000                     |  |  |  | 4.25                                                        |  |  |   | 6.96               |  |  |  | 85,000                      |  |  |  | 4.25                                                        |  |  |   | 6.96              | 
|June 8, 2011      |  | June 8, 2021      |  |  | 126,905                    |  |  |  | 4.44                                                        |  |  |   | 5.03               |  |  |  | 126,905                     |  |  |  | 4.44                                                        |  |  |   | 5.03              | 
|May 11, 2012      |  | May 11, 2022      |  |  | 157,871                    |  |  |  | 5.36                                                        |  |  |   | 6.25               |  |  |  | 157,871                     |  |  |  | 5.36                                                        |  |  |   | 6.25              | 
|November 19, 2012 |  | November 19, 2022 |  |  | 39,476                     |  |  |  | 5.88                                                        |  |  |   | 6.60               |  |  |  | 39,476                      |  |  |  | 5.88                                                        |  |  |   | 6.60              | 
|March 21, 2013    |  | March 21, 2023    |  |  | 30,000                     |  |  |  | 6.22                                                        |  |  |   | 8.10               |  |  |  | 22,500                      |  |  |  | 6.22                                                        |  |  |   | 8.10              | 
|March 25, 2015    |  | March 25, 2025    |  |  | 56,821                     |  |  |  | 8.23                                                        |  |  |   | 16.14              |  |  |  | 14,205                      |  |  |  | 8.23                                                        |  |  |   | 16.14             | 
|March 31, 2016    |  | March 25, 2026    |  |  | 96,056                     |  |  |  | 9.25                                                        |  |  |   | 10.53              |  |  |  | -                           |  |  |  | 0.22                                                        |  |  |   | -                 | 
|                  |  |                   |  |  | 628,636                    |  |  |  | 5.79                                                        |  |  | $ | 7.97               |  |  |  | 482,464                     |  |  |  | 4.88                                                        |  |  | $ | 6.73              | 



Performance Share Units (“PSUs”)



Under the Hydrogenics Omnibus Incentive Plan adopted in 2012, the
Company may issue performance based share units to employees, directors and consultants. Pursuant to the Hydrogenics Omnibus Incentive
Plan, participants may be granted a portion of their long-term incentive plan in the form of PSUs instead of RSUs and stock options.
A PSU is a unit, equivalent in value to a common share of the Company. Each PSU entitles the participant to receive a cash payment
or common shares, at the option of the Company. The fair value of the PSUs is recognized as a compensation expense and is pro-rated
over the expected vesting period with the offsetting increase to contributed surplus. Fair value is calculated as the market value
of the common share at the date of grant. Each PSU is subject to vesting performance conditions. The Company estimates the length
of the expected vesting period at the grant date, based on the most likely outcome of the performance conditions. The Company
will revise its estimate of the length of the vesting period, if necessary, if subsequent information indicates that the length
of the vesting period differs from previous estimates and any change to compensation cost will be recognized in the period in
which the revised estimate is made. In the fourth quarter of 2015, the Company revised its estimate of the length of the expected
vesting period based on management’s best estimate of the achievement of the vesting of specific performance conditions.
This adjustment resulted in a reversal of previously charged compensation expense of $543, with the offset to contributed surplus.
In the third quarter of 2016, the Company revised its estimate of the length of the expected vesting period based on management’s
best estimate of the achievement of the vesting of specific performance conditions. This adjustment resulted in a reversal of
previously charged compensation expense of $169, with the offset to contributed surplus. Forfeitures are estimated at the grant
date and are revised to reflect a change in expected or actual forfeitures. The expiry date of PSUs granted is five years from
the date of award.



2016 Consolidated Financial StatementsF-35


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



A summary of the Company’s PSU activity is as follows:



|                        |  |  | 2016    |   |  |  | 2015    |   |  |  | 2014    | 
|----------------------- |  |  | ------- | - |  |  | ------- | - |  |  | ------- | 
|Balance at January 1,   |  |  | 199,772 |   |  |  | 192,320 |   |  |  | 154,493 | 
|Vested – share issuance |  |  | (4,203  | ) |  |  | -       |   |  |  | -       | 
|Forfeited               |  |  | -       |   |  |  | (25,218 | ) |  |  | -       | 
|PSUs issued             |  |  | -       |   |  |  | 32,670  |   |  |  | 37,827  | 
|At December 31,         |  |  | 195,569 |   |  |  | 199,772 |   |  |  | 192,320 | 



Stock-based compensation expense for the year ended December 31,
2016, related to PSUs, was $130 (2015 - $314; 2014 - $236) and was included in selling, general and administrative expenses with
an offsetting increase to contributed surplus. Offsetting this amount is a credit of $169 for the year ended December 31, 2016
(2015 - $543; 2014 - $nil) representing the revision for the change in estimate regarding the achievement of performance conditions.



Restricted Share Units (“RSUs”)



In 2008, the Board of Directors authorized a restricted share unit
plan for senior executives. The RSUs under this plan were to be settled in cash. In 2012, the Omnibus Incentive Plan was adopted,
under which, senior executives may be granted RSUs which are settled in the Company’s shares.



Equity-settled



An RSU is a unit, equivalent in value to a common share of the
Company. The RSUs will be settled by issuance of shares in the Company. The cost of the Company’s RSUs is determined using
the graded vesting method and is charged to selling, general and administrative expenses. RSU’s vest three years from grant
date. The fair value of each grant of RSUs is the fair value of the Company’s share price on the date of grant. The resulting
compensation expense, included in selling, general and administrative expenses, is based on the fair value of the awards granted
is charged to income over the period the employees unconditionally become entitled to the award, with a corresponding increase
to contributed surplus.



A summary of the Company’s RSU (equity-settled) activity
is as follows:



|                      |  |  | 2016   |  |  |  | 2015 |  |  |  | 2014 | 
|--------------------- |  |  | ------ |  |  |  | ---- |  |  |  | ---- | 
|Balance at January 1, |  |  | -      |  |  |  | -    |  |  |  | -    | 
|RSUs issued           |  |  | 52,483 |  |  |  | -    |  |  |  | -    | 
|At December 31,       |  |  | 52,483 |  |  |  | -    |  |  |  | -    | 



Stock-based compensation expense for the year ended December 31,
2016, related to RSUs, was $99 (2015 - $nil) and was included in selling, general and administrative expenses with an offsetting
increase to contributed surplus.



Cash-settled



An RSU is a unit, equivalent in value to a common share of the
Company. Each RSU entitles the participant to receive a cash payment no later than December 31 of the third calendar year following
the year in respect of which the RSUs were granted. Compensation cost for RSUs granted under the Omnibus Plan is recorded as an
expense with a corresponding increase in accrued liabilities and is measured at fair value. Changes in fair value between the
grant date and the measurement date result in a change in the measure of compensation cost.





2016 Consolidated Financial StatementsF-36


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



A summary of the Company’s RSU (cash-settled) activity is
as follows:





|                           |  | 2016 |        | 2015 |  | 2014
|-------------------------- |  | ---- | ------ | ---- |  | ----
|                           |  |      | Number |      |  |     
|Balance at January 1,      |  |      | -      |      |  |     
|RSUs vested redemptions    |  |      | -      |      |  |     
|RSU amortization expense   |  |      | -      |      |  |     
|RSU fair value adjustments |  |      | -      |      |  |     
|At December 31,            |  |      | -      |      |  |     





Deferred Share Units (“DSUs”)



The Company has a deferred share unit plan for directors. Pursuant
to the DSU Plan, non-employee directors are entitled to receive all or any portion of their annual cash retainer and meeting fees
in the form of DSUs instead of cash. A DSU is a unit, equivalent in value to a common share of the Company. Each DSU entitles
the participant to receive a cash payment upon termination of directorship, valued at the price of the Company’s common
share on the Toronto Stock Exchange on the date of termination. Compensation cost for DSUs granted under the DSU plan is recorded
as an expense with a corresponding increase in accrued liabilities and is measured at fair value. The DSU liability is marked-to-market
each reporting period with the offset recorded in selling, general and administrative expenses.



A summary of the Company’s DSU activity is as follows:



|                           |  | 2016 |         | 2015 |  | 2014
|-------------------------- |  | ---- | ------- | ---- |  | ----
|                           |  |      | Number  |      |  |     
|Balance at January 1,      |  |      | 83,628  |      |  | $   
|DSU redemptions            |  |      | -       |      |  |     
|DSU compensation expense   |  |      | 22,878  |      |  |     
|DSU fair value adjustments |  |      | -       |      |  |     
|At December 31,            |  |      | 106,506 |      |  | $   





For the year ended December 30, 2016, the Company recognized $140
(2015 - $108; 2014 - $105) as expense for the issue of new DSUs and a recovery of ($430) (2015 - recovery of ($342), 2014 - expense
of $14) for the mark-to-market adjustment on the liability.



The DSU liability at December 31, 2016 of $456 (2015 - $746) was
included in trade and other payables. DSUs vest immediately on the date of issuance.



