Exhibit 10.1


 





SECURITIES
PURCHASE AGREEMENT


 


This
SECURITIES PURCHASE AGREEMENT (the “Agreement”), is made as of June 5, 2018, by and among Ener-Core,
Inc., a Delaware corporation, with headquarters located at 8965 Research Drive, Suite 100, Irvine, California 92618 (the “Company”),
and the investors listed on the Schedule of Buyers attached hereto (each individually, an “Initial Buyer” and
collectively, the “Initial Buyers”).


 


WHEREAS:


 


A. The
Company and each Initial Buyer is executing and delivering this Agreement in reliance upon the exemption from securities registration
afforded by Section 4(a)(2) of the Securities Act of 1933, as amended (the “1933 Act”), and Rule 506(b) of
Regulation D (“Regulation D”) as promulgated by the United States Securities and Exchange Commission (the
“SEC”) under the 1933 Act.


 


B. The
Company authorized the issuance of senior secured notes of the Company, in substantially the form attached hereto as Exhibit
A (the “Notes”), which Notes are convertible into shares of the Company’s common stock, par value
$0.0001 per share (the “Common Stock” and the shares of Common Stock issuable pursuant to the terms of the
Notes, including, without limitation, upon conversion or otherwise, collectively, the “Conversion Shares”),
in accordance with the terms of the Notes.


 


C. Each
Initial Buyer wishes to purchase, and the Company wishes to sell at the Initial Closing (as defined below), upon the terms and
conditions stated in this Agreement, (i) that aggregate principal amount of Notes set forth opposite such Initial Buyer’s
name in column (3) on the Schedule of Buyers attached hereto (which aggregate principal amount of Notes for all Initial Buyers
shall be $439,444.42) (the “Initial Notes”), and (ii) Warrants, in substantially the form attached hereto as
Exhibit B (the “Warrants”), representing the right to acquire that number of shares of Common Stock
set forth opposite such Initial Buyer’s name in column (4) on the Schedule of Buyers (as exercised, collectively, the “Warrant
Shares”).


 


D. The
Notes will rank pari passu to all of the Company’s outstanding senior debt as of the date of this Agreement, and
senior to all other outstanding and future indebtedness of the Company, and its Subsidiaries (as defined below), will be guaranteed
by all direct and indirect Subsidiaries (as defined in Section 3(a)) of the Company, currently formed or formed in the future,
as evidenced by that certain Second Amendment to Guaranty (the “Guaranty Amendment”), substantially in the
form attached hereto as Exhibit C, which amends that certain Guaranty dated November 23, 2016, (as amended or modified
from time to time in accordance with its terms, the “Guaranty Agreement”), and will be secured by a first priority
perfected security interest (subject to Permitted Liens under and as defined in the Notes) in all of the current and future assets
of the Company and all direct and indirect Subsidiaries of the Company, except for the “Excluded Assets” (as such
term is defined in the Security Agreement), currently formed or formed in the future, as evidenced by that certain Fourth Amendment
to the Pledge and Security Agreement, substantially in the form attached hereto as Exhibit D (as amended or modified from
time to time in accordance with its terms, the “Security Amendment Agreement”), which further amends that certain
Pledge and Security Agreement, dated as of April 23, 2015 by and among the Company and the Collateral Agent attached as Exhibit
10.2 to the Company’s Current Report on Form 8-K filed with the SEC on April 23, 2015 (as amended prior to the date hereof
and by the Fourth Amendment to the Pledge and Security Agreement dated as of the date hereof, and as further amended or modified
from time to time in accordance with its terms, the “Security Agreement” and together with the Guaranty Agreement
and any ancillary documents related thereto, collectively, the “Security Documents”).


 






     

     


    




 


E. The
Notes, Conversion Shares, Warrants and Warrant Shares collectively are referred to herein as the “Securities”,
as applicable.


 


NOW,
THEREFORE, the Company and each Buyer hereby agree as follows:


 


1. PURCHASE
AND SALE OF NOTES AND WARRANTS.


 


(a) Purchase
of Notes and Warrants.


 


(i) Initial
Closing. Upon the satisfaction (or waiver) of the conditions set forth in Sections 6(a) and 7(a) below, the
Company shall issue and sell to each Initial Buyer, and each Initial Buyer severally, but not jointly, agrees to purchase from
the Company on the Initial Closing Date (as defined below), (x) a principal amount of Initial Notes as is set forth opposite such
Initial Buyer’s name in column (3) on the Schedule of Buyers and (y) Warrants to acquire up to that number of Warrant Shares
as is set forth opposite such Initial Buyer’s name in column (4) on the Schedule of Buyers (the “Initial Closing”).


 


(ii) Subsequent
Closings. After the Initial Closing, subject to the satisfaction (or waiver) of the conditions set forth in Sections 1(c),
6(b) and 7(b) below, the Company may issue and sell, on the same terms and conditions set forth in this Agreement,
up to an additional $4,560,555.58 principal amount of Notes (the “Subsequent Notes”) to one or more investors
(each individually, a “Subsequent Buyer”, and collectively, the “Subsequent Buyers” and
together with the Initial Buyers, the “Buyers”) in one or more subsequent closings (each, a “Subsequent
Closing” and together with the Initial Closing, each a “Closing”); provided that each such
sale of Subsequent Notes is consummated no later than 30 days after the Initial Closing Date (as defined below).


 


(b) Initial
Closing Date. The date and time of the Initial Closing (the “Initial Closing Date”) shall be the Trading
Day on which all of the Transaction Documents (as defined below) have been executed and delivered by the applicable parties thereto
in connection with the Initial Closing, upon notification of satisfaction (or waiver) of the conditions to the Initial Closing
set forth in Sections 6(a) and 7(a) below, or at such other time or on such other date as the Company and each Initial
Buyer may mutually agree upon, at the offices of the Company. For purposes of this Agreement, “Trading Day”
means any day on which the Common Stock is traded on the Principal Market (as defined below), or, if the Principal Market is not
the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the
Common Stock is then traded.


 


(c) Subsequent
Closing Dates. The date and time of any Subsequent Closing (each a “Subsequent Closing Date”, and together
with Initial Closing Date, each a “Closing Date” and collectively, the “Closing Dates”)
shall be at such time and on such date as the Company and each Subsequent Buyer may mutually agree upon, subject to satisfaction
(or waiver) of the conditions to the Subsequent Closing set forth in Sections 6(b) and 7(b) and the conditions contained
in Section 1(a)(ii) and this Section 1(c), at the offices of the Company. Any Person approved by the Company may
become a Subsequent Buyer and may purchase Subsequent Notes by duly executing and delivering a Joinder Agreement, substantially
in the form attached hereto as Exhibit E, to the Company. Any Initial Buyer may also purchase, at such Initial Buyer’s
option, Subsequent Notes by delivering a Subsequent Closing Notice, substantially in the form attached hereto as Exhibit F,
to the Company.


 






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(d) Purchase
Price. The aggregate purchase price for the Initial Notes and Warrants purchased by each Initial Buyer at the Initial Closing
(the “Initial Purchase Price”) shall be the amount set forth opposite each Initial Buyer’s name in column
(5) of the Schedule of Buyers. The aggregate purchase price for the Subsequent Notes to be purchased by each Subsequent Buyer
at the applicable Subsequent Closing (the “Subsequent Purchase Price” and together with the Initial Purchase
Price, the “Purchase Price”) shall be the amount set forth on the signature page of such Subsequent Buyer attached
to such Subsequent Buyer’s Joinder Agreement or in the Subsequent Closing Notice, as applicable. Each Initial Buyer shall
pay $900 for each $1,000 of principal amount of Initial Notes and related Warrants to be purchased by such Initial Buyer at the
Initial Closing. The Initial Buyers and the Company agree that the Initial Notes and the Warrants constitute an “investment
unit” for purposes of Section 1273(c)(2) of the Internal Revenue Code of 1986, as amended (the “Code”).
The Initial Buyers and the Company mutually agree that the allocation of the issue price of such investment unit between the Initial
Notes and the Warrants in accordance with Section 1273(c)(2) of the Code and Treasury Regulation Section 1.1273-2(h) shall be
$187 per $1,000 of Initial Purchase Price to be allocated to the Warrants and the balance of each $1,000 of Initial Purchase Price
to be allocated to the Initial Notes, and neither the Initial Buyers nor the Company shall take any position inconsistent with
such allocation in any tax return or in any judicial or administrative proceeding in respect of taxes.


 


(e) Form
of Payment.


 


(i) Initial
Closing. On the Initial Closing Date, (i) each Initial Buyer shall pay its Initial Purchase Price to the Company for the Initial
Note and Warrant to be issued and sold to such Initial Buyer at the Initial Closing by wire transfer of immediately available
funds in accordance with the Company’s written wire instructions and (ii) the Company shall deliver the Initial Note
(allocated in the principal amount requested by such Initial Buyer) and Warrant which such Initial Buyer is purchasing hereunder,
in each case duly executed on behalf of the Company and registered in the name of such Initial Buyer or its designee.


 


(ii) Subsequent
Closings. On any Subsequent Closing Date, (i) each Subsequent Buyer shall pay its Subsequent Purchase Price to the Company
for the Subsequent Notes to be issued and sold to such Subsequent Buyer at the applicable Subsequent Closing by wire transfer
of immediately available funds in accordance with the Company’s written wire instructions and (ii) the Company shall deliver
to each Subsequent Buyer the Subsequent Notes which such Subsequent Buyer is then purchasing hereunder, in each case duly executed
on behalf of the Company and registered in the name of such Subsequent Buyer or its designee.


 


2. BUYER’S
REPRESENTATIONS AND WARRANTIES. Each Buyer, severally and not jointly, represents and warrants with respect to only itself
that:


 


(a) No
Public Sale or Distribution. Such Buyer is acquiring the Securities for its own account and not with a view towards, or for
resale in connection with, the public sale or distribution thereof, except pursuant to sales registered or exempted under the
1933 Act; provided, however, that by making the representations herein, such Buyer does not agree to hold any of
the Securities for any minimum or other specific term and reserves the right to dispose of the Securities at any time in accordance
with or pursuant to a registration statement or an exemption under the 1933 Act. Such Buyer is acquiring the Securities hereunder
in the ordinary course of its business. Such Buyer does not presently have any agreement or understanding, directly or indirectly,
with any Person (as defined below) to distribute any of the Securities. For purposes of this Agreement, “Person”
means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization
and a government or any department or agency thereof.


 






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(b) Accredited
Investor Status. Such Buyer is an “accredited investor” as that term is defined in Rule 501(a) of Regulation D.
Such Buyer has executed and delivered to the Company a questionnaire (the “Investor Questionnaire”), substantially
in the form attached hereto as Exhibit G, which such Buyer represents and warrants is true, correct and complete.


 


(c) Reliance
on Exemptions. Such Buyer understands that the Securities are being offered and sold to it in reliance on specific exemptions
from the registration requirements of United States federal and state securities laws and that the Company is relying in part
upon the truth and accuracy of, and such Buyer’s compliance with, the representations, warranties, agreements, acknowledgments
and understandings of such Buyer set forth herein in order to determine the availability of such exemptions and the eligibility
of such Buyer to acquire the Securities.


 


(d)Information.
Such Buyer and its advisors, if any, have been furnished with all materials relating to the business, finances and operations
of the Company, including but not limited to the Company’s filings under the Securities Exchange Act of 1934, as amended
(the “1934 Act”), and materials relating to the offer and sale of the Securities that have been requested by
such Buyer. Such Buyer and its advisors, if any, have been afforded the opportunity to ask questions of the Company. Neither such
inquiries nor any other due diligence investigations conducted by such Buyer or its advisors, if any, or its representatives shall
modify, amend or affect such Buyer’s right to rely on the Company’s representations and warranties contained herein.
Such Buyer understands that its investment in the Securities involves a high degree of risk and is able to afford a complete loss
of such investment. Such Buyer has sought such accounting, legal and tax advice as it has considered necessary to make an informed
investment decision with respect to its acquisition of the Securities. Such Buyer confirms and agrees that (i) it has independently
evaluated the investment risks and the merits of its decision to purchase the Securities, (ii) it has not relied on the advice
of, or any representations by, any other Person, other than the Company and its officers and directors, in making such decision,
and (iii) no Person, other than the Company and its officers and directors, has any responsibility with respect to the completeness
or accuracy of any information or materials furnished to such Buyer in connection with the transactions contemplated hereby.


 


(e)No
Governmental Review. Such Buyer understands that no United States federal or state agency or any other government or governmental
agency has passed on or made any recommendation or endorsement of the Securities or the fairness or suitability of the investment
in the Securities nor have such authorities passed upon or endorsed the merits of the offering of the Securities.


 


(f)Transfer
or Resale. Such Buyer understands that, except as provided in the Registration Rights Covenant (as defined below): (i) the
Securities have not been and are not being registered under the 1933 Act or any state securities laws, and may not be offered
for sale, sold, assigned or transferred unless (A) subsequently registered thereunder, (B) such Buyer shall have delivered to
the Company an opinion of counsel, in form and substance reasonably acceptable to the Company, to the effect that such Securities
to be sold, assigned or transferred may be sold, assigned or transferred pursuant to an exemption from such registration, or (C)
such Buyer provides the Company with reasonable assurance that such Securities can be sold, assigned or transferred pursuant to
Rule 144 promulgated under the 1933 Act (“Rule 144”) or Rule 144A promulgated under the 1933 Act, as amended
(or successor rules thereto) (collectively, “Resale Exemptions”); (ii) any sale of the Securities made in reliance
on the Resale Exemptions may be made only in accordance with the terms of Rule 144 or Rule 144A, as applicable, and further, if
a Resale Exemption is not applicable, any resale of the Securities under circumstances in which the seller (or the Person) through
whom the sale is made) may be deemed to be an underwriter (as that term is defined in the 1933 Act) may require compliance with
some other exemption under the 1933 Act or the rules and regulations of the SEC thereunder; and (iii) neither the Company nor
any other Person is under any obligation to register the Securities under the 1933 Act or any state securities laws or to comply
with the terms and conditions of any exemption thereunder. Notwithstanding the foregoing, the Securities may be pledged in connection
with a bona fide margin account or other loan or financing arrangement secured by the Securities and such pledge of Securities
shall not be deemed to be a transfer, sale or assignment of the Securities hereunder, and no Buyer effecting a pledge of Securities
shall be required to provide the Company with any notice thereof or otherwise make any delivery to the Company pursuant to this
Agreement or any other Transaction Document (as defined below), including, without limitation, this Section 2(f).