2016 Consolidated Financial StatementsF-37


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Summary of stock-based compensation expense (recovery)



|                                                                    |  |   | 2016 |   |  |   | 2015 |   |  |   | 2014 |  
|------------------------------------------------------------------- |  | - | ---- | - |  | - | ---- | - |  | - | ---- | -
|Stock-based compensation expense - stock options                    |  | $ | 330  |   |  | $ | 272  |   |  | $ | 291  |  
|Stock-based compensation expense - PSUs                             |  |   | 130  |   |  |   | 314  |   |  |   | 253  |  
|Stock-based compensation expense – PSUs change in estimate recovery |  |   | (169 | ) |  |   | (543 | ) |  |   | -    |  
|Stock-based compensation expense - RSU (equity-settled)             |  |   | 99   |   |  |   | -    |   |  |   | -    |  
|RSU expense (cash-settled)                                          |  |   | -    |   |  |   | -    |   |  |   | 236  |  
|RSU expense - mark-to-market adjustment (cash-settled)              |  |   | -    |   |  |   | -    |   |  |   | (273 | )
|DSU - new issuance                                                  |  |   | 140  |   |  |   | 108  |   |  |   | 105  |  
|DSU - mark-to-market adjustment                                     |  |   | (430 | ) |  |   | (342 | ) |  |   | 14   |  
|Total                                                               |  | $ | 100  |   |  | $ | (191 | ) |  | $ | 626  |  





Note 20 - Selling, General and Administrative Expenses



|Year ended December 31,                                         |  |   | 2016   |   |  |   | 2015   |   |  |   | 2014   |  
|--------------------------------------------------------------- |  | - | ------ | - |  | - | ------ | - |  | - | ------ | -
|Salaries and benefits, office administration and other expenses |  | $ | 10,319 |   |  | $ | 10,032 |   |  | $ | 10,655 |  
|Depreciation                                                    |  |   | 350    |   |  |   | 329    |   |  |   | 422    |  
|Amortization                                                    |  |   | 56     |   |  |   | 45     |   |  |   | 53     |  
|Stock-based compensation (including stock options and PSUs)     |  |   | 291    |   |  |   | 43     |   |  |   | 544    |  
|RSUs                                                            |  |   | 99     |   |  |   | -      |   |  |   | (37    | )
|DSUs                                                            |  |   | (290   | ) |  |   | (234   | ) |  |   | 119    |  
|Total                                                           |  | $ | 10,825 |   |  | $ | 10,215 |   |  | $ | 11,756 |  



Included in selling, general and administrative expenses for the
year ended December 31, 2016 is a credit of $470 relating to the reversal of an indemnification liability that had been set up
associated with an acquisition in 2004.



Note 21 - Research and Product Development Expenses



Research and product development expenses are recorded net of non-repayable
third party program funding received or receivable. For the years ended December 31, 2016, 2015 and 2014, research and product
development expenses and non-repayable program funding, which have been received or receivable, are as follows:



|Year ended December 31,                             |  |   | 2016   |   |  |   | 2015   |   |  |   | 2014   |  
|--------------------------------------------------- |  | - | ------ | - |  | - | ------ | - |  | - | ------ | -
|Research and product development expenses           |  | $ | 8,247  |   |  | $ | 6,198  |   |  | $ | 6,682  |  
|Government research and product development funding |  |   | (4,671 | ) |  |   | (2,051 | ) |  |   | (3,398 | )
|Development costs capitalized                       |  |   | -      |   |  |   | (77    | ) |  |   | -      |  
|Total                                               |  | $ | 3,576  |   |  | $ | 4,070  |   |  | $ | 3,284  |  





2016 Consolidated Financial StatementsF-38


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 22- Key Management Compensation



Key management includes the Company’s directors and key executive
members.



|Year ended December 31,                   |  |   | 2016  |  |  |   | 2015  |  |  |   | 2014  | 
|----------------------------------------- |  | - | ----- |  |  | - | ----- |  |  | - | ----- | 
|Salaries and short-term employee benefits |  | $ | 1,936 |  |  | $ | 1,977 |  |  | $ | 2,174 | 
|Stock-based compensation                  |  |   |       |  |  |   |       |  |  |   |       | 
|DSUs                                      |  |   | 140   |  |  |   | 108   |  |  |   | 111   | 
|Stock options                             |  |   | 444   |  |  |   | 379   |  |  |   | -     | 
|RSUs                                      |  |   | 418   |  |  |   | -     |  |  |   | -     | 
|PSUs                                      |  |   | -     |  |  |   | 412   |  |  |   | 311   | 
|Total                                     |  | $ | 2,938 |  |  | $ | 2,876 |  |  | $ | 2,596 | 



Note 23 - Expenses by Nature



The following expenses are included in cost of sales; selling,
general and administrative expenses; and gross research and development expenses.



|Year ended December 31,                        |  |   | 2016   |  |  |   | 2015   |  |  |   | 2014   | 
|---------------------------------------------- |  | - | ------ |  |  | - | ------ |  |  | - | ------ | 
|Raw materials and consumables used             |  | $ | 19,682 |  |  | $ | 25,155 |  |  | $ | 27,381 | 
|Employee benefits (note 24)                    |  |   | 15,576 |  |  |   | 14,913 |  |  |   | 17,286 | 
|Facilities                                     |  |   | 2,643  |  |  |   | 2,680  |  |  |   | 3,189  | 
|Professional services                          |  |   | 1,177  |  |  |   | 1,098  |  |  |   | 1,067  | 
|Depreciation and amortization                  |  |   | 727    |  |  |   | 630    |  |  |   | 662    | 
|Shareholder and other corporate communications |  |   | 562    |  |  |   | 419    |  |  |   | 405    | 
|Insurance                                      |  |   | 449    |  |  |   | 501    |  |  |   | 534    | 
|Marketing                                      |  |   | 381    |  |  |   | 280    |  |  |   | 328    | 
|Other                                          |  |   | 870    |  |  |   | 630    |  |  |   | 1,920  | 
|Total                                          |  | $ | 42,067 |  |  | $ | 46,306 |  |  | $ | 52,772 | 



Note 24 - Employee Benefits Expense



The following employee benefits expenses are included in cost of
sales; selling, general and administrative expenses; and research and product development expenses.



|Year ended December 31,                                                                               |  |   | 2016   |   |  |   | 2015   |   |  |   | 2014   | 
|----------------------------------------------------------------------------------------------------- |  | - | ------ | - |  | - | ------ | - |  | - | ------ | 
|Salaries and wages                                                                                    |  | $ | 14,463 |   |  | $ | 14,145 |   |  | $ | 15,467 | 
|Stock-based compensation (including equity-settled RSUs & PSUs), net of change in management estimate |  |   | 390    |   |  |   | 43     |   |  |   | 544    | 
|Medical, dental and insurance                                                                         |  |   | 330    |   |  |   | 379    |   |  |   | 698    | 
|Pension costs                                                                                         |  |   | 274    |   |  |   | 276    |   |  |   | 121    | 
|Stock-based compensation – DSUs and cash-settled RSUs                                                 |  |   | (290   | ) |  |   | (234   | ) |  |   | 82     | 
|Other                                                                                                 |  |   | 409    |   |  |   | 304    |   |  |   | 374    | 
|Total                                                                                                 |  | $ | 15,576 |   |  | $ | 14,913 |   |  | $ | 17,286 | 





2016 Consolidated Financial StatementsF-39


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 25 - Other Finance Gains and Losses, Net



Components of other finance gains and losses, net are as follows:



|Year ended December 31,                                                                                       |  |   | 2016 |   |  |   | 2015   |   |  |   | 2014 |  
|------------------------------------------------------------------------------------------------------------- |  | - | ---- | - |  | - | ------ | - |  | - | ---- | -
|Foreign exchange contracts - fair market value adjustment on settled held for trading financial instruments   |  | $ | 20   |   |  | $ | (543   | ) |  | $ | -    |  
|Foreign exchange contracts - fair market value adjustment on unsettled held for trading financial instruments |  |   | -    |   |  |   | (43    | ) |  |   | -    |  
|Revaluation of variable rate long-term debt - Export Development Canada                                       |  |   | (45  | ) |  |   | -      |   |  |   | -    |  
|Gain from change in fair value of outstanding warrants (note 14)                                              |  |   | 760  |   |  |   | 133    |   |  |   | -    |  
|Loss from change in fair value of exercised warrants                                                          |  |   |      |   |  |   |        |   |  |   | (142 | )
|Issuance of warrants (note 14)                                                                                |  |   | -    |   |  |   | (885   | ) |  |   | -    |  
|Loss from change in net present value of repayable government contribution (note 17)                          |  |   | -    |   |  |   | -      |   |  |   | (38  | )
|Total                                                                                                         |  | $ | 735  |   |  | $ | (1,338 | ) |  | $ | (180 | )



Note 26 - Income Taxes



The Corporation had net losses for the periods ended December 31,
2016 and 2015 and income tax expense was $nil for each of these years.



The estimated income tax rate for the Company is based on substantively
enacted corporate tax rates, expected timing of reversals, and expected taxable income allocation to various tax jurisdictions.



The Company’s computation of income tax expense is as follows:



|Year ended December 31,                                                       |  |   | 2016   |   |  |   | 2015    |   |  |   | 2014   |  
|----------------------------------------------------------------------------- |  | - | ------ | - |  | - | ------- | - |  | - | ------ | -
|Loss before income taxes                                                      |  | $ | (9,857 | ) |  | $ | (11,442 | ) |  | $ | (4,523 | )
|Statutory income tax rate                                                     |  |   | 25     | % |  |   | 25      | % |  |   | 25     | %
|Income tax recovery at statutory rates                                        |  |   | (2,464 | ) |  |   | (2,860  | ) |  |   | (1,130 | )
|Non-deductible expenses                                                       |  |   | 24     |   |  |   | 102     |   |  |   | 82     |  
|Other permanent differences                                                   |  |   | (251   | ) |  |   | (68     | ) |  |   | (163   | )
|Effect of income tax and rate changes on deferred income taxes                |  |   | -      |   |  |   | 168     |   |  |   | -      |  
|Effect of foreign currency rate changes on deferred income taxes              |  |   | 509    |   |  |   | 3,423   |   |  |   | (576   | )
|Income taxes at different rates in foreign and other provincial jurisdictions |  |   | (261   | ) |  |   | (370    | ) |  |   | (198   | )
|Other                                                                         |  |   | 155    |   |  |   | (103    | ) |  |   | (195   | )
|Tax losses and other temporary differences not recognized                     |  |   | 2,288  |   |  |   | (292    | ) |  |   | 2,180  |  
|Total                                                                         |  | $ | -      |   |  | $ | -       |   |  | $ | -      |  



2016 Consolidated Financial StatementsF-40


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



At December 31, 2016, the Company has available income tax loss
carry-forwards of $80,351 that may be used to reduce taxable income in future years, in certain jurisdictions, expiring as follows:



|For the years ended |  |   |        | 
|------------------- |  | - | ------ | 
|2023                |  | $ | 130    | 
|2024                |  |   | 190    | 
|2025                |  |   | 244    | 
|2026                |  |   | 512    | 
|2027                |  |   | 14     | 
|2028                |  |   | 1      | 
|2029                |  |   | 517    | 
|2030                |  |   | 7,208  | 
|2031                |  |   | 6,432  | 
|2032                |  |   | 5,706  | 
|2033                |  |   | -      | 
|2034                |  |   | 4,680  | 
|2035                |  |   | 6,238  | 
|2036                |  |   | 4,627  | 
|No expiry           |  |   | 50,899 | 
|Total               |  | $ | 87,398 | 



Components of the Company’s deductible temporary differences
and unused tax losses are:



|Year ended December 31,                                 |  |   | 2016   |  |  |   | 2015   | 
|------------------------------------------------------- |  | - | ------ |  |  | - | ------ | 
|Non-capital losses                                      |  | $ | 26,094 |  |  | $ | 24,224 | 
|Investment tax credits                                  |  |   | 1,654  |  |  |   | 1,460  | 
|Scientific research and experimental development        |  |   | 1,114  |  |  |   | 909    | 
|Property, plant and equipment and intellectual property |  |   | 1,224  |  |  |   | 1,027  | 
|Provisions                                              |  |   | 96     |  |  |   | 190    | 
|Other                                                   |  |   | 163    |  |  |   | 247    | 
|Total                                                   |  | $ | 30,346 |  |  | $ | 28,057 | 



No deferred income tax asset has been recognized in respect of
the $30,346 of losses and other temporary differences, reflecting uncertainty associated with the realization of the Company’s
deferred income tax assets.



2016 Consolidated Financial StatementsF-41


Hydrogenics Corporation






Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Note 27 - Net Loss Per Share



The loss per share for the periods ended December 31, 2016, 2015
and 2014 was as follows:



|                                                             |  |   |            |  
|------------------------------------------------------------ |  | - | ---------- | -
|                                                             |  |   | 2016       |  
|Net loss                                                     |  | $ | (9,857     | )
|                                                             |  |   |            |  
|Weighted average number of common shares outstanding – basic |  |   | 12,542,950 |  
|Dilutive effect of stock options                             |  |   | -          |  
|Dilutive effect of warrants                                  |  |   | -          |  
|Weighted average number of shares outstanding – diluted      |  |   | 12,542,950 |  
|Net loss per share – basic and diluted                       |  | $ | (0.79      | )



No effect has been given to the potential exercise of stock options
and warrants in the calculation of diluted net loss per share, as their impact would be anti-dilutive.









Note 28 – Commitments and Contingencies



Forgivable loan facility



In November 2014, Hydrogenics entered into an agreement with the
Independent Electricity System Operators (“IESO”) to provide a 2MW Power-to-Gas storage unit to the Province of Ontario.
It is anticipated that the unit will be installed in 2017. Hydrogenics will receive a total of C$2,950, paid in equal monthly
instalments, in return for IESO’s use of the energy storage solution over the three-year period.



In order to partially fund the development of the unit, Hydrogenics
and the Province of Ontario, through the Ministry of Research and Innovation (“MRI”), negotiated a forgivable loan
facility from the Innovation Demonstration Fund Program (“IDF”). The loan bears interest at 3.23%, is expected to
mature on June 30, 2020 and the principal and interest are forgivable upon the satisfaction of certain criteria. Under the terms
of the loan agreement, the government has committed to fund up to C$4,000 through a forgivable loan, to be funded at 50% of eligible
costs incurred on the project. The total cost of the energy storage solution is expected to be greater than C$8,000, of which
C$4,000 will be funded through the forgivable loan and the balance will be funded 49% by Hydrogenics and 51% by Enbridge. The
project completion date is expected to be April 30, 2017.



The forgiveness of the principal and interest on the loan is contingent
on a final commercialization report satisfactory to MRI, indicating successful commissioning and verification of the operation
of the multi-stack two MW PEM electrolyzer and demonstrated performance capabilities that would be deemed acceptable for ancillary
service as per the IESO specifications. The forgivable loan has been accounted for as a government grant as management estimates
there is reasonable assurance that the terms of forgiveness will be met.



At December 31, 2016, the Company has accumulated total costs in
building the unit of $3,115, which have been classified as property, plant and equipment. The Company has received or accrued
total funding of $1,502 under the IDF loan. The actual funding percentage varies from committed funding percentage due to foreign
exchange translation. As of December 31, 2016, a total of $391 was accrued as funding receivables. The accumulated costs net of
funding amounts have been recorded as a reduction to property, plant and equipment within construction in progress (note 10).





2016 Consolidated Financial StatementsF-42


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Rental expenses



The Company incurred rental expenses of $883 under operating leases
in 2016 (2015 - $894; 2014 - $884). The Company has future minimum lease payments under operating leases relating to premises,
office equipment and vehicles as follows:



|For the years ended |  |   |       | 
|------------------- |  | - | ----- | 
|2017                |  |   | 1,013 | 
|2018                |  |   | 821   | 
|2019                |  |   | 512   | 
|2020                |  |   | 427   | 
|2021                |  |   | 285   | 
|Thereafter          |  |   | 7     | 
|Total               |  | $ | 3,065 | 



The Company leases various premises, office equipment and vehicles
under non-cancellable operating lease agreements. The lease agreements are classified as non-cancellable, as penalties are charged
if cancellation does occur. Certain leases contain purchase option clauses, which provide the Company with the ability to purchase
the equipment or automobile at fair value at the time of exercise. The leases have varying terms, escalation clauses and renewal
rights.



Indemnification agreements



The Company has entered into indemnification agreements with its
current and former directors and officers to indemnify them, to the extent permitted by law, against any and all charges, costs,
expenses, amounts paid in settlement, and damages incurred by the directors and officers as a result of any lawsuit or any other
judicial, administrative or investigative proceeding in which the directors and officers are sued as a result of their service.



These indemnification claims will be subject to any statutory or
other legal limitation period. The nature of the indemnification agreements prevents the Company from making a reasonable estimate
of the maximum potential amount it could be required to pay to counterparties. The Company has purchased directors’ and
officers’ liability insurance. No amount has been recorded in the consolidated financial statements with respect to these
indemnification agreements, as the Company is not aware of any claims.



In the normal course of operations, the Company may provide indemnification
agreements, other than those listed above, to counterparties that require the Company to compensate them for costs incurred as
a result of changes in laws and regulations or as a result of litigation claims or statutory sanctions that may be suffered by
the counterparty as a consequence of the transaction. The terms of these indemnification agreements will vary based on the contract.
The nature of the indemnification agreements prevents the Company from making a reasonable estimate of the maximum potential amount
it could be required to pay to counterparties. No amount has been recorded in the consolidated financial statements with respect
to these indemnification agreements, as the Company is not aware of any claims.



Note 29 - Related Party Transactions



In the normal course of operations, the Company subcontracts certain
manufacturing functions to a company owned by a family member of an executive officer and director of the Company. During 2016,
Hydrogenics made purchases of $358 (2015 - $105; 2014 - $171) from this related company. At December 31, 2016, the Company had
an accounts payable balance due to this related party of $21 (2015 - $26; 2014 - $12).