 






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(g)Legends.
Such Buyer understands that the certificates or other instruments representing the Notes and Warrants, and any certificates representing
the Conversion Shares and Warrant Shares, except as set forth below, shall bear any legend as required by the “blue sky”
laws of any state and a restrictive legend in substantially the following form (and a stop-transfer order may be placed against
transfer of such stock certificates or other instruments):


 


[NEITHER
THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES [MAY BE
CONVERTIBLE][ARE EXERCISABLE] HAVE BEEN][THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR
ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR (B) AN OPINION OF COUNSEL, IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED
UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES
MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.


 


The
legend set forth above shall be removed and the Company shall issue a certificate or other instrument without such legend to the
holder of the Securities upon which it is stamped or issue to such holder by electronic delivery at the applicable balance account
at The Depository Trust Company (“DTC”), if, unless otherwise required by state securities laws, (i) such Securities
are registered for resale under the 1933 Act, (ii) in connection with a sale, assignment or other transfer, such holder provides
the Company with an opinion of counsel, in form and substance reasonably acceptable to the Company, to the effect that such sale,
assignment or transfer of the Securities may be made without registration under the applicable requirements of the 1933 Act, or
(iii) the Securities can be sold, assigned or transferred pursuant to Rule 144 or Rule 144A. The Company shall be responsible
for the fees of its transfer agent and all DTC fees associated with such issuance.


 


(h)Validity;
Enforcement. This Agreement has been duly and validly authorized, executed and delivered on behalf of such Buyer and shall
constitute the legal, valid and binding obligations of such Buyer enforceable against such Buyer in accordance with their respective
terms, except as such enforceability may be limited by general principles of equity or to applicable bankruptcy, insolvency, reorganization,
moratorium, liquidation and other similar laws relating to, or affecting generally, the enforcement of applicable creditors’
rights and remedies.


 






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(i)No
Conflicts. The execution, delivery and performance by such Buyer of this Agreement and the consummation by such Buyer of the
transactions contemplated hereby and thereby will not (i) result in a violation of the organizational documents of such Buyer
or (ii) conflict with, or constitute a default (or an event which with notice or lapse of time or both would become a default)
under, or give to others any rights of termination, amendment, acceleration or cancellation of, any agreement, indenture or instrument
to which such Buyer is a party, or (iii) result in a violation of any law, rule, regulation, order, judgment or decree (including
federal and state securities laws) applicable to such Buyer, except in the case of clauses (ii) and (iii) above, for such conflicts,
defaults, rights or violations which would not, individually or in the aggregate, reasonably be expected to have a material adverse
effect on the ability of such Buyer to perform its obligations hereunder.


 


(j)No
General Solicitation and Advertising; Prior Relationship. Such Buyer represents and acknowledges, to its knowledge, that it
has not been solicited to offer to purchase or to purchase any Securities by means of any general solicitation or advertising
within the meaning of Regulation D. The Buyer represents that its interest in the purchase of the Securities is the result of
its substantive, pre-existing relationship with the Company.


 


(k)Rule
506(d) Representation. Such Buyer represents that it is not a person of the type described in Section 506(d) of Regulation
D that would disqualify the Company from engaging in a transaction pursuant to Section 506 of Regulation D.


 


(l)Residency.
Such Buyer is a resident of that jurisdiction specified below its address on the Schedule of Buyers.


 


3. REPRESENTATIONS
AND WARRANTIES OF THE COMPANY. The Company represents and warrants to each of the Buyers, as of the date hereof and as of
each applicable Closing Date (unless otherwise provided herein), that:


 


(a)Organization
and Qualification. Each of the Company and its “Subsidiaries” (which for purposes of this Agreement means
any entity in which the Company, directly or indirectly, owns any of the capital stock or holds an equity or similar interest)
are entities duly organized and validly existing in good standing under the laws of the jurisdiction in which they are formed,
and have the requisite power and authorization to own their properties and to carry on their business as now being conducted.
Each of the Company and its Subsidiaries is duly qualified as a foreign entity to do business and is in good standing in every
jurisdiction in which its ownership of property or the nature of the business conducted by it makes such qualification necessary,
except to the extent that the failure to be so qualified or be in good standing would not reasonably be expected to have a Material
Adverse Effect. As used in this Agreement, “Material Adverse Effect” means any material adverse effect on the
business, properties, assets, operations, results of operations, condition (financial or otherwise) or prospects of the Company
and its Subsidiaries, taken as a whole, or on the transactions contemplated hereby or on the other Transaction Documents or by
the agreements and instruments to be entered into in connection herewith or therewith, or on the authority or ability of the Company
to perform its obligations under the Transaction Documents. The Company has no Subsidiaries except as set forth on Schedule
3(a).


 






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(b)Authorization;
Enforcement; Validity. The Company has the requisite power and authority to enter into and perform its obligations under this
Agreement, the Notes, the Warrants, the Irrevocable Transfer Agent Instructions (as defined below), any Joinder Agreements, any
Subsequent Closing Notices and each of the other agreements entered into by the parties hereto in connection with the transactions
contemplated by this Agreement (collectively, the “Transaction Documents”) and to issue the Securities in accordance
with the terms hereof and thereof. The execution and delivery of the Transaction Documents by the Company and the consummation
by the Company of the transactions contemplated hereby and thereby, including, without limitation, the issuance of the Notes,
the issuance of the Warrants and the reservation for issuance and the issuance of the Conversion Shares and Warrant Shares, have
been duly authorized by the Company’s Board of Directors, and (other than the filing with the SEC of a Form D and any other
filings as may be required by state securities agencies) no further filing, consent, or authorization is required by the Company,
its Board of Directors or its stockholders. This Agreement and the other Transaction Documents have been duly executed and delivered
by the Company, and constitute the legal, valid and binding obligations of the Company, enforceable against the Company in accordance
with their respective terms, except as such enforceability may be limited by general principles of equity or applicable bankruptcy,
insolvency, reorganization, moratorium, liquidation or similar laws relating to, or affecting generally, the enforcement of applicable
creditors’ rights and remedies. Each of the Subsidiaries party to any of the Transaction Documents has the requisite power
and authority to enter into and perform its obligations under such Transaction Documents., as applicable. The execution and delivery
by the Subsidiaries party to any of the Transaction Documents of such Transaction Documents and the consummation by such Subsidiaries
of the transactions contemplated thereby have been duly authorized by such Subsidiaries’ respective boards of directors
(or other applicable governing body) and (other than filings as may be required by state securities agencies) no further filing,
consent, or authorization is required by such Subsidiaries, their respective boards of directors (or other applicable governing
body) or stockholders (or other applicable owners of equity of such Subsidiaries). The Transaction Documents to which any of the
Subsidiaries are parties have been duly executed and delivered by such Subsidiaries, and constitute the legal, valid and binding
obligations of such Subsidiaries, enforceable against them in accordance with their respective terms, except as such enforceability
may be limited by general principles of equity or applicable bankruptcy, insolvency, reorganization, moratorium, liquidation or
similar laws relating to, or affecting generally, the enforcement of applicable creditors’ rights and remedies.


 


(c)Issuance
of Securities. The issuance of the Notes and the Warrants is duly authorized and, upon issuance, the Notes and the Warrants
shall be validly issued and free from all taxes, liens and charges with respect to the issue thereof. As of the applicable Closing,
a number of shares of Common Stock shall have been duly authorized and reserved for issuance which equals or exceeds (the “Required
Reserved Amount) the sum of (i) the maximum number of Conversion Shares issued and issuable pursuant to the Notes to be issued
in such Closing based on the initial Conversion Price (as defined in the Notes) of $0.25 (as adjusted for any stock dividend,
stock split, stock combination, reclassification or similar transaction occurring after the date hereof and without taking into
account any limitations on the issuance thereof pursuant to the terms of the Notes) (the “Initial Conversion Price”)
plus (ii) the maximum number of Warrant Shares issued and issuable pursuant to the Warrants to be issued in the Initial Closing,
each as of the Trading Day (as defined in the Warrants) immediately preceding the applicable date of determination (without taking
into account any limitations on the exercise of the Warrants set forth in the Warrants). As of the date hereof, there are 195,893,607
shares of Common Stock authorized and unissued, of which 61,169,712 are reserved for issuance upon full exercise of all outstanding
options and warrants and upon conversion of all convertible promissory notes. Upon conversion of the Notes in accordance with
the Notes or exercise of the Warrants in accordance with the Warrants, as the case may be, the Conversion Shares and the Warrant
Shares, respectively, will be validly issued, fully paid and nonassessable and free from all preemptive or similar rights, taxes,
liens and charges with respect to the issue thereof, with the holders being entitled to all rights accorded to a holder of Common
Stock. Assuming the accuracy of each of the representations and warranties set forth in Section 2 of this Agreement, the
offer and issuance by the Company of the Securities is exempt from registration under the 1933 Act.


 






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(d)No
Conflicts. The execution, delivery and performance of the Transaction Documents by the Company and any of its Subsidiaries
party to any of the Transaction Documents and the consummation by the Company and any of its Subsidiaries, as applicable, of the
transactions contemplated hereby and thereby (including, without limitation, the issuance of the Notes and the Warrants and reservation
for issuance and issuance of the Conversion Shares and the Warrant Shares) will not (i) result in a violation of the Certificate
of Incorporation (as defined below) or Bylaws (as defined below), any memorandum of association, certificate of incorporation,
certificate of formation, bylaws, any certificate of designations or other constituent documents of the Company or any of its
Subsidiaries, any capital stock of the Company or any of its Subsidiaries or the articles of association or bylaws of the Company
or any of its Subsidiaries or (ii) conflict with, or constitute a default (or an event which with notice or lapse of time or both
would become a default) in any respect under, or give to others any rights of termination, amendment, acceleration or cancellation
of, any material agreement, indenture or instrument to which the Company or any of its Subsidiaries is a party, or (iii) result
in a violation of any law, rule, regulation, order, judgment or decree (including other foreign, federal and state securities
laws and regulations and the rules and regulations of the OTCQB (the “Principal Market”) and including all
applicable laws of the State of Delaware and any foreign, federal and state laws, rules and regulations) applicable to the Company
or any of its Subsidiaries or by which any property or asset of the Company or any of its Subsidiaries is bound or affected.


 


(e)Consents.
Neither the Company nor any of its Subsidiaries is required to obtain any consent, authorization or order of, or make any filing
or registration with (other than the filing with the SEC of a Form D and any other filings as may be required by any state securities
agencies), any court, governmental agency or any regulatory or self-regulatory agency or any other Person in order for it to execute,
deliver or perform any of its obligations under or contemplated by the Transaction Documents, in each case in accordance with
the terms hereof or thereof. All consents, authorizations, orders, filings and registrations which the Company or any of its Subsidiaries
is required to obtain pursuant to the preceding sentence have been obtained or effected on or prior to the Initial Closing Date,
and the Company and its Subsidiaries are unaware of any facts or circumstances that might prevent the Company or any of its Subsidiaries
from obtaining or effecting any of the registration, application or filings pursuant to the preceding sentence, other than the
filings or registration required by Sections 4(b), 4(f) and 4(j) of this Agreement. The Company is not in
violation of the requirements of the Principal Market and has no knowledge of any facts that would reasonably lead to delisting
or suspension of the Common Stock in the foreseeable future. The issuance by the Company of the Securities shall not have the
effect of delisting or suspending the Common Stock from the Principal Market.


 


(f)Acknowledgment
Regarding Buyer’s Purchase of Securities. The Company acknowledges and agrees that each Buyer is acting solely in the
capacity of an arm’s length purchaser with respect to the Transaction Documents and the transactions contemplated hereby
and thereby and that, except as set forth in any Schedule 13D or Schedule 13G filed with the SEC regarding the ownership of 10%
or more of the shares of Common Stock or as disclosed in Schedule 3(f), no Buyer is (i) an officer or director of the Company
or any of its Subsidiaries, (ii) an “affiliate” of the Company or any of its Subsidiaries (as defined in Rule 144)
or (iii) to the knowledge of the Company, a “beneficial owner” of more than 10% of the shares of Common Stock (as
defined for purposes of Rule 13d-3 of the 1934 Act). The Company further acknowledges that no Buyer is acting as a financial advisor
or fiduciary of the Company or any of its Subsidiaries (or in any similar capacity) with respect to the Transaction Documents
and the transactions contemplated hereby and thereby, and any advice given by a Buyer or any of its representatives or agents
in connection with the Transaction Documents and the transactions contemplated hereby and thereby is merely incidental to such
Buyer’s purchase of the Securities. The Company further represents to each Buyer that the Company’s decision to enter
into the Transaction Documents has been based solely on the independent evaluation by the Company and its representatives.


 






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(g)No
General Solicitation; Fees and Commissions. Neither the Company, nor any of its Subsidiaries or affiliates, nor any Person
acting on its or their behalf, has engaged in any form of general solicitation or general advertising (within the meaning of Regulation
D) in connection with the offer or sale of the Securities. The Company shall be responsible for the payment of any placement agent’s
fees, financial advisory fees, or brokers’ commissions (other than for persons engaged by any Buyer or its investment advisor)
relating to or arising out of the transactions contemplated hereby, including, without limitation, any fees payable to J Streicher
Capital, LLC (the “J Streicher”) in connection with the sale of the Securities. The Company shall pay, and
hold each Buyer harmless against, any liability, loss or expense (including, without limitation, attorney’s fees and out-of-pocket
expenses) arising in connection with any such claim. The Company acknowledges that it has engaged J Streicher in connection with
the sale of the Securities. Other than J Streicher, neither the Company nor any of its Subsidiaries has engaged any placement
agent or other agent in connection with the sale of the Securities.


 


(h)No
Integrated Offering. None of the Company, its Subsidiaries, any of their affiliates, and any Person acting on their behalf
has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances
that would require registration of any of the Securities under the 1933 Act, whether through integration with prior offerings
or otherwise, or cause this offering of the Securities to require approval of stockholders of the Company for purposes of the
1933 Act or any applicable stockholder approval provisions, including, without limitation, under the rules and regulations of
any exchange or automated quotation system on which any of the securities of the Company are listed or designated. None of the
Company, its Subsidiaries, their affiliates and any Person acting on their behalf will take any action or steps referred to in
the preceding sentence that would require registration of any of the Securities under the 1933 Act or cause the offering of the
Securities to be integrated with other offerings for purposes of any such applicable stockholder approval provisions.