2016 Consolidated Financial StatementsF-43


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company holds an equity investment in the joint venture Kolon
Hydrogenics. During 2016, the Company had sales to the joint venture of $189 (2015 - $724; 2014 - $3,136), and at the end of December
31, 2016 the Company had a receivable of $4 (2015 - $359; 2014 - $935) owing from the joint venture.



All related party transactions involve the parent company. There
are no related party transactions to disclose for the Company’s subsidiaries.



Note 30 - Consolidated Statements of Cash Flows



Components of the net change in non-cash operating assets and liabilities
are as follows:



|December
    31,                                       |  |   | 2016   |   |  |   | 2015   |   |  |   | 2014    |  
|------------------------------------------------------ |  | - | ------ | - |  | - | ------ | - |  | - | ------- | -
|Decrease (increase) in current assets                  |  |   |        |   |  |   |        |   |  |   |         |  
|Trade and other receivables                            |  | $ | 491    |   |  | $ | 2,177  |   |  | $ | (7,447  | )
|Inventories                                            |  |   | (3,251 | ) |  |   | (314   | ) |  |   | (1,877  | )
|Prepaid expenses                                       |  |   | (492   | ) |  |   | 312    |   |  |   | 232     |  
|Increase (decrease) in current liabilities             |  |   |        |   |  |   |        |   |  |   |         |  
|Trade and other payables, including warranty provision |  |   | (1,669 | ) |  |   | (2,878 | ) |  |   | (624    | )
|Deferred revenue                                       |  |   | (461   | ) |  |   | 2,301  |   |  |   | (741    | )
|Total                                                  |  | $ | (5,382 | ) |  | $ | 1,598  |   |  | $ | (10,457 | )



Note 31 - Segmented Financial Information



The Company’s two reportable segments include OnSite Generation
and Power Systems. Segmentation is based on the internal reporting and organizational structure, taking into account the different
risk and income structures of the key products and production processes of the Company. Where applicable, corporate and other
activities are reported separately as Corporate and Other. OnSite Generation includes the design, development, manufacture and
sale of hydrogen generation products. Power Systems includes the design, development, manufacture and sale of fuel cell products



Financial information by reportable segment for the years ended
December 31, 2016, 2015, and 2014 was as follows:



|Year ended December 31, 2016                 |  |   | OnSite 
Generation |  |  |   | Power 
Systems |   |  |   | Corporateand Other |   |  |   | Total  |  
|-------------------------------------------- |  | - | ------------------ |  |  | - | -------------- | - |  | - | ------------------ | - |  | - | ------ | -
|Revenues from external customers             |  | $ | 17,510             |  |  | $ | 11,480         |   |  | $ | -                  |   |  | $ | 28,990 |  
|Gross profit                                 |  |   | 3,465              |  |  |   | 2,530          |   |  |   | -                  |   |  |   | 5,995  |  
|Selling, general and administrative expenses |  |   | 2,910              |  |  |   | 4,579          |   |  |   | 3,336              |   |  |   | 10,825 |  
|Research and product development expenses    |  |   | 516                |  |  |   | 2,889          |   |  |   | 171                |   |  |   | 3,576  |  
|Segment income (loss)                        |  |   | 39                 |  |  |   | (4,938         | ) |  |   | (3,507             | ) |  |   | (8,406 | )
|Interest expense, net                        |  |   | -                  |  |  |   | -              |   |  |   | (1,762             | ) |  |   | (1,762 | )
|Foreign currency losses, net                 |  |   | -                  |  |  |   | -              |   |  |   | (268               | ) |  |   | (268   | )
|Loss in joint venture                        |  |   | -                  |  |  |   | -              |   |  |   | (156               | ) |  |   | (156   | )
|Other finance losses, net                    |  |   | -                  |  |  |   | -              |   |  |   | 735                |   |  |   | 735    |  
|Loss before income taxes                     |  | $ | 39                 |  |  | $ | (4,938         | ) |  | $ | (4,958             | ) |  |   | (9,857 | )



2016 Consolidated Financial StatementsF-44


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



|Year ended December 31, 2015                 |  |   | OnSite  Generation |   |  |   | Power  Systems |   |  |   | Corporateand Other |   |  |   | Total   |  
|-------------------------------------------- |  | - | ------------------ | - |  | - | -------------- | - |  | - | ------------------ | - |  | - | ------- | -
|Revenues from external customers             |  | $ | 23,556             |   |  | $ | 12,308         |   |  | $ | -                  |   |  | $ | 35,864  |  
|Gross profit                                 |  |   | 3,391              |   |  |   | 2,580          |   |  |   | -                  |   |  |   | 5,971   |  
|Selling, general and administrative expenses |  |   | 2,665              |   |  |   | 3,920          |   |  |   | 3,630              |   |  |   | 10,215  |  
|Research and product development expenses    |  |   | 1,917              |   |  |   | 2,126          |   |  |   | 27                 |   |  |   | 4,070   |  
|Segment loss                                 |  |   | (1,191             | ) |  |   | (3,466         | ) |  |   | (3,657             | ) |  |   | (8,314  | )
|Interest expense, net                        |  |   | -                  |   |  |   | -              |   |  |   | (1,322             | ) |  |   | (1,322  | )
|Foreign currency losses, net                 |  |   | -                  |   |  |   | -              |   |  |   | (428               | ) |  |   | (428    | )
|Loss in joint venture                        |  |   | -                  |   |  |   | -              |   |  |   | (40                | ) |  |   | (40     | )
|Other finance losses, net                    |  |   | -                  |   |  |   | -              |   |  |   | (1,338             | ) |  |   | (1,338  | )
|Loss before income taxes                     |  | $ | (1,191             | ) |  | $ | (3,466         | ) |  | $ | (6,785             | ) |  |   | (11,442 | )





|Year ended December 31, 2014                 |  |   | OnSite  Generation |  |  |   | Power  Systems |   |  |   | Corporateand Other |   |  |   | Total  |  
|-------------------------------------------- |  | - | ------------------ |  |  | - | -------------- | - |  | - | ------------------ | - |  | - | ------ | -
|Revenues from external customers             |  | $ | 30,192             |  |  | $ | 15,356         |   |  | $ | -                  |   |  | $ | 45,548 |  
|Gross profit                                 |  |   | 6,102              |  |  |   | 5,112          |   |  |   | -                  |   |  |   | 11,214 |  
|Selling, general and administrative expenses |  |   | 3,293              |  |  |   | 4,143          |   |  |   | 4,320              |   |  |   | 11,756 |  
|Research and product development expenses    |  |   | 1,070              |  |  |   | 2,194          |   |  |   | 20                 |   |  |   | 3,284  |  
|Segment income (loss)                        |  |   | 1,739              |  |  |   | (1,225         | ) |  |   | (4,340             | ) |  |   | (3,826 | )
|Interest expense, net                        |  |   | -                  |  |  |   | -              |   |  |   | (540               | ) |  |   | (540   | )
|Foreign currency gains (losses), net         |  |   | -                  |  |  |   | -              |   |  |   | 117                |   |  |   | 117    |  
|Loss in joint venture                        |  |   | -                  |  |  |   | -              |   |  |   | (94                | ) |  |   | (94    | )
|Other finance losses, net                    |  |   | -                  |  |  |   | -              |   |  |   | (180               | ) |  |   | (180   | )
|Income (loss) before income taxes            |  | $ | 1,739              |  |  | $ | (1,225         | ) |  | $ | (5,037             | ) |  | $ | (4,523 | )



Balance sheet information by reportable segment at December 31,
2016 and 2015 was as follows:



|At December 31, 2016                          |  |   | OnSite  Generation |  |  |   | Power  Systems |  |  |   | Corporateand Other |  |  |   | Total  | 
|--------------------------------------------- |  | - | ------------------ |  |  | - | -------------- |  |  | - | ------------------ |  |  | - | ------ | 
|Cash and cash equivalents and restricted cash |  | $ | 3,629              |  |  | $ | 180            |  |  | $ | 7,469              |  |  | $ | 11,278 | 
|Trade and other receivables                   |  |   | 3,282              |  |  |   | 6,520          |  |  |   | -                  |  |  |   | 9,802  | 
|Inventories                                   |  |   | 10,214             |  |  |   | 6,994          |  |  |   | -                  |  |  |   | 17,208 | 
|Investment in joint venture                   |  |   | -                  |  |  |   | -              |  |  |   | 1,750              |  |  |   | 1,750  | 
|Property, plant and equipment                 |  |   | 402                |  |  |   | 3,693          |  |  |   | -                  |  |  |   | 4,095  | 
|Goodwill and intangibles                      |  |   | 4,124              |  |  |   | 4              |  |  |   | 94                 |  |  |   | 4,222  | 
|Other assets                                  |  |   | 174                |  |  |   | 648            |  |  |   | 96                 |  |  |   | 918    | 
|Total Assets                                  |  | $ | 21,825             |  |  | $ | 18,039         |  |  | $ | 9,409              |  |  | $ | 49,273 | 
|Current liabilities                           |  | $ | 10,491             |  |  | $ | 11,682         |  |  | $ | 3,121              |  |  | $ | 25,294 | 
|Non-current liabilities                       |  |   | 1,135              |  |  |   | 5,944          |  |  |   | 6,518              |  |  |   | 13,597 | 
|Total Liabilities                             |  | $ | 11,626             |  |  | $ | 17,626         |  |  | $ | 9,639              |  |  | $ | 38,891 | 



2016 Consolidated Financial StatementsF-45


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



|At December 31, 2015                          |  |   | OnSite  Generation |  |  |   | Power  Systems |  |  |   | Corporateand Other |  |  |   | Total  | 
|--------------------------------------------- |  | - | ------------------ |  |  | - | -------------- |  |  | - | ------------------ |  |  | - | ------ | 
|Cash and cash equivalents and restricted cash |  | $ | 6,120              |  |  | $ | 456            |  |  | $ | 18,325             |  |  | $ | 24,901 | 
|Trade and other receivables                   |  |   | 3,109              |  |  |   | 7,310          |  |  |   | -                  |  |  |   | 10,419 | 
|Inventories                                   |  |   | 9,824              |  |  |   | 4,446          |  |  |   | -                  |  |  |   | 14,270 | 
|Investment in joint venture                   |  |   | -                  |  |  |   | -              |  |  |   | 1,951              |  |  |   | 1,951  | 
|Property, plant and equipment                 |  |   | 410                |  |  |   | 2,639          |  |  |   | -                  |  |  |   | 3,049  | 
|Goodwill and intangibles                      |  |   | 4,257              |  |  |   | -              |  |  |   | 93                 |  |  |   | 4,350  | 
|Other assets                                  |  |   | 106                |  |  |   | 207            |  |  |   | 115                |  |  |   | 428    | 
|Total Assets                                  |  | $ | 23,826             |  |  | $ | 15,058         |  |  | $ | 20,484             |  |  | $ | 59,368 | 
|Current liabilities                           |  | $ | 13,434             |  |  | $ | 7,567          |  |  | $ | 9,296              |  |  | $ | 30,297 | 
|Non-current liabilities                       |  |   | 1,124              |  |  |   | 7,569          |  |  |   | 130                |  |  |   | 8,823  | 
|Total Liabilities                             |  | $ | 14,558             |  |  | $ | 15,136         |  |  | $ | 9,426              |  |  | $ | 39,120 | 



The Company’s derivative financial instruments are considered to be segment liabilities
and are included in OnSite Generation.



Property, plant and equipment are located in the following countries:



|Year ended December 31, |  |   | 2016  |  |  |   | 2015  | 
|----------------------- |  | - | ----- |  |  | - | ----- | 
|Canada                  |  | $ | 3,518 |  |  | $ | 2,374 | 
|Belgium                 |  |   | 401   |  |  |   | 410   | 
|Germany                 |  |   | 176   |  |  |   | 265   | 
|Total                   |  | $ | 4,095 |  |  | $ | 3,049 | 



Revenue from external customers by region was as follows:



|Year ended December 31,   |  |   | 2016   |  |  |   | 2015   |  |  |   | 2014   | 
|------------------------- |  | - | ------ |  |  | - | ------ |  |  | - | ------ | 
|European Union            |  | $ | 14,377 |  |  | $ | 15,106 |  |  | $ | 15,645 | 
|Eastern Europe            |  |   | 3,906  |  |  |   | 7,695  |  |  |   | 11,084 | 
|North America             |  |   | 2,525  |  |  |   | 6,288  |  |  |   | 7,712  | 
|Asia                      |  |   | 6,747  |  |  |   | 4,300  |  |  |   | 8,336  | 
|South and Central America |  |   | 693    |  |  |   | 1,051  |  |  |   | 1,838  | 
|Africa                    |  |   | 358    |  |  |   | 927    |  |  |   | 330    | 
|Middle East               |  |   | 288    |  |  |   | 389    |  |  |   | 523    | 
|Oceania and Carribbean    |  |   | 96     |  |  |   | 108    |  |  |   | 80     | 
|Total                     |  | $ | 28,990 |  |  | $ | 35,864 |  |  | $ | 45,548 | 



2016 Consolidated Financial StatementsF-46


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Revenue for the largest customers as a percentage of the total
revenue was as follows:



|Year ended December 31,                                             |  |  | 2016 |   |  |  | 2015 |   |  |  | 2014 |  
|------------------------------------------------------------------- |  |  | ---- | - |  |  | ---- | - |  |  | ---- | -
|First largest (Power segment)                                       |  |  | 10   | % |  |  | 13   | % |  |  | 14   | %
|Second largest (2016 and 2014, Generation, 2015 Power)              |  |  | 9    | % |  |  | 6    | % |  |  | 10   | %
|Third largest (2016 Power, 2015, Generation, 2014 Power/Generation) |  |  | 9    | % |  |  | 5    | % |  |  | 8    | %
|Fourth largest (2016 and 2015 Generation, 2014  Power)              |  |  | 8    | % |  |  | 5    | % |  |  | 8    | %
|All other customers                                                 |  |  | 64   | % |  |  | 71   | % |  |  | 60   | %
|Total                                                               |  |  | 100  | % |  |  | 100  | % |  |  | 100  | %



Note 32 - Risk Management Arising From Financial Instruments



Fair value



The carrying value of cash and cash equivalents, restricted cash,
trade and other receivables, and trade and other payables approximates their fair value given their short-term nature. The carrying
value of the non-current liabilities approximates their fair value given the difference between the discount rates used to recognize
the liabilities in the consolidated balance sheets and the market rates of interest is insignificant.



Fair value measurements recognized in the consolidated balance
sheets must be categorized in accordance with the following levels:



| | (i) | Level 1: quoted prices (unadjusted)
                                         in active markets for identical assets or liabilities;
| | --- | -----------------------------------------------------------------------------------------------------------------------------------



| | (ii) | Level 2: inputs other than quoted
                                         prices included in Level 1 that are observable for the asset or liability, either directly
                                         (i.e. as prices) or indirectly (i.e. derived from prices); and
| | ---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (iii) | Level 3: inputs for the asset
                                         or liability that are not based on observable market data (unobservable inputs).
| | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------



The fair value of the liabilities relating to the RSUs and DSUs
is classified as Level 1. The fair value of the derivative assets/liabilities and warrants are classified as Level 2.



The Company has not transferred any financial instruments between
Levels 1, 2, or 3 of the fair value hierarchy during the year ended December 31, 2016.





2016 Consolidated Financial StatementsF-47


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



Financial instruments are classified into one of the following
categories: fair value through profit and loss; held-to-maturity; available-for-sale; loans and receivables; and other financial
liabilities. The following table summarizes information regarding the carrying value of the Company’s financial instruments:



|                                                                        |  |   | 2016   |  |  |   | 2015   | 
|----------------------------------------------------------------------- |  | - | ------ |  |  | - | ------ | 
|Cash and cash equivalents                                               |  | $ | 10,338 |  |  | $ | 23,398 | 
|Restricted cash                                                         |  |   | 405    |  |  |   | 971    | 
|Restricted cash – non-current                                           |  |   | 535    |  |  |   | 532    | 
|Trade and other receivables                                             |  |   | 9,802  |  |  |   | 10,419 | 
|Loans and receivables                                                   |  | $ | 21,080 |  |  | $ | 35,320 | 
|Trade and other payables                                                |  | $ | 7,235  |  |  | $ | 7,776  | 
|Current portion of long-term debt and repayable government contribution |  |   | 3,154  |  |  |   | 7,494  | 
|DSU liability                                                           |  |   | 456    |  |  |   | 746    | 
|Operating borrowings                                                    |  |   | 2,111  |  |  |   | 1,086  | 
|Warrants                                                                |  |   | 325    |  |  |   | 752    | 
|Non-current portion of long-term debt                                   |  |   | 8,864  |  |  |   | 2,702  | 
|Non-current portion of repayable government contributions               |  |   | -      |  |  |   | 130    | 
|Post-retirement benefit liabilities                                     |  |   | 377    |  |  |   | 288    | 
|Derivative liability                                                    |  |   | -      |  |  |   | 42     | 
|Capital lease                                                           |  |   | 25     |  |  |   | -      | 
|Other financial liabilities                                             |  | $ | 22,547 |  |  | $ | 21,016 | 



Liquidity risk



The Company has sustained losses and negative cash flows from operations
since its inception. At December 31, 2016, the Company had $10,338 (2015 - $23,398) of current unrestricted cash and cash equivalents.
Liquidity risk is the risk the Company will encounter difficulty in meeting its financial obligations associated with financial
liabilities that are settled by delivering cash or another financial asset. The Company is exposed to liquidity risk as it continues
to have net cash outflows to support its operations. The Company’s objective for liquidity risk management is to maintain
sufficient liquid financial resources to fund the consolidated balance sheets, pursue growth and development strategies, and to
meet commitments and obligations in the most cost-effective manner possible. The Company achieves this by maintaining sufficient
cash and cash equivalents and short-term investments and managing working capital. The Company monitors its financial position
on a monthly basis at minimum, and updates its expected use of cash resources based on the latest available data. Such forecasting
takes into consideration the Company’s financing plans and compliance with internal targets. A significant portion of the
Company’s financial liabilities is classified as current liabilities, as settlement is expected within one year.