 


(i)Application
of Takeover Protections; Rights Agreement. The Company and its board of directors have taken all necessary action, if any,
in order to render inapplicable any control share acquisition, business combination, poison pill (including any distribution under
a rights agreement) or other similar anti-takeover provision under the Certificate of Incorporation or the laws of the jurisdiction
of its formation which is or could become applicable to any Buyer as a result of the transactions contemplated by this Agreement,
including, without limitation, the Company’s issuance of the Securities and any Buyer’s ownership of the Securities.
The Company has not adopted a stockholder rights plan or similar arrangement relating to accumulations of beneficial ownership
of Common Stock or a change in control of the Company.


 






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(j)SEC
Documents; Financial Statements. Except as disclosed in Schedule 3(j), during the two (2) years prior to the date hereof,
the Company has timely filed all reports, schedules, forms, statements and other documents required to be filed by it with the
SEC pursuant to the reporting requirements of the 1934 Act (all of the foregoing filed prior to the date hereof, and all exhibits
included therein and financial statements, notes and schedules thereto and documents incorporated by reference therein being hereinafter
referred to as the “SEC Documents”). The Company has delivered to the Buyers or their respective representatives
true, correct and complete copies of the SEC Documents not available on the EDGAR system. As of their respective filing dates,
the SEC Documents complied in all material respects with the requirements of the 1934 Act and the rules and regulations of the
SEC promulgated thereunder applicable to the SEC Documents, and none of the SEC Documents, at the time they were filed with the
SEC, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary
in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. As of their
respective filing dates, the financial statements of the Company included in the SEC Documents complied as to form in all material
respects with applicable accounting requirements and the published rules and regulations of the SEC with respect thereto. Such
financial statements have been prepared in accordance with generally accepted accounting principles, consistently applied, during
the periods involved (“GAAP”) (except (i) as may be otherwise indicated in such financial statements or the
notes thereto, or (ii) in the case of unaudited interim statements, to the extent they may exclude footnotes or may be condensed
or summary statements) and fairly present in all material respects the financial position of the Company as of the dates thereof
and the results of its operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to
normal year-end audit adjustments). No other information provided by or on behalf of the Company to the Buyers which is not included
in the SEC Documents, including, without limitation, information referred to in Section 2(d) of this Agreement or in the
disclosure schedules to this Agreement, contains any untrue statement of a material fact or omits to state any material fact necessary
in order to make the statements therein, in the light of the circumstance under which they are or were made, not misleading.


 


(k)Absence
of Certain Changes. Except as disclosed in Schedule 3(k), since December 31, 2017, there has been no event that would
reasonably be expected to result in a Material Adverse Effect. Except as disclosed in Schedule 3(k), since December 31,
2017, neither the Company nor any of its Subsidiaries has (i) declared or paid any dividends, (ii) sold any assets, individually
or in the aggregate, in excess of $100,000 outside of the ordinary course of business or (iii) had capital expenditures, individually
or in the aggregate, in excess of $100,000. Neither the Company nor any of its Subsidiaries has taken any steps to seek protection
pursuant to any bankruptcy law nor does the Company have any knowledge or reason to believe that its creditors intend to initiate
involuntary bankruptcy proceedings or any actual knowledge of any fact that would reasonably lead a creditor to do so.


 


(l)No
Undisclosed Events, Liabilities, Developments or Circumstances. No event, liability, development or circumstance has occurred
or exists, or is contemplated to occur with respect to the Company, its Subsidiaries or their respective business, properties,
prospects, operations or financial condition, that would be required to be disclosed by the Company under applicable securities
laws on a registration statement on Form S-1 filed with the SEC relating to an issuance and sale by the Company of its Common
Stock and which has not been publicly announced.


 


(m)Conduct
of Business; Regulatory Permits. Neither the Company nor any of its Subsidiaries is in violation of any term of or in default
under any certificate of designations of any outstanding series of preferred stock of the Company (if any), its Certificate of
Incorporation or Bylaws or their organizational charter or memorandum of association or certificate of incorporation or articles
of association or bylaws, respectively. Neither the Company nor any of its Subsidiaries is in violation of any judgment, decree
or order or any statute, ordinance, rule or regulation applicable to the Company or any of its Subsidiaries, and neither the Company
nor any of its Subsidiaries will conduct its business in violation of any of the foregoing, except for possible violations which
could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. Without limiting the generality
of the foregoing, the Company is not in violation of any of the rules, regulations or requirements of the Principal Market and
has no knowledge of any facts or circumstances that would reasonably lead to delisting or suspension of the Common Stock by the
Principal Market in the foreseeable future. Except as set forth in Schedule 3(m), during the two (2) years prior to the
date hereof, the Common Stock has been designated for quotation on the Principal Market. Except as set forth in Schedule 3(m),
during the two (2) years prior to the date hereof, (i) trading in the Common Stock has not been suspended by the SEC or the Principal
Market and (ii) the Company has received no communication, written or oral, from the SEC or the Principal Market regarding the
suspension of the Common Stock from the Principal Market. The Company and its Subsidiaries possess all certificates, authorizations
and permits issued by the appropriate federal, state or foreign regulatory authorities necessary to conduct their respective businesses,
except where the failure to possess such certificates, authorizations or permits would not have, individually or in the aggregate,
a Material Adverse Effect, and neither the Company nor any such Subsidiary has received any notice of proceedings relating to
the revocation or modification of any such certificate, authorization or permit.


 






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(n)Foreign
Corrupt Practices. Neither the Company, nor any of its Subsidiaries, nor any director, officer, agent, employee or other Person
acting on behalf of the Company or any of its Subsidiaries has, in the course of its actions for, or on behalf of, the Company
or any of its Subsidiaries (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expenses
relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official
or employee from corporate funds; (iii) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act
of 1977, as amended; or (iv) made any unlawful bribe, rebate, payoff, influence payment, kickback or other unlawful payment to
any foreign or domestic government official or employee.


 


(o)Sarbanes-Oxley
Act. Except as disclosed in Schedule 3(o), the Company is in material compliance with any and all applicable requirements
of the Sarbanes-Oxley Act of 2002, as amended, that are effective as of the date hereof, and any and all applicable rules and
regulations promulgated by the SEC thereunder that are effective as of the date hereof.


 


(p)
Transactions With Affiliates. Except as set forth in Schedule 3(p), none of the officers, directors or employees
of the Company or any of its Subsidiaries is presently a party to any transaction with the Company or any of its Subsidiaries
(other than for ordinary course services as employees, officers or directors), including any contract, agreement or other arrangement
providing for the furnishing of services to or by, providing for rental of real or personal property to or from, or otherwise
requiring payments to or from any such officer, director or employee or, to the knowledge of the Company or any of its Subsidiaries,
any corporation, partnership, trust or other entity in which any such officer, director, or employee has a substantial interest
or is an officer, director, trustee or partner.


 


(q)Equity
Capitalization. As of the Initial Closing Date, the authorized capital stock of the Company consists of (i) 200,000,000 shares
of Common Stock, of which as of the date hereof, 4,106,393 shares are issued and outstanding, 709,876 shares are reserved for
issuance pursuant to the Company’s stock option and purchase plans, 6,084,600 shares are reserved for issuance upon exercise
of warrants outstanding and 5,130,179 shares are reserved for issuance pursuant to securities (other than the aforementioned options,
warrants and the Notes and Warrants) exercisable or exchangeable for, or convertible into, Common Stock, (ii) 50,000,000 shares
of preferred stock, par value $0.0001 per share, none of which are issued and outstanding as of the date hereof and (iii) there
are 2,776,367 shares of Common Stock held by non-affiliates of the Company. All of such outstanding shares have been, or upon
issuance will be, validly issued and are fully paid and nonassessable. Except as set forth in the SEC Documents or as disclosed
in Schedule 3(q), (i) none of the Company’s capital stock is subject to preemptive rights or any other similar rights
or any liens or encumbrances suffered or permitted by the Company; (ii) there are no outstanding options, warrants, scrip, rights
to subscribe to, calls or commitments of any character whatsoever relating to, or securities or rights convertible into, or exercisable
or exchangeable for, any shares of capital stock of the Company or any of its Subsidiaries, or contracts, commitments, understandings
or arrangements by which the Company or any of its Subsidiaries is or may become bound to issue additional shares of capital stock
of the Company or any of its Subsidiaries or options, warrants, scrip, rights to subscribe to, calls or commitments of any character
whatsoever relating to, or securities or rights convertible into, or exercisable or exchangeable for, any shares of capital stock
of the Company or any of its Subsidiaries; (iii) there are no outstanding debt securities, notes, credit agreements, credit facilities
or other agreements, documents or instruments evidencing Indebtedness (as defined below) of the Company or any of its Subsidiaries
or by which the Company or any of its Subsidiaries is or may become bound; (iv) there are no financing statements securing obligations
in any material amounts, either singly or in the aggregate, filed in connection with the Company or any of its Subsidiaries; (v)
other than pursuant to the Registration Rights Covenant (as defined below), there are no agreements or arrangements under which
the Company or any of its Subsidiaries is obligated to register the sale of any of their securities under the 1933 Act; (vi) there
are no outstanding securities or instruments of the Company or any of its Subsidiaries which contain any redemption or similar
provisions, and there are no contracts, commitments, understandings or arrangements by which the Company or any of its Subsidiaries
is or may become bound to redeem a security of the Company or any of its Subsidiaries; (vii) there are no securities or instruments
containing anti-dilution or similar provisions that will be triggered by the issuance of the Securities; (viii) the Company does
not have any stock appreciation rights or “phantom stock” plans or agreements or any similar plan or agreement; and
(ix) the Company and its Subsidiaries have no liabilities or obligations required to be disclosed in the SEC Documents but not
so disclosed in the SEC Documents, other than those incurred in the ordinary course of the Company’s or any of its Subsidiaries’
respective businesses and which, individually or in the aggregate, do not or would not have a Material Adverse Effect. The Company
has furnished or made available to the Buyers true, correct and complete copies of the Company’s Certificate of Incorporation,
as amended and as in effect on the date hereof (the “Certificate of Incorporation”), and the Company’s
Bylaws, as amended and as in effect on the date hereof (the “Bylaws”), and the terms of all securities convertible
into, or exercisable or exchangeable for shares of Common Stock and the material rights of the holders thereof in respect thereto.


 






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(r)Indebtedness
and Other Contracts. Except as disclosed on Schedule 3(r), neither the Company nor any of its Subsidiaries (i) has
any outstanding Indebtedness (as defined below), (ii) is a party to any contract, agreement or instrument, the violation of which,
or default under which, by the other party(ies) to such contract, agreement or instrument could reasonably be expected to result
in a Material Adverse Effect, (iii) is in violation of any term of or in default under any contract, agreement or instrument relating
to any Indebtedness, except where such violations and defaults would not result, individually or in the aggregate, in a Material
Adverse Effect, or (iv) is a party to any contract, agreement or instrument relating to any Indebtedness, the performance of which,
in the judgment of the Company’s officers, has or is expected to have a Material Adverse Effect. Schedule 3(r) provides
a detailed description of the material terms of any such outstanding Indebtedness. For purposes of this Agreement: (x) “Indebtedness”
of any Person means, without duplication (A) all indebtedness for borrowed money, (B) all obligations issued, undertaken or assumed
as the deferred purchase price of property or services, including, without limitation, “capital leases” in accordance
with GAAP (other than trade payables entered into in the ordinary course of business consistent with past practice), (C) all reimbursement
or payment obligations with respect to letters of credit, surety bonds and other similar instruments, (D) all obligations evidenced
by notes, bonds, debentures or similar instruments, including obligations so evidenced incurred in connection with the acquisition
of property, assets or businesses, (E) all indebtedness created or arising under any conditional sale or other title retention
agreement, or incurred as financing, in either case with respect to any property or assets acquired with the proceeds of such
indebtedness (even though the rights and remedies of the seller or bank under such agreement in the event of default are limited
to repossession or sale of such property), (F) all monetary obligations under any leasing or similar arrangement which, in connection
with GAAP, consistently applied for the periods covered thereby, is classified as a capital lease, (G) all indebtedness referred
to in clauses (A) through (F) above secured by (or for which the holder of such Indebtedness has an existing right, contingent
or otherwise, to be secured by) any mortgage, lien, pledge, charge, security interest or other encumbrance upon or in any property
or assets (including accounts and contract rights) owned by any Person, even though the Person which owns such assets or property
has not assumed or become liable for the payment of such indebtedness, and (H) all Contingent Obligations in respect of indebtedness
or obligations of others of the kinds referred to in clauses (A) through (G) above; and (y) “Contingent Obligation”
means, as to any Person, any direct or indirect liability, contingent or otherwise, of that Person with respect to any Indebtedness,
lease, dividend or other obligation of another Person if the primary purpose or intent of the Person incurring such liability,
or the primary effect thereof, is to provide assurance to the obligee of such liability that such liability will be paid or discharged,
or that any agreements relating thereto will be complied with, or that the holders of such liability will be protected (in whole
or in part) against loss with respect thereto.


 


(s)Absence
of Litigation. There is no action, suit, proceeding, inquiry or investigation before or by the Principal Market, any court,
public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company, threatened
against or affecting the Company or any of its Subsidiaries, the Common Stock or any of the Company’s Subsidiaries or any
of the Company’s or its Subsidiaries’ officers or directors, whether of a civil or criminal nature or otherwise, in
their capacities as such, except as set forth in Schedule 3(s). The matters set forth in Schedule 3(s) would not
reasonably be expected to have a Material Adverse Effect.


 


(t)Insurance.
The Company and each of its Subsidiaries are insured by insurers of recognized financial responsibility against such losses and
risks and in such amounts as management of the Company believes to be prudent and customary in the businesses in which the Company
and its Subsidiaries are engaged. Neither the Company nor any such Subsidiary has been refused any insurance coverage sought or
applied for and neither the Company nor any such Subsidiary has any reason to believe that it will not be able to renew its existing
insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to
continue its business at a cost that would not have a Material Adverse Effect.


 


(u)Employee
Relations.