(vi)There are uncertainties related to the timing and use of the Company’s cash resources and working capital requirements.
These uncertainties include, among other things, the timing and volume of commercial sales and associated gross margin of our
existing products and the development of markets for, and customer acceptance of, new products. Throughout 2017, we do not expect
the Company’s operations to generate sufficient cash flow to fund our obligations as they come due. As such, these obligations
will be funded out of existing and forecasted cash resources to the extent possible. Hydrogenics may need to take additional measures
to increase its liquidity and capital resources, including obtaining additional debt or equity financing, pursuing joint-venture
partnerships, equipment financings or other receivables financing arrangements. Hydrogenics may experience difficulty in obtaining
satisfactory financing terms. Failure to obtain adequate financing on satisfactory terms could have a material adverse effect
on Hydrogenics’ results of operations or financial condition.





2016 Consolidated Financial StatementsF-48


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The following table details the Company’s contractual maturity
for its net financial liabilities. The information presented is based on the earliest date on which the Company can be required
to pay and represents the undiscounted cash flow including principal and interest.



|At December 31, 2016                                                                  |  |   | Due in less  than 1 year |  |  |   | Due in 1-3  years |  |  |   | Due in 4-5  years |  |  |   | Due in 6-10  years | 
|------------------------------------------------------------------------------------- |  | - | ------------------------ |  |  | - | ----------------- |  |  | - | ----------------- |  |  | - | ------------------ | 
|Trade and other payables                                                              |  | $ | 7,235                    |  |  | $ | -                 |  |  | $ | -                 |  |  | $ | -                  | 
|Deferred share unit liability                                                         |  |   | 290                      |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Operating borrowings                                                                  |  |   | 2,111                    |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Warrants                                                                              |  |   | 325                      |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Current portion of long-term debt - Province of Ontario and Export Development Canada |  |   | 3,326                    |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Repayable government contributions                                                    |  |   | 154                      |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Long-term debt                                                                        |  |   | -                        |  |  |   | 7,577             |  |  |   | 6,394             |  |  |   | -                  | 
|Total                                                                                 |  | $ | 13,441                   |  |  | $ | 7,577             |  |  | $ | 6,394             |  |  | $ | -                  | 





|At December 31, 2015                                                      |  |   | Due in less than 1 year |  |  |   | Due in 1-3  years |  |  |   | Due in 4-5  years |  |  |   | Due in 6-10  years | 
|------------------------------------------------------------------------- |  | - | ----------------------- |  |  | - | ----------------- |  |  | - | ----------------- |  |  | - | ------------------ | 
|Trade and other payables                                                  |  | $ | 7,776                   |  |  | $ | -                 |  |  | $ | -                 |  |  | $ | -                  | 
|Deferred share unit liability                                             |  |   | 746                     |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Operating borrowings                                                      |  |   | 1,086                   |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Warrants                                                                  |  |   | 752                     |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Current portion of long-term debt - Province of Ontario and institutional |  |   | 7,663                   |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Repayable government contributions                                        |  |   | 208                     |  |  |   | 160               |  |  |   | -                 |  |  |   | -                  | 
|Derivative liability                                                      |  |   | 42                      |  |  |   | -                 |  |  |   | -                 |  |  |   | -                  | 
|Long-term debt                                                            |  |   | -                       |  |  |   | 1,939             |  |  |   | 1,817             |  |  |   | 863                | 
|Total                                                                     |  | $ | 18,273                  |  |  | $ | 2,099             |  |  | $ | 1,817             |  |  | $ | 863                | 



At December 31, 2015



|Derivatives                |  |   | Due in less  than 1 year | 
|-------------------------- |  | - | ------------------------ | 
|Notional Amount Receivable |  |   |                          | 
|Euro                       |  | $ | 1,910                    | 
|Notional Amount Payable    |  |   |                          | 
|USD                        |  |   | 1,750                    | 
|GBP                        |  | $ | 221                      | 



Credit risk



Credit risk arises from the risk one party to a financial instrument
will cause a financial loss for the other party by failing to discharge an obligation. The Company is exposed to credit risk from
customers. At December 31, 2016, the Company’s two largest customers accounted for 19% of revenue (19% at December 31, 2015)
and 70% of accounts receivable (2015 - 61%). In order to minimize the risk of loss for trade receivables, the Company’s
extension of credit to customers involves a review and approval by senior management as well as progress payments as contracts
are executed and in some cases, irrevocable letters of credit. The majority of the Company’s sales are invoiced with payment
terms between 30 and 60 days. The Company’s objective is to minimize its exposure to credit risk from customers in order
to prevent losses on financial assets by performing regular monitoring of overdue balances and to provide an allowance for potentially
uncollectible accounts receivable.





2016 Consolidated Financial StatementsF-49


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company’s trade receivables have a carrying value of
$7,271 at December 31, 2016 (2015 - $8,764), representing the maximum exposure to credit risk of those financial assets, exclusive
of the allowance for doubtful accounts.



The aging of these receivables is as follows:



|At December 31,                                        |  |  | 2016 |   |  |  | 2015 |  
|------------------------------------------------------ |  |  | ---- | - |  |  | ---- | -
|Not due                                                |  |  | 88   | % |  |  | 89   | %
|Less than 30 days past due                             |  |  | 4    |   |  |  | 7    |  
|Less than 60 days past due, more than 30 days past due |  |  | 2    |   |  |  | 2    |  
|More than 60 days past due                             |  |  | 6    |   |  |  | 2    |  
|Total                                                  |  |  | 100  | % |  |  | 100  | %



The Company’s gross exposure to credit risk for trade receivables
by geographic area at December 31 was as follows:



|At December 31, |  |  | 2016 |   |  |  | 2015 |  
|--------------- |  |  | ---- | - |  |  | ---- | -
|Europe          |  |  | 90   | % |  |  | 72   | %
|North America   |  |  | 2    |   |  |  | 9    |  
|Asia            |  |  | 4    |   |  |  | 4    |  
|Rest of world   |  |  | 4    |   |  |  | 15   |  
|Total           |  |  | 100  | % |  |  | 100  | %



The activity of the allowance for doubtful accounts for the year
is as follows:



|                                                   |  |   | 2016 |   |  |   | 2015 |  
|-------------------------------------------------- |  | - | ---- | - |  | - | ---- | -
|Allowance for doubtful accounts, beginning of year |  | $ | 127  |   |  | $ | 133  |  
|Bad debt expense                                   |  |   | 816  |   |  |   | -    |  
|Reversal of bad debt expense                       |  |   | (28  | ) |  |   | (6   | )
|Writeoff of bad debts                              |  |   | -    |   |  |   | -    |  
|December 31,                                       |  | $ | 915  |   |  | $ | 127  |  



The Company believes the credit quality is high for the accounts
receivable, which are neither past due nor impaired based on prior experience of collections of accounts within 60 days of the
payment term on the invoice.



The Company may also have credit risk relating to cash and cash
equivalents and restricted cash, which it manages by dealing with chartered Canadian, chartered Belgian and German banks. The
credit risk is limited because the counterparties are chartered banks with high credit ratings assigned by international credit
rating agencies. In addition, the Company minimizes exposure to credit risk by strategically managing cash balances at individual
banks. As well, the Company may also fund working capital by leveraging credit facilities that are not 100% secured by cash, resulting
in a mitigation of credit risk at the corresponding bank.



The Company’s objective is to minimize its exposure to credit
risk in order to prevent losses on financial assets by placing its investments in lower risk bank acceptances of these banks.
The Company’s cash and cash equivalents and restricted cash was $11,278 at December 31, 2016 (2015 - $24,901), representing
the maximum exposure to credit risk of these financial assets. Approximately 98% (2015 - 99%) of the Company’s cash and
cash equivalents and restricted cash at December 31, 2016 was held by four financial institutions.





2016 Consolidated Financial StatementsF-50


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company’s exposure to credit risk relating to cash and
cash equivalents and restricted cash on deposit segmented by geographic area at December 31, 2016 and 2015 was as follows:



|        |  |  | 2016 |   |  |  | 2015 |  
|------- |  |  | ---- | - |  |  | ---- | -
|Canada  |  |  | 66   | % |  |  | 74   | %
|Belgium |  |  | 32   |   |  |  | 25   |  
|Germany |  |  | 2    |   |  |  | 1    |  
|        |  |  | 100  | % |  |  | 100  | %



Foreign currency risk



Foreign currency risk arises because of fluctuations in exchange
rates. The Company conducts a significant portion of its business activities in currencies other than the Company’s functional
currency of US dollars and the functional currency of its Belgium and German subsidiaries in euros. This primarily includes Canadian
dollar transactions at the parent company and US dollar transactions at the Company’s subsidiaries in Belgium and Germany.



The Company’s objective in managing its foreign currency
risk is to minimize its net exposure to foreign currency cash flows by converting foreign denominated financial assets into the
applicable currency of the foreign subsidiaries to the extent practicable to match the obligations of its financial liabilities.
The Company also periodically enters into foreign exchange forward contracts to limit its exposure to foreign currency rate fluctuations.