 


(i)Neither
the Company nor any of its Subsidiaries is a party to any collective bargaining agreement or employs any member of a union. The
Company and its Subsidiaries believe that their relations with their employees are good. No executive officer (as defined in Rule
501(f) under the 1933 Act) of the Company or any of its Subsidiaries has notified the Company or any such Subsidiary that such
officer intends to leave the Company or any such Subsidiary or otherwise terminate such officer’s employment with the Company
or any such Subsidiary. No executive officer of the Company or any of its Subsidiaries, to the knowledge of the Company or any
of its Subsidiaries, is, or is now expected to be, in violation of any material term of any employment contract, confidentiality,
disclosure or proprietary information agreement, non-competition agreement, or any other contract or agreement or any restrictive
covenant, and the continued employment of each such executive officer does not subject the Company or any of its Subsidiaries
to any liability with respect to any of the foregoing matters.


 


(ii)The
Company and its Subsidiaries are in compliance with all federal, state, local and foreign laws and regulations respecting labor,
employment and employment practices and benefits, terms and conditions of employment and wages and hours, except where failure
to be in compliance would not, either individually or in the aggregate, reasonably be expected to result in a Material Adverse
Effect.


 






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(v)Title.
The Company and its Subsidiaries have good and marketable title in fee simple to all real property and good and marketable title
to all personal property owned by them which is material to the business of the Company and its Subsidiaries, in each case free
and clear of all liens, encumbrances and defects except for Permitted Liens which do not materially affect the value of such property
and do not interfere with the use made and proposed to be made of such property by the Company and any of its Subsidiaries. Any
real property and facilities held under lease by the Company and any of its Subsidiaries are held by them under valid, subsisting
and enforceable leases with such exceptions as are not material and do not materially interfere with the use made and proposed
to be made of such property and buildings by the Company and its Subsidiaries.


 


(w)Intellectual
Property Rights. The Company and its Subsidiaries own or possess adequate rights or licenses to use all trademarks, trade
names, service marks, service mark registrations, service names, original works of authorship, patents, patent rights, copyrights,
inventions, licenses, approvals, governmental authorizations, trade secrets and other intellectual property rights and all applications
and registrations therefor (“Intellectual Property Rights”) necessary to conduct their respective businesses
as now conducted. None of the Company’s Intellectual Property Rights have expired or terminated or have been abandoned or
are expected to expire or terminate or are expected to be abandoned, within three years from the date of this Agreement. The Company
does not have any knowledge of any infringement by the Company or its Subsidiaries of Intellectual Property Rights of others.
There is no claim, action or proceeding being made or brought, or to the knowledge of the Company or any of its Subsidiaries,
being threatened, against the Company or any of its Subsidiaries regarding its Intellectual Property Rights. Neither the Company
nor any of its Subsidiaries is aware of any facts or circumstances that might give rise to any of the foregoing infringements
or claims, actions or proceedings. The Company and its Subsidiaries have taken reasonable security measures to protect the secrecy,
confidentiality and value of all of their Intellectual Property Rights.


 


(x)Environmental
Laws. Except as would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect: (i)
neither the Company nor its Subsidiaries is in violation of any Environmental Laws (as hereinafter defined), (ii) the Company
and its Subsidiaries have received all permits, licenses or other approvals required of them under applicable Environmental Laws
to conduct their respective businesses and (iii) the Company and its Subsidiaries are in compliance with all terms and conditions
of any such permit, license or approval. The term “Environmental Laws” means all federal, state, local or foreign
laws relating to pollution or protection of human health or the environment (including, without limitation, ambient air, surface
water, groundwater, land surface or subsurface strata), including, without limitation, laws relating to emissions, discharges,
releases or threatened releases of chemicals, pollutants, contaminants, or toxic or hazardous substances or wastes (collectively,
“Hazardous Materials”) into the environment, or otherwise relating to the manufacture, processing, distribution,
use, treatment, storage, disposal, transport or handling of Hazardous Materials, as well as all authorizations, codes, decrees,
demands or demand letters, injunctions, judgments, licenses, notices or notice letters, orders, permits, plans or regulations
issued, entered, promulgated or approved thereunder.


 


(y)Subsidiary
Rights. The Company or one of its Subsidiaries has the unrestricted right to vote, and (subject to limitations imposed by
applicable law) to receive dividends and distributions on, all capital securities of its Subsidiaries as owned by the Company
or such Subsidiary.


 


(z)Investment
Company Status. Neither the Company nor any Subsidiary is, and upon consummation of the sale of the Securities, and for so
long any Buyer holds any Securities, will be, an “investment company,” a company controlled by an “investment
company” or an “affiliated person” of, or “promoter” or “principal underwriter” for,
an “investment company” as such terms are defined in the Investment Company Act of 1940, as amended.


 






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(aa)Tax
Status. The Company and each of its Subsidiaries (i) has made or filed all U.S. federal, state and foreign income and all
other tax returns, reports and declarations required by any jurisdiction to which it is subject, (ii) has paid all taxes and other
governmental assessments and charges that are material in amount, shown or determined to be due on such returns, reports and declarations,
except those being contested in good faith and (iii) has set aside on its books provision reasonably adequate for the payment
of all taxes for periods subsequent to the periods to which such returns, reports or declarations apply. There are no unpaid taxes
in any material amount claimed to be due by the taxing authority of any jurisdiction, and the officers of the Company know of
no basis for any such claim.


 


(bb)Internal
Accounting and Disclosure Controls. Except as set forth in Schedule 3(bb) or as set forth in the SEC Documents, the
Company and each of its Subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable assurance
that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions
are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles
and to maintain asset and liability accountability, (iii) access to assets or incurrence of liabilities is permitted only in accordance
with management’s general or specific authorization and (iv) the recorded accountability for assets and liabilities is compared
with the existing assets and liabilities at reasonable intervals and appropriate action is taken with respect to any difference.
Except as set forth in Schedule 3(bb) or as set forth in the SEC Documents, the Company maintains disclosure controls and
procedures (as such term is defined in Rule 13a-15 under the 1934 Act) that are effective in ensuring that information required
to be disclosed by the Company in the reports that it files or submits under the 1934 Act is recorded, processed, summarized and
reported, within the time periods specified in the rules and forms of the SEC, including, without limitation, controls and procedures
designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the
1934 Act is accumulated and communicated to the Company’s management, including its principal executive officer or officers
and its principal financial officer or officers, as appropriate, to allow timely decisions regarding required disclosure.


 


(cc)Off
Balance Sheet Arrangements. There is no transaction, arrangement, or other relationship between the Company and an unconsolidated
or other off balance sheet entity that is required to be disclosed by the Company in its 1934 Act filings and is not so disclosed
or that otherwise would be reasonably likely to have a Material Adverse Effect.


 


(dd)Ranking
of Notes. Except as set forth in Schedule 3(dd), no Indebtedness of the Company or any of its Subsidiaries is senior
to or ranks pari passu with the Notes in right of payment, whether with respect of payment of redemptions, interest, damages
or upon liquidation or dissolution or otherwise.


 


(ee)Transfer
Taxes. On each Closing Date, all stock transfer or other taxes (other than income or similar taxes) that are required to be
paid in connection with the sale and transfer of the Securities to be sold to each Buyer hereunder will be, or will have been,
fully paid or provided for by the Company, and all laws imposing such taxes will be or will have been complied with.


 


(ff)Manipulation
of Price. The Company has not, and to its knowledge no one acting on its behalf has, (i) taken, directly or indirectly, any
action designed to cause or to result, or that could reasonably be expected to cause or result, in the stabilization or manipulation
of the price of any security of the Company to facilitate the sale or resale of any of the Securities, (ii) other than J Streicher,
sold, bid for, purchased, or paid any compensation for soliciting purchases of, any of the Securities, or (iii) other than J Streicher,
paid or agreed to pay to any person any compensation for soliciting another to purchase any other securities of the Company.


 






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(gg)Acknowledgement
Regarding Buyers’ Trading Activity. The Company acknowledges and agrees that (i) none of the Buyers has been asked to
agree, nor has any Buyer agreed, to desist from purchasing or selling, long and/or short, securities of the Company, or “derivative”
securities based on securities issued by the Company or to hold the Securities for any specified term; (ii) any Buyer, and counter-parties
in “derivative” transactions to which any such Buyer is a party, directly or indirectly, presently may have a “short”
position in the Common Stock, and (iii) each Buyer shall not be deemed to have any affiliation with or control over any arm’s
length counter-party in any “derivative” transaction. The Company further understands and acknowledges that one or
more Buyers may engage in hedging and/or trading activities at various times during the period that the Securities are outstanding
and (b) such hedging and/or trading activities, if any, can reduce the value of the existing stockholders’ equity interest
in the Company both at and after the time the hedging and/or trading activities are being conducted. The Company acknowledges
that such aforementioned hedging and/or trading activities do not constitute a breach of this Agreement, the Notes, the Warrants
or any of the documents executed in connection herewith.


 


(hh)U.S.
Real Property Holding Corporation. The Company is not, has never been, and so long as any Securities remain outstanding, shall
not become, a U.S. real property holding corporation within the meaning of Section 897 of the Code and the Company shall so certify
upon any Buyer’s request.


 


(ii)Bank
Holding Company Act. Neither the Company nor any of its Subsidiaries or affiliates is subject to the Bank Holding Company
Act of 1956, as amended (the “BHCA”) and to regulation by the Board of Governors of the Federal Reserve System
(the “Federal Reserve”). Neither the Company nor any of its Subsidiaries or affiliates owns or controls, directly
or indirectly, five percent (5%) or more of the outstanding shares of any class of voting securities or twenty-five percent (25%)
or more of the total equity of a bank or any entity that is subject to the BHCA and to regulation by the Federal Reserve. Neither
the Company nor any of its Subsidiaries or affiliates exercises a controlling influence over the management or policies of a bank
or any entity that is subject to the BHCA and to regulation by the Federal Reserve.


 


(jj)No
Additional Agreements. Neither the Company nor any of its Subsidiaries has any agreement or understanding with any Buyer with
respect to the transactions contemplated by the Transaction Documents other than as specified in the Transaction Documents.


 


(kk)Disclosure.
Except for the transaction contemplated herein, the Company confirms that neither it nor any other Person acting on its behalf
has provided any of the Buyers or their agents or counsel with any information that constitutes or could reasonably be expected
to constitute material, nonpublic information. The Company understands and confirms that each of the Buyers will rely on the foregoing
representations in effecting transactions in securities of the Company. All disclosure provided to the Buyers regarding the Company,
or any of its Subsidiaries, their business and the transactions contemplated hereby, including the disclosure schedules to this
Agreement, furnished by or on behalf of the Company is true and correct and does not contain any untrue statement of a material
fact or omit to state any material fact necessary in order to make the statements made therein, in the light of the circumstances
under which they were made, not misleading. Each press release issued by the Company or any of its Subsidiaries during the twelve
(12) months preceding the date of this Agreement did not at the time of release contain any untrue statement of a material fact
or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light
of the circumstances under which they were made, not misleading. No event or circumstance has occurred or information exists with
respect to the Company or any of its Subsidiaries or its or their business, properties, prospects, operations or financial conditions,
which, under applicable law, rule or regulation, requires public disclosure or announcement by the Company but which has not been
so publicly announced or disclosed. The Company acknowledges and agrees that no Buyer makes or has made any representations or
warranties with respect to the transactions contemplated hereby other than those specifically set forth in Section 2.


 






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(ll)Shell
Company Status. The Company is not, and has not been since July 14, 2013, an issuer identified in Rule 144(i)(1) of the 1933
Act. As of July 14, 2013, the Company filed current “Form 10 information” (as defined in Rule 144 (i)(3)) with the
SEC reflecting its status as an entity that was no longer an issuer described in Rule 144(i)(1)(i).


 


(mm)Stock
Option Plans. Each stock option granted by the Company was granted (i) in accordance with the terms of the applicable stock
option plan of the Company and (ii) with an exercise price at least equal to the fair market value of the Common Stock on the
date such stock option would be considered granted under GAAP and applicable law. No stock option granted under the Company’s
stock option plan has been backdated. The Company has not knowingly granted, and there is no and has been no policy or practice
of the Company to knowingly grant, stock options prior to, or otherwise knowingly coordinate the grant of stock options with,
the release or other public announcement of material information regarding the Company or its Subsidiaries or their financial
results or prospects.


 


(nn)No
Disagreements with Accountants and Lawyers. There are no material disagreements of any kind presently existing, or reasonably
anticipated by the Company to arise, between the Company and the accountants and lawyers formerly or presently employed by the
Company. In addition, on or prior to the date hereof, the Company had discussions with its accountants about its financial statements
previously filed with the SEC. Based on those discussions, the Company has no reason to believe that it will need to restate any
such financial statements or any part thereof.


 


(oo) No
Disqualification Events. Except as set forth in Schedule 3(oo), with respect to Securities to be offered and sold hereunder
in reliance on Rule 506(b) under the 1933 Act, none of the Company, any of its predecessors, any affiliated issuer, any director,
executive officer, other officer of the Company participating in the offering hereunder, any beneficial owner of 20% or more of
the Company’s outstanding voting equity securities, calculated on the basis of voting power, nor any promoter (as that term
is defined in Rule 405 under the 1933 Act) connected with the Company in any capacity at the time of sale (each, an “Issuer
Covered Person” and, together, “Issuer Covered Persons”) is subject to any of the “Bad Actor”
disqualifications described in Rule 506(d)(1)(i) to (viii) under the 1933 Act (a “Disqualification Event”),
except for a Disqualification Event covered by Rule 506(d)(2) or (d)(3). The Company has exercised reasonable care to determine
whether any Issuer Covered Person is subject to a Disqualification Event. The Company has complied, to the extent applicable,
with its disclosure obligations under Rule 506(e), and has furnished to the Buyers a copy of any disclosures provided thereunder.


 


(pp)Other
Covered Persons. The Company is not aware of any Person (other than J Streicher) that has been or will be paid (directly or
indirectly) remuneration for solicitation of Buyers or potential purchasers in connection with the sale of any Securities.


 






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4. COVENANTS.


 


(a)Best
Efforts. Each party shall use its best efforts timely to satisfy each of the covenants and the conditions to be satisfied
by it as provided in Sections 6 and 7 of this Agreement.


 


(b)Form
D and Blue Sky. The Company agrees to file a Form D with respect to the Securities as required under Regulation D and to provide
a copy thereof to each Buyer promptly after such filing. The Company shall, on or before each Closing Date, take such action as
the Company shall reasonably determine is necessary in order to obtain an exemption for or to qualify the Securities for sale
to the Buyers at such Closing pursuant to this Agreement under applicable securities or “Blue Sky” laws of the states
of the United States (or to obtain an exemption from such qualification), and shall provide evidence of any such action so taken
to the Buyers on or prior to the applicable Closing Date. The Company shall make all filings and reports relating to the offer
and sale of the Securities required under applicable securities or “Blue Sky” laws of the states of the United States
following the applicable Closing Date.


 


(c)Reporting
Status. For so long as the Company is required to file reports under the 1934 Act, the Company shall timely file all reports
required to be filed with the SEC pursuant to the 1934 Act, and the Company shall not terminate its status as an issuer required
to file reports under the 1934 Act even if the 1934 Act or the rules and regulations thereunder would no longer require or otherwise
permit such termination.


 


(d)Use
of Proceeds. The Company will use the proceeds from the sale of the Securities solely for working capital and general corporate
purposes.


 


(e)Financial
Information. The Company agrees to send the following to each Buyer during the Reporting Period (i) unless the following are
filed with the SEC through EDGAR and are available to the public through the EDGAR system, within one (1) Business Day after the
filing thereof with the SEC, a copy of its Annual Reports on Form 10-K, any Quarterly Reports on Form 10-Q, any Current Reports
on Form 8-K (or any analogous reports under the 1934 Act) and any registration statements (other than on Form S-8) or amendments
filed pursuant to the 1933 Act, (ii) unless the following are filed with the SEC through EDGAR and are available to the public
through the EDGAR system, on the same day as the release thereof, facsimile or e-mailed copies of all press releases issued by
the Company or any of its Subsidiaries, and (iii) copies of any notices and other information made available or given to the stockholders
of the Company generally, contemporaneously with the making available or giving thereof to the stockholders. As used herein, “Business
Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New York are authorized
or required by law to remain closed.


 


(f)Registration
Rights Covenant. Effective upon the issuance by the Company of Notes for aggregate gross proceeds of at least $4.0 million
pursuant to the Agreement (such date, the “Trigger Date”), the Company shall prepare, and, as soon as practicable
but in no event later than 30 days after the Trigger Date, file with the SEC a Registration Statement on Form S-3 (the “Registration
Statement”) under the 1933 Act covering the resale of (i) the Conversion Shares issued or issuable pursuant to the terms
of the Notes, (ii) the Warrant Shares issued or issuable upon exercise of the Warrants and (iii) any capital stock of the Company
issued or issuable with respect to the Notes, the Conversion Shares, the Warrant Shares or the Warrants as a result of any stock
split, stock dividend, recapitalization, exchange or similar event or otherwise, in each case without regard to any limitations
on conversion and/or redemption of the Notes or exercise of the Warrants. In the event that Form S-3 is unavailable for such a
registration, the Company shall use Form S-1 or such other form as is available for such a registration on another appropriate
form. The Company shall use its best efforts to have such Registration Statement declared effective by the SEC as soon as practicable,
but in no event later than the Effectiveness Deadline. For purposes of this Section 4(f), “Effectiveness Deadline”
means the date which is the earlier of (x) (i) in the event that the Registration Statement is not subject to a full review by
the SEC, seventy-five (75) calendar days after the Trigger Date or (ii) in the event that the Registration Statement is subject
to a full review by the SEC, one-hundred five (105) calendar days after the Trigger Date and (y) the fifth (5th) Business Day
after the date the Company is notified (orally or in writing, whichever is earlier) by the SEC that such Registration Statement
will not be reviewed or will not be subject to further review; provided, however, that if the Effectiveness Deadline
falls on a Saturday, Sunday or other day that the SEC is closed for business, the Effectiveness Deadline shall be extended to
the next Business Day on which the SEC is open for business. In addition to the foregoing, the procedures applicable to the “Initial
Mandatory Registration” set forth in that certain Registration Rights Agreement, dated November 2, 2016, by and among the
Company and the investors listed on the Schedule of Buyers attached thereto and the investors, if any, party to a joinder agreement
with respect thereto, are incorporated by reference herein.


 






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(g)Transfer
Agent. For so long any Securities are outstanding, the Company shall cause its transfer agent to participate in the Depository
Trust Company Fast Automated Securities Transfer Program.


 


(h)Fees.
The Company shall be responsible for the payment of any placement agent’s fees, financial advisory fees, or broker’s
commissions (other than for Persons engaged by any Buyer) relating to or arising out of the transactions contemplated hereby,
including, without limitation, any fees or commissions payable to J Streicher. The Company shall pay, and hold each Buyer harmless
against, any liability, loss or expense (including, without limitation, reasonable attorney’s fees and out-of-pocket expenses)
arising in connection with any claim relating to any such payment. Except as otherwise set forth in the Transaction Documents,
each party to this Agreement shall bear its own expenses in connection with the sale of the Securities to the Buyers.


 


(i)Pledge
of Securities. The Company acknowledges and agrees that the Securities may be pledged by a Buyer in connection with a bona
fide margin agreement or other loan or financing arrangement that is secured by the Securities. The pledge of Securities shall
not be deemed to be a transfer, sale or assignment of the Securities hereunder, and no Buyer effecting a pledge of Securities
shall be required to provide the Company with any notice thereof or otherwise make any delivery to the Company pursuant to this
Agreement or any other Transaction Document, including, without limitation, Section 2(f) hereof; provided that a
Buyer and its pledgee shall be required to comply with the provisions of Section 2(f) hereof in order to effect a sale,
transfer or assignment of Securities to such pledgee. The Company hereby agrees to execute and deliver such documentation as a
pledgee of the Securities may reasonably request in connection with a pledge of the Securities to such pledgee by a Buyer.


 


(j)Disclosure
of Transactions and Other Material Information. On or before 8:30 a.m., New York City time, on June 6, 2018, (i) the Company
shall issue a press release reasonably acceptable to the Buyers and (ii) file a Current Report on Form 8-K describing the terms
of the transactions contemplated by the Transaction Documents in the form required by the 1934 Act and attaching the material
Transaction Documents (including, without limitation, this Agreement and all schedules and exhibits to this Agreement, the form
of Notes, the form of the Warrants and the Security Documents as exhibits to such filing) (including all attachments, the “8-K
Filing”). Subject to the foregoing, neither the Company, its Subsidiaries nor any Buyer shall issue any press releases
or any other public statements with respect to the transactions contemplated hereby; provided, however, that the Company shall
be entitled, without the prior approval of any Buyer, to make any press release or other public disclosure with respect to such
transactions (i) in substantial conformity with the 8-K Filing and contemporaneously therewith and (ii) as is required by applicable
law and regulations (provided that in the case of clause (i) each Buyer shall be consulted by the Company in connection with any
such press release or other public disclosure prior to its release). Except as required by applicable law, without the prior written
consent of any applicable Buyer, neither the Company nor any of its Subsidiaries or affiliates shall disclose the name of such
Buyer in its capacity as a Buyer in any filing, announcement, release or otherwise.


 






    	 	- 18 -	 



     


    




 


(k)Additional
Notes; Variable Securities. So long as any Buyer beneficially owns any Notes, the Company will not issue any Notes (other
than to the Buyers as contemplated hereby), and the Company shall not issue any other securities that would cause a breach or
default under the Notes; provided, however, the Company may amend its outstanding Indebtedness to provide for the
approved issuance of these Notes and adjust any relevant terms accordingly. For so long as any Notes remain outstanding, the Company
shall not, in any manner, issue or sell any rights, warrants or options to subscribe for or purchase Common Stock or directly
or indirectly convertible into or exchangeable or exercisable for Common Stock at a price which varies or may vary with the market
price of the Common Stock, including by way of one or more reset(s) to any fixed price unless the conversion, exchange or exercise
price of any such security cannot be less than the then applicable Conversion Price (as defined in the Notes) with respect to
the Common Stock into which any Note is convertible or the then applicable Exercise Price (as defined in the Warrants) with respect
to the Common Stock into which any Warrant is exercisable.


 


(l)Corporate
Existence. So long as any Buyer beneficially owns any Securities, the Company shall (i) maintain its corporate existence and
(ii) not be party to any Fundamental Transaction (as defined in the Notes) unless the Company is in compliance with the applicable
provisions governing Fundamental Transactions set forth in the Notes and the Warrants.


 


(m)Reservation
of Shares. So long as any Buyer owns any Securities, the Company shall take all action necessary to at all times have authorized,
and reserved for the purpose of issuance, no less than the Required Reserved Amount. If at any time the number of shares of Common
Stock authorized and reserved for issuance is not sufficient to meet the Required Reserved Amount, the Company will promptly take
all corporate action necessary to authorize and reserve a sufficient number of shares, including, without limitation, calling
a special meeting of stockholders to authorize additional shares to meet the Company’s obligations under Section 3(c),
in the case of an insufficient number of authorized shares, obtain stockholder approval of an increase in such authorized number
of shares, and voting the management shares of the Company in favor of an increase in the authorized shares of the Company to
ensure that the number of authorized shares is sufficient to meet the Required Reserved Amount.


 


(n)Conduct
of Business. The business of the Company and its Subsidiaries shall not be conducted in violation of any law, ordinance or
regulation of any governmental entity, except where such violations would not result, either individually or in the aggregate,
in a Material Adverse Effect.


 


(o)Short
Sales. Starting on the date hereof and ending on the 45th day following the applicable Closing Date, no Buyer shall engage
in any short sales or similar transactions with respect to the Common Stock, nor cause any Person to engage in any short sales
or similar transactions with respect to the Common Stock.


 






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(p)Notice
of Disqualification Events. The Company will notify the Buyers in writing, prior to the applicable Closing Date of (i) any
Disqualification Event relating to any Issuer Covered Person and (ii) any event that would, with the passage of time, become a
Disqualification Event relating to any Issuer Covered Person.


 


(q)Collateral
Agent.


 


(i)Each
Buyer hereby (a) appoints Empery Tax Efficient, LP as the collateral agent hereunder and under the Security Documents (in such
capacity, the “Collateral Agent”), and (b) authorizes the Collateral Agent (and its officers, directors, employees
and agents) to take such action on such Buyer’s behalf in accordance with the terms hereof and thereof. The Collateral Agent
shall not have, by reason hereof or pursuant to any Security Documents, a fiduciary relationship in respect of any Buyer. Neither
the Collateral Agent nor any of its officers, directors, employees and agents shall have any liability to any Buyer for any action
taken or omitted to be taken in connection hereof or the Security Documents except to the extent caused by its own gross negligence
or willful misconduct, and each Buyer agrees to defend, protect, indemnify and hold harmless the Collateral Agent and all of its
officers, directors, employees and agents (collectively, the “Collateral Agent Indemnitees”) from and against
any losses, damages, liabilities, obligations, penalties, actions, judgments, suits, fees, costs and expenses (including, without
limitation, reasonable attorneys’ fees, costs and expenses) incurred by such Collateral Agent Indemnitee, whether direct,
indirect or consequential, arising from or in connection with the performance by such Collateral Agent Indemnitee of the duties
and obligations of Collateral Agent pursuant hereto or any of the Security Documents.


 


(ii)The
Collateral Agent shall be entitled to rely upon any written notices, statements, certificates, orders or other documents or any
telephone message believed by it in good faith to be genuine and correct and to have been signed, sent or made by the proper Person,
and with respect to all matters pertaining to this Agreement or any of the other Transaction Documents and its duties hereunder
or thereunder, upon advice of counsel selected by it.


 


(iii) The
Collateral Agent may resign from the performance of all its functions and duties hereunder and under the Notes and the Security
Documents at any time by giving at least ten (10) Business Days prior written notice to the Company and each holder of the Notes.
Such resignation shall take effect upon the acceptance by a successor Collateral Agent of appointment as provided below. Upon
any such notice of resignation, the holders of a majority of the outstanding principal amount of Notes shall appoint a successor
Collateral Agent. Upon the acceptance of the appointment as Collateral Agent, such successor Collateral Agent shall succeed to
and become vested with all the rights, powers, privileges and duties of the retiring Collateral Agent, and the retiring Collateral
Agent shall be discharged from its duties and obligations under this Agreement, the Notes and the Security Agreement. After any
Collateral Agent’s resignation hereunder, the provisions of this Section 4(q) shall inure to its benefit. If a successor
Collateral Agent shall not have been so appointed within said ten (10) Business Day period, the retiring Collateral Agent shall
then appoint a successor Collateral Agent who shall serve until such time, if any, as the holders of a majority of the outstanding
principal amount of Notes appoints a successor Collateral Agent as provided above.


 


(iv) The
Company hereby covenants and agrees to take all actions as promptly as practicable reasonably requested by either the holders
of a majority of the outstanding principal amount of Notes or the Collateral Agent (or its successor), from time to time pursuant
to the terms of this Section 4(q), to secure a successor Collateral Agent satisfactory to such requesting part(y)(ies),
in their sole discretion, including, without limitation, by paying all fees of such successor Collateral Agent, by having the
Company agree to indemnify any successor Collateral Agent and by each of the Company executing a collateral agency agreement or
similar agreement and/or any amendment to the Security Documents reasonably requested or required by the successor Collateral
Agent.


 






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(v)The
Company agrees to pay the Collateral Agent, by wire transfer of immediately available funds in accordance with the Collateral
Agent’s written wire instructions, a quarterly agency fee of $10,000 within three (3) Business Days following the end of
each calendar quarter that the Collateral Agent acted as collateral agent in accordance with this Section 4(q) and the
Security Documents during such calendar quarter, provided, such fee shall be non-duplicative to any existing fee arrangements
with the Collateral Agent arising from existing Indebtedness.


 


(r)Closing
Documents. On or prior to the tenth (10th) Business Day after each applicable Closing Date, the Company agrees to deliver,
or cause to be delivered, to each Buyer a complete closing set of the executed Transaction Documents, Securities and any other
documents relating to each applicable Closing required to be delivered to any party pursuant to Section 7(b) hereof or
otherwise.