Financial assets and financial liabilities denominated in foreign
currencies will be affected by changes in the exchange rate between the functional currency and these foreign currencies. This
primarily includes cash and cash equivalents; trade and other receivables; trade and other payables and other long-term liabilities,
which are denominated in foreign currencies.



The Company recognized a net foreign exchange loss of $268 for
the year ended December 31, 2016 (2015 - a net loss of $428, 2014 - a net gain of $117).







As at December 31, 2016 and at December 31, 2014, the Company had
no foreign exchange forward contracts outstanding. The outstanding forward contracts at December 31, 2015 are reflected on page
F-49.







At December 31, 2016, if the Canadian dollar had strengthened/weakened
by 10% against the US dollar, with all other variables held constant, the net loss would have been lower/higher by $574 as a result
of foreign exchange on the translation of Canadian dollar denominated balances.



At December 31, 2016, if the euro had strengthened/weakened by
10% against the US dollar, with all other variables held constant, the net loss would have been lower by $160 or higher by $180
as a result of foreign exchange on the translation of euro denominated balances in non Euro functional currency entities and on
translation of USD denominated balances in non USD functional currency entities.



Interest rate risk



Cash flow interest rate risk arises because of the fluctuation
in market interest rates. The Company’s objective in managing interest rate risk is to maximize the return on its cash and
cash equivalents and restricted cash. The Company is subject to interest rate risk on its short-term borrowings offset by cash
and cash equivalents. The Company’s borrowings are at a fixed interest rate. Given the prevailing interest rates earned
by the Company’s short-term investments, a 10% increase or decrease would have minimal impact on the Company’s results.



Note 33 – Capital Management



The Company’s objective in managing capital is to ensure
sufficient liquidity to pursue its growth strategy, fund research and product development, while at the same time, taking a conservative
approach toward financial leverage and management of financial risk.



The Company’s primary uses of capital are to finance operations,
increase non-cash working capital and capital expenditures. The Company currently funds these requirements from existing cash
resources, cash raised through share issuances and long-term debt. The Company’s objectives when managing capital are to
ensure the Company will continue to have enough liquidity so it can provide its products and services to its customers and returns
to its shareholders. The Company monitors its capital on the basis of the adequacy of its cash resources to fund its business
plan. In order to maximize the capacity to finance the Company’s ongoing growth, the Company does not currently pay a dividend
to holders of its common shares.





2016 Consolidated Financial StatementsF-51


Hydrogenics Corporation


Hydrogenics Corporation

Notes to Consolidated Financial
Statements

(in thousands of US dollars, except share and per share amounts)



The Company’s capital is composed of debt and shareholders’
equity as follows:



|                                                      |  |   | December 31,  2016 |  |  |   | December 31,  2015 | 
|----------------------------------------------------- |  | - | ------------------ |  |  | - | ------------------ | 
|Shareholders’ equity                                  |  | $ | 10,382             |  |  | $ | 20,248             | 
|Operating borrowings                                  |  |   | 2,111              |  |  |   | 1,086              | 
|Long-term debt and repayable government contributions |  |   | 12,043             |  |  |   | 10,326             | 
|Total                                                 |  |   | 24,536             |  |  |   | 31,660             | 
|Less Cash and cash equivalents and Restricted cash    |  |   | 11,278             |  |  |   | 24,901             | 
|Total capital employed                                |  | $ | 13,258             |  |  | $ | 6,759              | 



































2016 Consolidated Financial StatementsF-52


Hydrogenics Corporation




| | ITEM 19. | EXHIBITS
| | -------- | --------





|Number |  | Description                                                                                                                                                                                                                                                                                                                            
|------ |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1.1*   |  | Articles of Incorporation (incorporated by reference from Exhibit 99.2 to Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.2*   |  | Articles of Arrangement (incorporated by reference from Exhibit 99.4 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                         
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.3*   |  | Certificate of Arrangement (incorporated by reference from Exhibit 99.5 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.4*   |  | Articles of Amendment to the Company’s Articles of Incorporation (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on March 9, 2010)                                                                   
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.5*   |  | By-law No. 1 (incorporated by reference from Exhibit 99.3 to Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                                        
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.6*   |  | Amendment to By-law No. 1 (incorporated by reference from Exhibit 1.6 to Company’s Annual Report on Form 20-F for the year ended December 31, 2009, File No. 000-31815, filed with the Securities and Exchange Commission on March 26, 2010)                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|2.1*   |  | Form of share certificate (incorporated by reference from Exhibit 2.1 to Company’s Annual Report on Form 20-F for the year ended December 31, 2009, File No. 000-31815, filed with the Securities and Exchange Commission on March 26, 2010)                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|2.2*   |  | Warrant agreement dated as of January 14, 2010 between the Company and Mellon Investor Services LLC (including form of warrants) (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on January 14, 2010)
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.1*   |  | Stock Option Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.1 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                              
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.2*   |  | Restricted Share Unit Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.2 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                     
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.3*   |  | Deferred Share Unit Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.3 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                       
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.4*   |  | Lease, dated August 19, 2010 by and between Jeffrey Louis Cooper and Hydrogenics (incorporated by reference from Exhibit 4.4 to Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on March 29, 2011)                                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.5*   |  | Securities Purchase Agreement dated January 11, 2010, among the Company, Iroquois Master Fund Ltd. and Alpha Capital Anstalt (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on January 12, 2010)    





Form 20-FPage 84


Hydrogenics Corporation




|4.6*  |  | Settlement Agreement dated May 21, 2010 between the Company and Alpha Capital Anstalt (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on May 25, 2010)                                                                                                                                                                                                                                                                                                          
|----- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.7*  |  | Settlement Agreement dated May 21, 2010 between the Company and Iroquois Master Fund Ltd. (incorporated by reference from Exhibit 99.4 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on May 25, 2010)                                                                                                                                                                                                                                                                                                      
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.8*  |  | Subscription Agreement, dated August 9, 2010, between CommScope, Inc. of North Carolina and the Company (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on August 10, 2010)+                                                                                                                                                                                                                                                                                    
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.9*  |  | Intellectual Property Licence Agreement, dated August 12, 2010, between CommScope, Inc. of North Carolina and the Company (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on August 12, 2010),+as amended by an amending agreement dated October 25, 2011 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on November 3, 2011)
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.10* |  | Corporate Alliance Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4.27 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 26, 2002)                                                                                                                                                                                                                                                                                                      
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.11* |  | Master Intellectual Property Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4.28 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 26, 2002)                                                                                                                                                                                                                                                                                            
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.12* |  | Governance Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 2 to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                           
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.13* |  | Share Subscription Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 1 to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                   
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.14* |  | Escrow Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4  to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                              
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.15* |  | Registration Rights Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 3 to the Schedule 13D of General Motors Corporation ,File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                  





Form 20-FPage 85


Hydrogenics Corporation




|4.16   |  | Loan Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated as of September 28, 2011, including the General Security Agreement attached as exhibit K thereto (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on March 28, 2012)
|------ |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.17*  |  | Amending Agreement No. 1 to the Loan Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated May 28, 2012 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 1, 2012)                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.18*  |  | Amending Agreement No. 1 to the General Security Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated May 28, 2012 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 1, 2012)                                          
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.19*  |  | Subscription Agreement between Enbridge Inc. and the Company, dated April 20, 2012 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on April 30, 2012)                                                                                                                                                                                        
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.20*± |  | Joint Development Agreement between Enbridge Inc. and the Company, dated April 20, 2012 (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on April 30, 2012)                                                                                                                                                                                   
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.21   |  | Definitive agreement between Kolon Water & Energy and the Company to create a joint venture dated  June 23, 2014 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 23, 2014)                                                                                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.22   |  | Exclusive agreement between Alstom Transport and the Company, dated May 27, 2015 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on May 27, 2015)                                                                                                                                                                                                 
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.23   |  | Loan Agreement between Cinnamon Investments Limited, Bridgecorp Canada, Origin Merchant Principals Fund LP and the Company, dated as of May 6, 2015 (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on May 14, 2015)                                                                                                                              
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.24   |  | Warrant Purchase Agreement between Cinnamon Investments
        Limited, Bridgecorp Canada, Origin Merchant Principals Fund LP and the Company, dated as of May 6, 2015 (incorporated by reference
        from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities
        and Exchange Commission on May 14, 2015)                                                                                          
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.25   |  | Underwriting Agreement between Craig-Hallum Capital Group
        LLC and the Company, dated as of December 11, 2015 (incorporated by reference from Exhibit 99.1 to the Company’s Report of
        Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on December 11, 2015)                                                                                                                                                
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|      

Form 20-FPage 86


Hydrogenics Corporation


|     |  |                                                                                                                                                                                                                                                                                                                              
|---- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|4.26 |  | Loan Agreement between Export Development Canada and the
        Company, dated as of November 4, 2016 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private
        Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on November 10, 2016)            
|     |  |                                                                                                                                                                                                                                                                                                                              
|4.27 |  | Warrant Purchase Agreement between Export Development
        Canada and the Company, dated as of November 4, 2016 (incorporated by reference from Exhibit 99.1 to the Company’s Report
        of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on November 10, 2016)
|     |  |                                                                                                                                                                                                                                                                                                                              
|8.1  |  | List of Significant Subsidiaries                                                                                                                                                                                                                                                                                             
|     |  |                                                                                                                                                                                                                                                                                                                              
|12.1 |  | Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                                                                       
|     |  |                                                                                                                                                                                                                                                                                                                              
|12.2 |  | Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                                                                       
|     |  |                                                                                                                                                                                                                                                                                                                              
|13.1 |  | Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                        
|     |  |                                                                                                                                                                                                                                                                                                                              
|13.2 |  | Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                        
|     |  |                                                                                                                                                                                                                                                                                                                              
|15.1 |  | Consent of PriceWaterhouseCoopers LLP                                                                                                                                                                                                                                                                                        





*      Previously
filed.