 


(s) Pledges
of Intellectual Property Rights. The Company hereby agrees that it shall not pledge, mortgage, encumber or otherwise permit
the Intellectual Property Rights to be subject to any lien, security interest, encumbrances, or charge (such actions hereinafter
referred to collectively as “Pledge”) any of its Intellectual Property Rights except for Pledges related to
current commercial development agreements as listed on Schedule 4(s) or for future commercial development agreements entered
into in the ordinary course of business. The Company hereby further agrees: (a) to promptly notify the Collateral Agent of any
such future commercial development agreements (but only if the Collateral Agent executes a confidentiality agreement with respect
to any material, non-public information regarding or related to such commercial development agreements prior to its receipt of
any such material, non-public information), and (b) to amend Schedule 4(s) in connection with such additional Pledges,
with the approval of the Collateral Agent, which approval shall not be unreasonably withheld.


 


5.REGISTER;
TRANSFER AGENT INSTRUCTIONS.


 


(a)Register.
The Company shall maintain at its principal executive offices (or such other office or agency of the Company as it may designate
by notice to each holder of Securities), a register for the Notes and the Warrants in which the Company shall record the name
and address of the Person in whose name the Notes and the Warrants have been issued (including the name and address of each transferee),
the principal amount of Notes held by such Person, the number of Conversion Shares issuable pursuant to the terms of the Notes
and the number of Warrant Shares issuable upon exercise of the Warrants held by such Person. The Company shall keep the register
open and available at all times during business hours for inspection of any Buyer or its legal representatives.


 


(b)Transfer
Agent Instructions. The Company shall issue irrevocable instructions to its transfer agent, and any subsequent transfer agent,
in the form of Exhibit H attached hereto (the “Irrevocable Transfer Agent Instructions”) to issue certificates
or credit shares to the applicable balance accounts at DTC, registered in the name of each Buyer or its respective nominee(s),
for the Conversion Shares and Warrant Shares issued at each applicable Closing or pursuant to the terms of the Notes or exercise
of the Warrants in such amounts as specified from time to time by each Buyer to the Company upon conversion of the Notes or exercise
of the Warrants. The Company warrants that no instruction other than the Irrevocable Transfer Agent Instructions referred to in
this Section 5(b), and stop transfer instructions to give effect to Section 2(f) hereof, will be given by the Company
to its transfer agent with respect to the Securities, and that the Securities shall otherwise be freely transferable on the books
and records of the Company as and to the extent provided in this Agreement and the other Transaction Documents. If a Buyer effects
a sale, assignment or transfer of the Securities in accordance with Section 2(f), the Company shall permit the transfer
and shall promptly instruct its transfer agent to issue one or more certificates or credit shares to the applicable balance accounts
at DTC in such name and in such denominations as specified by such Buyer to effect such sale, transfer or assignment. In the event
that such sale, assignment or transfer involves the Conversion Shares or Warrant Shares sold, assigned or transferred pursuant
to an effective registration statement or pursuant to Rule 144, the transfer agent shall issue such Securities to the Buyer, assignee
or transferee, as the case may be, without any restrictive legend. The Company acknowledges that a breach by it of its obligations
hereunder will cause irreparable harm to a Buyer. Accordingly, the Company acknowledges that the remedy at law for a breach of
its obligations under this Section 5(b) will be inadequate and agrees, in the event of a breach or threatened breach by
the Company of the provisions of this Section 5(b), that a Buyer shall be entitled, in addition to all other available
remedies, to seek an order and/or injunction restraining any breach and requiring immediate issuance and transfer, without the
necessity of showing economic loss and without any bond or other security being required.


 






    	 	- 21 -	 



     


    




 


6.CONDITIONS
TO THE COMPANY’S OBLIGATION TO SELL.


 


(a) The
obligation of the Company hereunder to issue and sell the Initial Notes and the related Warrants to each Initial Buyer at the
Initial Closing is subject to the satisfaction, at or before the Initial Closing Date, of each of the following conditions, provided
that these conditions are for the Company’s sole benefit and may be waived by the Company at any time in its sole discretion
by providing each Buyer with prior written notice thereof:


 


(i) Such
Initial Buyer shall have executed each of the Transaction Documents to which it is a party and the Investor Questionnaire and
delivered each of the same to the Company.


 


(ii) Such
Initial Buyer shall have executed and delivered to the Company the flow of funds memorandum (“Flow of Funds”),
confirming the Initial Purchase Price payable by such Initial Buyer and the wiring instructions applicable thereto.


 


(iii) Such
Initial Buyer shall have delivered its Initial Purchase Price to the Company for the Initial Note(s) and Warrant(s) purchased
by such Initial Buyer at the Initial Closing by wire transfer of immediately available funds pursuant to the wire instructions
provided by the Company provided, if the Initial Buyer is directed to wire its funds to a third party pursuant to the Flow
of Funds, the receipt of funds by such designated third party shall constitute delivery of its Purchase Price, in part or in whole
as indicated in the Flow of Funds, hereunder.


 


(iv) The
representations and warranties of such Initial Buyer shall be true and correct in all material respects (except for those representations
and warranties that are qualified by materiality or Material Adverse Effect, which shall be true and correct in all respects)
as of the date when made and as of the Initial Closing Date as though made at that time (except for representations and warranties
that speak as of a specific date which shall be true and correct as of such specified date), and such Initial Buyer shall have
performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by this Agreement
to be performed, satisfied or complied with by such Initial Buyer at or prior to the Initial Closing Date.


 






    	 	- 22 -	 



     


    




 


(b) The
obligation of the Company hereunder to issue and sell the Subsequent Note(s) to each Subsequent Buyer at the applicable Subsequent
Closing is subject to the satisfaction, at or before the applicable Subsequent Closing Date of each of the following conditions,
provided that these conditions are for the Company’s sole benefit and may be waived by the Company at any time in
its sole discretion by providing each Subsequent Buyer with prior written notice thereof:


 


(i) Such
Subsequent Buyer shall have executed the Investor Questionnaire and delivered the same to the Company.


 


(ii) Such
Subsequent Buyer shall have executed either (x) a Joinder Agreement or (y) a Subsequent Closing Notice, as applicable, and delivered
the same to the Company.


 


(iii) Such
Subsequent Buyer shall have delivered its Subsequent Purchase Price to the Company for the Subsequent Note(s) being purchased
by such Subsequent Buyer at the applicable Subsequent Closing by wire transfer of immediately available funds pursuant to the
wire instructions provided by the Company.


 


(iv) The
representations and warranties of such Subsequent Buyer shall be true and correct in all material respects (except for those representations
and warranties that are qualified by materiality or Material Adverse Effect, which shall be true and correct in all respects)
as of the date when made and as of the applicable Subsequent Closing Date as though made at that time (except for representations
and warranties that speak as of a specific date which shall be true and correct as of such specified date), and such Subsequent
Buyer shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required
by this Agreement to be performed, satisfied or complied with by such Subsequent Buyer at or prior to the applicable Subsequent
Closing Date.


 


7.CONDITIONS
TO EACH BUYER’S OBLIGATION TO PURCHASE.


 


(a) The
obligation of each Initial Buyer hereunder to purchase the Initial Notes and Warrants at the Initial Closing is subject to the
satisfaction, at or before the Initial Closing Date, of each of the following conditions, provided that these conditions are for
each Initial Buyer’s sole benefit and may be waived by such Initial Buyer at any time in its sole discretion by providing
the Company with prior written notice thereof:


 


(i) The
Company and each of its Subsidiaries shall have duly executed and delivered to such Initial Buyer each of the following documents
to which it is a party: (A) each of the Transaction Documents, and (B) the Initial Note(s) (allocated in such principal amounts
as such Initial Buyer shall request) and the related Warrant(s), in each case being purchased by such Initial Buyer at the Initial
Closing pursuant to this Agreement.


 


(ii) The
Company shall have delivered to such Initial Buyer a copy of the Irrevocable Transfer Agent Instructions, in the form of Exhibit
H attached hereto, which instructions shall have been delivered to and acknowledged in writing by the Company’s transfer
agent.


 


(iii) The
Company shall have delivered to such Initial Buyer a certificate evidencing the good standing of the Company and each of its Subsidiaries
in such entity’s jurisdiction of formation issued by the Secretary of State (or comparable office) of such jurisdiction,
as of a date within ten (10) days of the Initial Closing Date.


 






    	 	- 23 -	 



     


    




 


(iv) The
Company shall have delivered to such Initial Buyer a certificate evidencing the Company’s and each of its Subsidiary’s
qualification as a foreign corporation and good standing issued by the Secretary of State (or comparable office) of each jurisdiction
in which the Company and its Subsidiaries conduct business, as of a date within ten (10) days of the Initial Closing Date.


 


(v) The
Company shall have delivered to such Initial Buyer a certificate, executed by the Secretary of the Company and dated as of the
Initial Closing Date, as to (i) the resolutions consistent with Section 3(b) as adopted by the Company’s and each
of its Subsidiary’s Board of Directors in a form reasonably acceptable to such Initial Buyer, (ii) the Certificate
of Incorporation of the Company and each of its Subsidiaries and (iii) the Bylaws of the Company and each of its Subsidiaries,
each as in effect at the Initial Closing, in the form attached hereto as Exhibit I.


 


(vi) The
representations and warranties of the Company shall be true and correct in all material respects (except for those representations
and warranties that are qualified by materiality or Material Adverse Effect, which shall be true and correct in all respects)
as of the date when made and as of the Initial Closing Date as though made at that time (except for representations and warranties
that speak as of a specific date which shall be true and correct as of such specified date) and the Company shall have performed,
satisfied and complied in all material respects with the covenants, agreements and conditions required by the Transaction Documents
to be performed, satisfied or complied with by the Company at or prior to the Initial Closing Date. Such Initial Buyer shall have
received a certificate, executed by the Chief Financial Officer of the Company, dated as of the Initial Closing Date, to the foregoing
effect and as to such other matters as may be reasonably requested by such Initial Buyer in the form attached hereto as Exhibit
J.


 


(vii) The
Common Stock (I) shall be designated for quotation on the Principal Market and (II) shall not have been suspended, as of the Initial
Closing Date, by the SEC or the Principal Market from quotation on the Principal Market nor shall suspension by the SEC or the
Principal Market have been threatened, as of the Initial Closing Date, in writing by the SEC or the Principal Market.


 


(viii) The
Company shall have obtained all governmental, regulatory or third party consents and approvals, if any, necessary for the sale
of the Securities.


 


(ix) Each
of the Company’s Subsidiaries shall have executed and delivered to such Buyer the Guaranty Amendment.


 


(x) The
Collateral Agent shall have received (x) the Third Amendment to the Subordination and Intercreditor Agreement, in the form attached
hereto as Exhibit K-1 (the “September 2016 Subordination Agreement Amendment”), which further amends
that certain Subordination and Intercreditor Agreement dated as of September 1, 2016 by and among Longboard Capital Advisors LLC,
the Company, Ener-Core Power, Inc., Anthony Tang, as a Senior Lender (as defined therein) and Empery Tax Efficient, LP in its
capacity as collateral agent for the Senior Note Lenders (as defined therein), as amended to date, and (x) the Termination Agreement,
in the form attached hereto as Exhibit K-2 (the “Termination Agreement”), which terminates that certain
Subordination and Intercreditor Agreement dated as of November 2, 2015 by and among Anthony Tang, the Company and Empery Tax Efficient,
LP in its capacity as collateral agent for the Senior Lenders (as defined therein), as amended to date, in each case, duly executed
and delivered by all parties thereto.


 






    	 	- 24 -	 



     


    




 


(xi) The
Collateral Agent shall have received the Security Amendment Agreement, duly executed by the Company and each of its Subsidiaries,
together with the original stock certificates representing all of the equity interests and all promissory notes required to be
pledged thereunder, accompanied by undated stock powers and allonges executed in blank and other proper instruments of transfer.


 


(xii) The
Company shall have delivered to such Initial Buyer such other documents relating to the transactions contemplated by this Agreement
as such Initial Buyer or its counsel may reasonably request.


 


(b)The
obligation of each Subsequent Buyer hereunder to purchase the Subsequent Notes at the applicable Subsequent Closing is subject
to the satisfaction, at or before the Subsequent Closing Date, of each of the following conditions, provided that these conditions
are for each Subsequent Buyer’s sole benefit and may be waived by such Subsequent Buyer at any time in its sole discretion
by providing the Company with prior written notice thereof:


 


(i) The
Company and each of its Subsidiaries shall have duly executed and delivered to such Subsequent Buyer each of the following documents
to which it is a party: (A) each of the Transaction Documents, and (B) the Subsequent Note(s) (allocated in amounts as such Subsequent
Buyer shall request) being purchased by such Subsequent Buyer at the applicable Subsequent Closing pursuant to this Agreement.


 


(ii) If
applicable, the Company shall have duly executed and delivered to such Subsequent Buyer the Joinder Agreement or Subsequent Closing
Notice of such Subsequent Buyer.


 


(iii) The
Company shall have delivered to such Subsequent Buyer a copy of the Irrevocable Transfer Agent Instructions, in the form of Exhibit
H attached hereto, which instructions shall have been delivered to and acknowledged in writing by the Company’s transfer
agent.


 


(iv) The
Company shall have delivered to such Subsequent Buyer a certificate evidencing the good standing of the Company and each of its
Subsidiaries in such entity’s jurisdiction of formation issued by the Secretary of State (or comparable office) of such
jurisdiction, as of a date within ten (10) days of the Initial Closing Date, and a bringdown of such certificate(s) as of a date
within ten (10) days of the applicable Subsequent Closing Date.


 


(v) The
Company shall have delivered to such Subsequent Buyer a certificate evidencing the Company’s and each of its Subsidiary’s
qualification as a foreign corporation and good standing issued by the Secretary of State (or comparable office) of each jurisdiction
in which the Company and its Subsidiaries conduct business, as of a date within ten (10) days of the Initial Closing Date, and
a bringdown of such certificate(s) as of a date within ten (10) days of the applicable Subsequent Closing Date.


 


(vi) The
Company shall have delivered to such Subsequent Buyer a certificate, executed by the Secretary of the Company and dated as of
the Initial Closing Date, as to (i) the resolutions consistent with Section 3(b) as adopted by the Company’s and
each of its Subsidiary’s Board of Directors in a form reasonably acceptable to such Subsequent Buyer, (ii) the Certificate
of Incorporation of the Company and each of its Subsidiaries and (iii) the Bylaws of the Company and each of its Subsidiaries,
each as in effect at the applicable Subsequent Closing, in the form attached hereto as Exhibit I.