+       Portions of
this exhibit have been omitted pursuant to a request for confidential treatment.







Form 20-FPage 87


Hydrogenics Corporation




SIGNATURE



The registrant hereby certifies that it meets all of the requirements
for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.



|                     | HYDROGENICS CORPORATION |                
|-------------------- | ----------------------- | ---------------
|                     |                        
|                     |                        
|                     |                        
|Dated: March 8, 2017 | By:                     | /s/ Robert Motz
|                     |                         | Name:          
|                     |                         | Title:         























Form 20-FPage 88


Hydrogenics Corporation




HYDROGENICS CORPORATION



INDEX TO EXHIBITS





|Number |  | Description                                                                                                                                                                                                                                                                                                                            
|------ |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1.1*   |  | Articles of Incorporation (incorporated by reference from Exhibit 99.2 to Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.2*   |  | Articles of Arrangement (incorporated by reference from Exhibit 99.4 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                         
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.3*   |  | Certificate of Arrangement (incorporated by reference from Exhibit 99.5 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.4*   |  | Articles of Amendment to the Company’s Articles of Incorporation (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on March 9, 2010)                                                                   
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.5*   |  | By-law No. 1 (incorporated by reference from Exhibit 99.3 to Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on October 27, 2009)                                                                                                                        
|       |  |                                                                                                                                                                                                                                                                                                                                        
|1.6*   |  | Amendment to By-law No. 1 (incorporated by reference from Exhibit 1.6 to Company’s Annual Report on Form 20-F for the year ended December 31, 2009, File No. 000-31815, filed with the Securities and Exchange Commission on March 26, 2010)                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|2.1*   |  | Form of share certificate (incorporated by reference from Exhibit 2.1 to Company’s Annual Report on Form 20-F for the year ended December 31, 2009, File No. 000-31815, filed with the Securities and Exchange Commission on March 26, 2010)                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                        
|2.2*   |  | Warrant agreement dated as of January 14, 2010 between the Company and Mellon Investor Services LLC (including form of warrants) (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on January 14, 2010)
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.1*   |  | Stock Option Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.1 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                              
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.2*   |  | Restricted Share Unit Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.2 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                     
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.3*   |  | Deferred Share Unit Plan dated June 22, 2009 (incorporated by reference from Exhibit 4.3 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 30, 2009)                                                                                                       
|       |  |                                                                                                                                                                                                                                                                                                                                        
|4.4*   |  | Lease, dated August 19, 2010 by and between Jeffrey Louis Cooper and Hydrogenics (incorporated by reference from Exhibit 4.4 to Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on March 29, 2011)                                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                        





Form 20-FPage 89


Hydrogenics Corporation






|4.5*  |  | Securities Purchase Agreement dated January 11, 2010, among the Company, Iroquois Master Fund Ltd. and Alpha Capital Anstalt (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on January 12, 2010)                                                                                                                                                                                                                                                               
|----- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.6*  |  | Settlement Agreement dated May 21, 2010 between the Company and Alpha Capital Anstalt (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on May 25, 2010)                                                                                                                                                                                                                                                                                                          
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.7*  |  | Settlement Agreement dated May 21, 2010 between the Company and Iroquois Master Fund Ltd. (incorporated by reference from Exhibit 99.4 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on May 25, 2010)                                                                                                                                                                                                                                                                                                      
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.8*  |  | Subscription Agreement, dated August 9, 2010, between CommScope, Inc. of North Carolina and the Company (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on August 10, 2010)+                                                                                                                                                                                                                                                                                    
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.9*  |  | Intellectual Property Licence Agreement, dated August 12, 2010, between CommScope, Inc. of North Carolina and the Company (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on August 12, 2010),+as amended by an amending agreement dated October 25, 2011 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on November 3, 2011)
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.10* |  | Corporate Alliance Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4.27 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 26, 2002)                                                                                                                                                                                                                                                                                                      
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.11* |  | Master Intellectual Property Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4.28 to Old Hydrogenics’ Annual Report on Form 20-F, File No. 000-31815, filed with the Securities and Exchange Commission on June 26, 2002)                                                                                                                                                                                                                                                                                            
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.12* |  | Governance Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 2 to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                           
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.13* |  | Share Subscription Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 1 to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                   
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.14* |  | Escrow Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 4  to the Schedule 13D of General Motors Corporation, File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                              
|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|4.15* |  | Registration Rights Agreement between General Motors Corporation and the Company, dated October 16, 2001 (incorporated by reference from Exhibit 3 to the Schedule 13D of General Motors Corporation ,File No. 005-60857, filed with the Securities and Exchange Commission on October 25, 2001)                                                                                                                                                                                                                                                                                                  





Form 20-FPage 90


Hydrogenics Corporation






|4.16   |  | Loan Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated as of September 28, 2011, including the General Security Agreement attached as exhibit K thereto (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on March 28, 2012)
|------ |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.17*  |  | Amending Agreement No. 1 to the Loan Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated May 28, 2012 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 1, 2012)                                                      
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.18*  |  | Amending Agreement No. 1 to the General Security Agreement between Her Majesty the Queen in Right of the Province of Ontario, as represented by the Minister of Economic Development and Trade and the Company, dated May 28, 2012 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 1, 2012)                                          
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.19*  |  | Subscription Agreement between Enbridge Inc. and the Company, dated April 20, 2012 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on April 30, 2012)                                                                                                                                                                                        
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.20*± |  | Joint Development Agreement between Enbridge Inc. and the Company, dated April 20, 2012 (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on April 30, 2012)                                                                                                                                                                                   
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.21   |  | Definitive agreement between Kolon Water & Energy and the Company to create a joint venture dated  June 23, 2014 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, File No. 000-31815, filed with the Securities and Exchange Commission on June 23, 2014)                                                                                                                                                           
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.22   |  | Exclusive agreement between Alstom Transport and the Company, dated May 27, 2015 (incorporated by reference from Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on May 27, 2015)                                                                                                                                                                                                 
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.23   |  | Loan Agreement between Cinnamon Investments Limited, Bridgecorp Canada, Origin Merchant Principals Fund LP and the Company, dated as of May 6, 2015 (incorporated by reference from Exhibit 99.3 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on May 14, 2015)                                                                                                                              
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.24   |  | Warrant Purchase Agreement between Cinnamon Investments
        Limited, Bridgecorp Canada, Origin Merchant Principals Fund LP and the Company, dated as of May 6, 2015 (incorporated by reference
        from Exhibit 99.2 to the Company’s Report of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities
        and Exchange Commission on May 14, 2015)                                                                                          
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|4.25   |  | Underwriting Agreement between Craig-Hallum Capital Group
        LLC and the Company, dated as of December 11, 2015 (incorporated by reference from Exhibit 99.1 to the Company’s Report of
        Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on December 11, 2015)                                                                                                                                                
|       |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|      

Form 20-FPage 91


Hydrogenics Corporation


|     |  |                                                                                                                                                                                                                                                                                                                              
|---- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|4.26 |  | Loan Agreement between Export Development Canada and the
        Company, dated as of November 4, 2016 (incorporated by reference from Exhibit 99.2 to the Company’s Report of Foreign Private
        Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on November 10, 2016)            
|     |  |                                                                                                                                                                                                                                                                                                                              
|4.27 |  | Warrant Purchase Agreement between Export Development
        Canada and the Company, dated as of November 4, 2016 (incorporated by reference from Exhibit 99.1 to the Company’s Report
        of Foreign Private Issuer on Form 6-K, No. 000-31815, filed with the Securities and Exchange Commission on November 10, 2016)
|     |  |                                                                                                                                                                                                                                                                                                                              
|8.1  |  | List of Significant Subsidiaries                                                                                                                                                                                                                                                                                             
|     |  |                                                                                                                                                                                                                                                                                                                              
|12.1 |  | Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                                                                       
|     |  |                                                                                                                                                                                                                                                                                                                              
|12.2 |  | Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                                                                       
|     |  |                                                                                                                                                                                                                                                                                                                              
|13.1 |  | Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                        
|     |  |                                                                                                                                                                                                                                                                                                                              
|13.2 |  | Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                                        
|     |  |                                                                                                                                                                                                                                                                                                                              
|15.1 |  | Consent of PriceWaterhouseCoopers LLP                                                                                                                                                                                                                                                                                        



*      Previously
filed.



+       Portions of
this exhibit have been omitted pursuant to a request for confidential treatment.





|Form 20-F | Page 92
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