 






    	 	- 25 -	 



     


    




 


(vii) The
representations and warranties of the Company shall be true and correct in all material respects (except for those representations
and warranties that are qualified by materiality or Material Adverse Effect, which shall be true and correct in all respects)
as of the date when made and as of the applicable Subsequent Closing Date as though made at that time (except for representations
and warranties that speak as of a specific date which shall be true and correct as of such specified date) and the Company shall
have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by the
Transaction Documents to be performed, satisfied or complied with by the Company at or prior to the applicable Subsequent Closing
Date. Such Subsequent Buyer shall have received a certificate, executed by the Chief Financial Officer of the Company, dated as
of the applicable Subsequent Closing Date, to the foregoing effect and as to such other matters as may be reasonably requested
by such Subsequent Buyer in the form attached hereto as Exhibit J.


 


(viii) The
Common Stock (I) shall be designated for quotation on the Principal Market and (II) shall not have been suspended, as of the applicable
Subsequent Closing Date, by the SEC or the Principal Market from quotation on the Principal Market nor shall suspension by the
SEC or the Principal Market have been threatened, as of the applicable Subsequent Closing Date, in writing by the SEC or the Principal
Market.


 


(ix) The
Company shall have obtained all governmental, regulatory or third party consents and approvals, if any, necessary for the sale
of the Securities.


 


(x) The
Company shall have delivered to such Subsequent Buyer such other documents relating to the transactions contemplated by this Agreement
as such Subsequent Buyer or its counsel may reasonably request.


 


8.TERMINATION.
In the event that the Initial Closing shall not have occurred with respect to an Initial Buyer on or before five (5) Business
Days from the date hereof due to the Company’s or such Initial Buyer’s failure to satisfy the conditions set forth
in Sections 6 and 7 above (and the nonbreaching party’s failure to waive such unsatisfied condition(s)), the
nonbreaching party shall have the option to terminate this Agreement with respect to such breaching party at the close of business
on such date by delivering a written notice to that effect to each other party to this Agreement and without liability of any
party to any other party.


 


9.MISCELLANEOUS.


 


(a)Governing
Law; Jurisdiction; Jury Trial. All questions concerning the construction, validity, enforcement and interpretation of this
Agreement shall be governed by the internal laws of the State of New York, without giving effect to any choice of law or conflict
of law provision or rule (whether of the State of New York or any other jurisdictions) that would cause the application of the
laws of any jurisdictions other than the State of New York. Each party hereby irrevocably submits to the exclusive jurisdiction
of the state and federal courts sitting in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder
or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and
agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any
such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or
proceeding is improper. Each party hereby irrevocably waives personal service of process and consents to process being served
in any such suit, action or proceeding by mailing a copy thereof to such party at the address for such notices to it under this
Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained
herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. EACH PARTY HEREBY IRREVOCABLY
WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION
WITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.


 






    	 	- 26 -	 



     


    




 


(b)Counterparts.
This Agreement and any amendments hereto may be executed and delivered in two or more counterparts, all of which shall be considered
one and the same agreement and shall become effective when counterparts have been signed by each party hereto and delivered to
the other party; provided that a facsimile or “.pdf” electronic format signature shall be considered due execution
and shall be binding upon the signatory thereto with the same force and effect as if the signature were an original, not a facsimile
or “.pdf” electronic format signature.


 


(c)Headings.
The headings of this Agreement are for convenience of reference and shall not form part of, or affect the interpretation of, this
Agreement.


 


(d)Severability.
If any provision of this Agreement is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent
jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the
broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of such provision shall not affect
the validity of the remaining provisions of this Agreement so long as this Agreement as so modified continues to express, without
material change, the original intentions of the parties as to the subject matter hereof and the prohibited nature, invalidity
or unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations
of the parties or the practical realization of the benefits that would otherwise be conferred upon the parties. The parties will
endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s),
the effect of which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s).


 


(e)Entire
Agreement; Amendments. This Agreement and the other Transaction Documents supersede all other prior oral or written agreements
between the Buyers, the Company, their affiliates and Persons acting on their behalf with respect to the matters discussed herein,
and this Agreement, the other Transaction Documents and the instruments referenced herein and therein contain the entire understanding
of the parties with respect to the matters covered herein and therein and, except as specifically set forth herein or therein,
neither the Company nor any Buyer makes any representation, warranty, covenant or undertaking with respect to such matters. Provisions
of this Agreement may be amended and the observance thereof may be waived (either generally or in a particular instance and either
retroactively or prospectively), only with the written consent of the Company, Anthony Tang so long as Anthony Tang or any of
his affiliates holds any Securities and Empery so long as Empery or any of its affiliates holds any Securities (the “Required
Holders”); provided that any such amendment or waiver that complies with the foregoing but that disproportionately,
materially and adversely affects the rights and obligations of any Buyer relative to the comparable rights and obligations of
the other Buyers shall require the prior written consent of such adversely affected Buyer; provided, further, that
the provisions of Section 4(q) cannot be amended without the additional prior written approval of the Collateral Agent
or its successor. Any amendment or waiver effected in accordance with this Section 9(e) shall be binding upon each Buyer
and holder of Securities and the Company. No such amendment shall be effective to the extent that it applies to less than all
of the Buyers or holders of Securities. No consideration shall be offered or paid to any Person to amend or consent to a waiver
or modification of any provision of any of the Transaction Documents unless the same consideration (other than the reimbursement
of legal fees) also is offered to all of the parties to the Transaction Documents, holders of Notes or holders of the Warrants,
as the case may be. The Company has not, directly or indirectly, made any agreements with any Buyers relating to the terms or
conditions of the transactions contemplated by the Transaction Documents except as set forth in the Transaction Documents. Without
limiting the foregoing, the Company confirms that, except as set forth in this Agreement, no Buyer has made any commitment or
promise or has any other obligation to provide any financing to the Company or otherwise.


 






    	 	- 27 -	 



     


    




 


(f)Notices.
Any notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must
be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when
sent by facsimile (provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending
party); (iii) upon receipt, if sent by e-mail (provided that such sent e-mail is kept on file (whether electronically or otherwise)
by the sending party and the sending party does not immediately receive an automatically generated message from the recipient’s
e-mail server that such e-mail could not be delivered to such recipient) or (iv) one Business Day after deposit with an overnight
courier service, in each case properly addressed to the party to receive the same. The addresses, facsimile numbers and e-mail
addresses for such communications shall be:


 





If to the Company:


 


	 	Ener-Core, Inc.
	 	8965 Research Drive, Suite 100
	 	Irvine, California 92618
	 	Telephone:	(949) 616-3333
	 	Facsimile:	(949) 616-3399
	 	Attention:	Mr. Domonic J. Carney, Chief Financial Officer
	 	Email:	DJ.Carney@ener-core.com





 


With a copy (for informational purposes only) to:


 


	 	K&L Gates LLP
	 	1 Park Plaza, 12th Floor
	 	Irvine, California 92614
	 	Telephone:	(949) 623-3545
	 	Facsimile:	(949) 623-4477
	 	Attention:	Shoshannah D. Katz, Esq.
	 	Email:	shoshannah.katz@klgates.com


 


If to the Transfer Agent:


 


	 	VStock Transfer, LLC.
	 	18 Lafayette Place
	 	Woodmere, New York 11598
	 	Telephone:	(212) 828-8436
	 	Facsimile:	(646) 536-3179
	 	Attention:	Yoel Goldfeder
	 	E-mail: 	yoel@vstocktransfer.com













 


If
to a Buyer, to its address, facsimile number and e-mail address set forth on the Schedule of Buyers, with copies to such Buyer’s
representatives as set forth on the Schedule of Buyers, or
to such other address, facsimile number and/or e-mail address and/or to the attention of such other Person as the recipient party
has specified by written notice given to each other party five (5) days prior to the effectiveness of such change. Written confirmation
of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically
generated by the sender’s facsimile machine or e-mail containing the time, date, recipient facsimile number and an image
of the first page of such transmission or (C) provided by an overnight courier service shall be rebuttable evidence of personal
service, receipt by facsimile or receipt from an overnight courier service in accordance with clause (i), (ii) or (iv) above,
respectively. A copy of the e-mail transmission containing the time, date and recipient e-mail address shall be rebuttable evidence
of receipt by e-mail in accordance with clause (iii) above.


 






    	 	- 28 -	 



     


    










 


(g)Successors
and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties and their respective successors
and assigns, including any purchasers of the Securities. The Company shall not assign this Agreement or any rights or obligations
hereunder without the prior written consent of the Required Holders, including by way of a Fundamental Transaction (unless the
Company is in compliance with the applicable provisions governing Fundamental Transactions set forth in the Notes and the Warrants).
A Buyer may assign some or all of its rights hereunder without the consent of the Company, in which event such assignee shall
be deemed to be a Buyer hereunder with respect to such assigned rights.


 


(h)No
Third Party Beneficiaries. This Agreement is intended for the benefit of the parties hereto and their respective permitted
successors and assigns, and is not for the benefit of, nor may any provision hereof be enforced by, any other Person, except that
each Indemnitee shall have the right to enforce the obligations of the Company with respect to Section 9(k).


 


(i)Survival.
Unless this Agreement is terminated under Section 8, the representations and warranties of the Company and the Buyers contained
in Sections 2 and 3, and the agreements and covenants set forth in Sections 4, 5 and 9 shall
survive each Closing. Each Buyer shall be responsible only for its own representations, warranties, agreements and covenants hereunder.


 


(j)Further
Assurances. Each party shall do and perform, or cause to be done and performed, all such further acts and things, and shall
execute and deliver all such other agreements, certificates, instruments and documents, as any other party may reasonably request
in order to carry out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated
hereby, including without limitation taking such reasonable action as is necessary or desirable to perfect a security interest
in the Company’s or one or more of its Subsidiaries’ Intellectual Property. Also, without limiting the generality
of the requirements of the Company set forth in the Transaction Documents, the Company hereby covenants and agrees to provide
prompt notice to the Collateral Agent upon the issuance of any patents in the name of the Company or any of their Subsidiaries
anywhere in the world.


 


(k)Indemnification.


 


(i) In
consideration of each Buyer’s execution and delivery of the Transaction Documents and acquiring the Securities thereunder
and in addition to all of the Company’s other obligations under the Transaction Documents, the Company shall defend, protect,
indemnify and hold harmless each Buyer and each other holder of the Securities and all of their stockholders, partners, members,
officers, directors, employees and direct or indirect investors and any of the foregoing Persons’ agents or other representatives
(including, without limitation, those retained in connection with the transactions contemplated by this Agreement) (collectively,
the “Indemnitees”) from and against any and all actions, causes of action, suits, claims, losses, costs, penalties,
fees, liabilities and damages, and expenses in connection therewith (irrespective of whether any such Indemnitee is a party to
the action for which indemnification hereunder is sought), and including reasonable attorneys’ fees and disbursements (the
“Indemnified Liabilities”), incurred by any Indemnitee as a result of, or arising out of, or relating to (a)
any misrepresentation or breach of any representation or warranty made by the Company in the Transaction Documents or any other
certificate, instrument or document contemplated hereby or thereby, (b) any breach of any covenant, agreement or obligation of
the Company contained in the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby
or (c) any cause of action, suit or claim brought or made against such Indemnitee by a third party (including for these purposes
a derivative action brought on behalf of the Company) and arising out of or resulting from (i) the execution, delivery, performance
or enforcement of the Transaction Documents or any other certificate, instrument or document contemplated hereby or thereby, (ii)
any transaction financed or to be financed in whole or in part, directly or indirectly, with the proceeds of the issuance of the
Securities, (iii) any disclosure made by such Buyer pursuant to Section 4(j), or (iv) the status of such Buyer or holder
of the Securities as an investor in the Company pursuant to the transactions contemplated by the Transaction Documents. To the
extent that the foregoing undertaking by the Company may be unenforceable for any reason, the Company shall make the maximum contribution
to the payment and satisfaction of each of the Indemnified Liabilities that is permissible under applicable law.


 






    	 	- 29 -	 



     


    




 


(ii) Promptly
after receipt by an Indemnitee under this Section 9(k) of notice of the commencement of any action or proceeding (including
any governmental action or proceeding) involving an Indemnified Liability, such Indemnitee shall, if a claim for indemnification
in respect thereof is to be made against any indemnifying party under this Section 9(k), deliver to the indemnifying party
a written notice of the commencement thereof, and the indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume control of the defense
thereof with counsel mutually satisfactory to the indemnifying party and the Indemnitee; provided, however, that an Indemnitee
shall have the right to retain its own counsel with the fees and expenses of not more than one counsel for such Indemnitee to
be paid by the indemnifying party, if, in the reasonable opinion of the Indemnitee, the representation by such counsel of the
Indemnitee and the indemnifying party would be inappropriate due to actual or potential differing interests between such Indemnitee
and any other party represented by such counsel in such proceeding. Legal counsel referred to in the immediately preceding sentence
shall be selected by the Buyer holding at least a majority of the aggregate principal amount of the Notes. The Indemnitee shall
cooperate fully with the indemnifying party in connection with any negotiation or defense of any such action or Indemnified Liabilities
by the indemnifying party and shall furnish to the indemnifying party all information reasonably available to the Indemnitee that
relates to such action or Indemnified Liabilities. The indemnifying party shall keep the Indemnitee fully apprised at all times
as to the status of the defense or any settlement negotiations with respect thereto. No indemnifying party shall be liable for
any settlement of any action, claim or proceeding effected without its prior written consent, provided, however, that the indemnifying
party shall not unreasonably withhold, delay or condition its consent. No indemnifying party shall, without the prior written
consent of the Indemnitee, which consent shall not be unreasonably withheld conditioned or delayed, consent to entry of any judgment
or enter into any settlement or other compromise which (i) does not include as an unconditional term thereof the giving by the
claimant or plaintiff to such Indemnitee of a release from all liability in respect to such Indemnified Liabilities or litigation,
(ii) requires any admission of wrongdoing by such Indemnitee, or (iii) obligates or requires an Indemnitee to take, or refrain
from taking, any action. Following indemnification as provided for hereunder, the indemnifying party shall be subrogated to all
rights of the Indemnitee with respect to all third parties, firms or corporations relating to the matter for which indemnification
has been made. The failure to deliver written notice to the indemnifying party within a reasonable time of the commencement of
any such action shall not relieve such indemnifying party of any liability to the Indemnitee under this Section 9(k), except
to the extent that the indemnifying party is prejudiced in its ability to defend such action.


 






    	 	- 30 -	 



     


    




 


(iii) The
indemnification required by this Section 9(k) shall be made by periodic payments of the amount thereof during the course
of the investigation or defense, as and when bills are received or Indemnified Liabilities are incurred.


 


(iv) The
indemnity agreements contained herein shall be in addition to (x) any cause of action or similar right of the Indemnitee against
the indemnifying party or others, and (y) any liabilities the indemnifying party may be subject to pursuant to the law.


 


(l)No
Strict Construction. The language used in this Agreement will be deemed to be the language chosen by the parties to express
their mutual intent, and no rules of strict construction will be applied against any party.


 


(m)Remedies.
Each Buyer and each holder of the Securities shall have all rights and remedies set forth in the Transaction Documents and all
rights and remedies which such holders have been granted at any time under any other agreement or contract and all of the rights
which such holders have under any law. Any Person having any rights under any provision of this Agreement shall be entitled to
enforce such rights specifically (without posting a bond or other security), to recover damages by reason of any breach of any
provision of this Agreement and to exercise all other rights granted by law. Furthermore, the Company recognizes that in the event
that it fails to perform, observe, or discharge any or all of its obligations under the Transaction Documents, any remedy at law
may prove to be inadequate relief to the Buyers. The Company therefore agrees that the Buyers shall be entitled to seek temporary
and permanent injunctive relief in any such case without the necessity of proving actual damages and without posting a bond or
other security.


 


(n)Rescission
and Withdrawal Right. Notwithstanding anything to the contrary contained in (and without limiting any similar provisions of)
the Transaction Documents, whenever any Buyer exercises a right, election, demand or option under a Transaction Document and the
Company does not timely perform its related obligations within the periods therein provided, then such Buyer may rescind or withdraw,
in its sole discretion from time to time upon written notice to the Company, any relevant notice, demand or election in whole
or in part without prejudice to its future actions and rights.


 


(o)Payment
Set Aside. To the extent that the Company makes a payment or payments to the Buyers hereunder or pursuant to any of the other
Transaction Documents or the Buyers enforce or exercise their rights hereunder or thereunder, and such payment or payments or
the proceeds of such enforcement or exercise or any part thereof are subsequently invalidated, declared to be fraudulent or preferential,
set aside, recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company, a trustee,
receiver or any other Person under any law (including, without limitation, any bankruptcy law, foreign, state or federal law,
common law or equitable cause of action), then to the extent of any such restoration the obligation or part thereof originally
intended to be satisfied shall be revived and continued in full force and effect as if such payment had not been made or such
enforcement or setoff had not occurred.


 


(p)Independent
Nature of Buyers’ Obligations and Rights. The obligations of each Buyer under any Transaction Document are several and
not joint with the obligations of any other Buyer, and no Buyer shall be responsible in any way for the performance of the obligations
of any other Buyer under any Transaction Document. Nothing contained herein or in any other Transaction Document, and no action
taken by any Buyer pursuant hereto or thereto, shall be deemed to constitute the Buyers as, and the Company acknowledges that
the Buyers do not so constitute, a partnership, an association, a joint venture or any other kind of entity, or create a presumption
that the Buyers are in any way acting in concert or as a group, and the Company shall not assert any such claim with respect to
such obligations or the transactions contemplated by the Transaction Documents and the Company acknowledges that the Buyers are
not acting in concert or as a group with respect to such obligations or the transactions contemplated by the Transaction Documents.
The Company acknowledges and each Buyer confirms that it has independently participated in the negotiation of the transaction
contemplated hereby with the advice of its own counsel and advisors. Each Buyer shall be entitled to independently protect and
enforce its rights, including, without limitation, the rights arising out of this Agreement or out of any other Transaction Documents,
and it shall not be necessary for any other Buyer to be joined as an additional party in any proceeding for such purpose.


 


[Signature
Pages Follow]





 




    	 	- 31 -	 



     


    

 


IN
WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to this Securities Purchase Agreement
to be duly executed as of the date first written above.


 


	 	COMPANY:
	 	 
	 	ENER-CORE,
    INC.
	 	 	 
	 	By:	
	 	 	Name:
    Domonic J. Carney
	 	 	Title:  Chief
    Financial Officer





 





Signature
Page to Securities Purchase Agreement





 




     


     


    

 


IN
WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to this Securities Purchase Agreement
to be duly executed as of the date first written above.


 


	 	BUYER:
	 	 
	 	[______]
	 	 	
	 	By:	    
	 	 	Name:
	 	 	Title:
	 	 	 
	 	
	 	Aggregate
    Principal Amount of Note Purchased:
	 	
	 	Purchase
    Price:
	 	 
	 	Address:
	 	
	 	
	 	 
	 	 
	 	Attention:
	 	 
	 	Facsimile:
	 	 
	 	Telephone:
	 	 
	 	Email:
	 	 



 





Signature
Page to Securities Purchase Agreement







 






     


     


    




 


SCHEDULE
OF BUYERS








 





	(1)	 	(2)	 	 	 
    (3)	 	 	 
    (4)	 	 	(5)	 	 	(6)	 	 	(7)	 
	Buyer
  
 
	 	Address and
 Facsimile Number	 	 	Aggregate Principal Amount of Notes	 	 	Number of Warrant Shares	 	 	Purchase Price	 	 	Legal Representative’s Address and Facsimile Number	 	 	Closing Date	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
TOTAL
	 		     	 	 		    	 	 		     	 	 		     	 	 		      	 	 		       	 








 





  






     


     


    

 





EXHIBITS


 


	Exhibit A	Form of Note
	Exhibit B	Form of Warrant
	Exhibit C	Guaranty Amendment
	Exhibit D	Security Amendment Agreement
	Exhibit E	Form of Joinder Agreement
	Exhibit F	Form of Subsequent Closing Notice
	Exhibit G	Form of Investor Questionnaire
	Exhibit H	Form of Irrevocable Transfer Agent Instructions
	Exhibit I	Form of Secretary’s Certificate
	Exhibit J	Form of Compliance Certificate
	Exhibit K-1	September 2016 Subordination Agreement Amendment
	Exhibit K-2	Termination Agreement 


 


SCHEDULES


 


	Schedule 3(a)	Organization and Qualification
	Schedule 3(f)	Acknowledgment Regarding Buyer’s Purchase of Securities
	Schedule 3(j)	SEC Documents; Financial Statements
	Schedule 3(k)	Absence of Certain Changes
	Schedule 3(m)	Conduct of Business; Regulatory Permits
	Schedule 3(o)	Sarbanes-Oxley Act
	Schedule 3(p)	Transactions With Affiliates
	Schedule 3(q)	Equity Capitalization
	Schedule 3(r)	Indebtedness and Other Contracts
	Schedule 3(s)	Absence of Litigation
	Schedule 3(bb)	Internal Accounting and Disclosure Controls
	Schedule 3(dd)	Ranking of Notes
	Schedule 3(oo)	No Disqualification Events
	Schedule 4(s)	Pledges of Intellectual Property Rights



 








     


     


    

 


EXHIBIT
A


 


Form
of Note


 


[Omitted]


 




    Exhibit
                                         A


     


    

 


EXHIBIT
B


 


Form
of Warrant


 


[Omitted]


 




    Exhibit
                                         B


     


    

 


EXHIBIT
C


 


Form
of Guaranty Amendment


 




    Exhibit
                                         C


     


    

 


SECOND
AMENDMENT TO GUARANTY


 


THIS
SECOND AMENDMENT TO GUARANTY (this “Amendment”) is made and entered into as of June 5, 2018 by and between
Ener-Core Power, Inc., a Delaware corporation (the “Guarantor”) and the undersigned, and, in accordance with
the terms hereof, amends that certain Guaranty, dated as of November 23, 2016 (as amended to date, the “Guaranty”),
made by the Guarantor, in favor of the “Buyers” party to that certain Securities Purchase Agreement, dated as of November
23, 2016 (the “November 2016 SPA”), by and among Ener-Core, Inc., a Delaware corporation (the “Company”),
and the investors listed on the Schedule of Buyers attached thereto. Capitalized terms used herein but not otherwise defined herein
shall have the meanings ascribed to such terms in the Guaranty.


 


RECITALS


 


WHEREAS,
pursuant to Section 12(b) of the Guaranty, provisions of the Guaranty may be amended and the observance thereof may be waived
only with the written consent of the Company and the Required Holders (as defined in the November 2016 SPA);


 


WHEREAS,
any amendment effected in accordance with Section 12(b) shall be binding upon each Buyer and holder of Securities and the Company;
and


 


WHEREAS,
the parties hereto with to amend the Guaranty as set forth below.


 


AGREEMENT


 


NOW,
THEREFORE, in consideration of the mutual covenants herein contained and other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the parties, intending to be legally bound, agree as follows:


 


ARTICLE
I


 


AMENDMENTS
TO THE GUARANTY


 


Section
1.1The third paragraph under the WITNESSETH section of the Guaranty is hereby deleted, and the following paragraphs shall
be added after the second paragraph under the WITNESSETH section of the Guaranty:


 


“WHEREAS,
the Company and each party listed as a “Buyer” on the Schedule of Buyers (each a “June 2018 Buyer”,
and collectively, the “June 2018 Buyers”) attached to that certain Securities Purchase Agreement dated June
5, 2018 (as amended, restated or modified from time to time, the “June 2018 SPA”) are parties to the June 2018
SPA, pursuant to which, among other things, the June 2018 Buyers shall purchase from the Company certain senior secured convertible
“Notes” (as defined in the June 2018 SPA) (collectively, the “June 2018 Notes”).”


 


“WHEREAS,
(a) each of the November 2016 Buyers, the September 2017 Buyers and the June 2018 Buyers are hereinafter referred to individually
as a “Buyer” and collectively, the “Buyers”, (b) the November 2016 Notes, the September
2017 Notes and the June 2018 Notes are hereinafter referred to collectively as the “Notes”, (c) the November
2016 SPA, the September 2017 SPA and the June 2018 SPA are hereinafter referred to collectively as the “Securities Purchase
Agreement”, and (d) collectively, the (1) November 2016 SPA, the November 2016 Notes and each of the other agreements
entered into by the parties thereto in connection with the transactions contemplated by the November 2016 SPA, (2) the September
2017 SPA, the September 2017 Notes and each of the other agreements entered into by the parties thereto in connection with the
transactions contemplated by the September 2017 SPA, and (3) the June 2018 SPA, the June 2018 Notes and each of the other agreements
entered into by the parties thereto in connection with the transactions contemplated by the June 2018 SPA, are hereinafter referred
to as the “Combined Transaction Documents”.”


 






    - 1 -


     


    




 


ARTICLE
II


 


MISCELLANEOUS


 


Section
2.1Effect of this Amendment. This Amendment shall form a part of the Guaranty for all purposes, and each party thereto
and hereto shall be bound hereby. From and after the execution of this Amendment by the parties hereto, any reference to the Guaranty
shall be deemed a reference to the Guaranty as amended hereby. This Amendment shall be deemed to be in full force and effect only
from and after both the execution of this Amendment by the parties hereto and the execution of one or more agreements substantially
identical to this First Amendment to Guaranty by the Company and each of the other Required Holders. Except as specifically amended
as set forth herein, each term and condition of the Guaranty shall continue in full force and effect.


 


Section
2.2Entire Agreement. This Amendment, together with the Guaranty, contains the entire agreement of the parties and supersedes
any prior or contemporaneous written or oral agreements between them concerning the subject matter of this Amendment.


 


Section
2.3Governing Law. This Amendment shall be governed by the internal law of the State of New York.


 


Section
2.4Counterparts. This Amendment may be executed in any number of counterparts and by different parties hereto in separate
counterparts, each of which when so executed and delivered shall be deemed an original, but all such counterparts together shall
constitute but one and the same instrument; signature pages may be detached from multiple separate counterparts and attached to
a single counterpart so that all signature pages are physically attached to the same document. This Amendment may be executed
by fax or electronic mail, in PDF format, and no party hereto may contest this Amendment’s validity solely because a signature
was faxed or otherwise sent electronically.


 


[Signature
Pages Follow]





 




    - 2 -


     


    

 


IN
WITNESS WHEREOF, the parties hereto have executed this Second Amendment to Guaranty as of the date first above written.


 





	 	ENER-CORE POWER, INC., a Delaware corporation
	 	 	 
	 	By:	 
	 	Name:  	Domonic J. Carney
	 	Title: 	Chief Financial Officer




 





	 	Address for Notices:
	 	 
	 	8965 Research Drive, Suite 100
	 	Irvine, California 92618
	 	Attention: Mr. Domonic J. Carney
	 	Facsimile: (949) 616-3399
	 	Email: DJ.Carney@ener-core.com




 





Second
Amendment to Guaranty













     


     


    

 


IN
WITNESS WHEREOF, the parties hereto have executed this Second Amendment to Guaranty as of the date first above written.


 





	 	[_______]	 
	 	 
	 	By:	   
	 	 	Name:
	 	 	Title:







 




     


     


    

 


EXHIBIT
D


 


Security
Amendment Agreement


 


[Omitted]


 




    Exhibit
                                         D


     


    

 


EXHIBIT
E


 


Form
of Joinder Agreement


 




    Exhibit
                                         E


     


    

 


JOINDER
AGREEMENT 


 


Reference
is hereby made to that certain Securities Purchase Agreement by and among Ener-Core, Inc., a Delaware corporation, with headquarters
located at 8965 Research Drive, Irvine, California 92618 (the “Company”), and the Initial Buyers (as defined
therein), dated as of June 5, 2018, and attached hereto as Exhibit A (the “Purchase Agreement”). Capitalized
terms not defined herein shall be as defined in the Purchase Agreement.


 


(a) The
party signatory hereto as the “Subsequent Buyer” (the “Subsequent Buyer”) desires to purchase the
Subsequent Note for the applicable Subsequent Purchase Price, as set forth under the signature line of the Subsequent Buyer attached
hereto. The date of the Subsequent Closing (the “Subsequent Closing Date”) shall occur on the date hereof.


 


(b) The
Subsequent Buyer acknowledges, represents and warrants that it has reviewed the Purchase Agreement, and subject to the satisfaction
(or waiver) of the conditions of Sections 1(c), 6(b) and 7(b), as of the Subsequent Closing Date, the Subsequent Buyer shall be
a “Buyer” and a “Subsequent Buyer”, in each case as defined in the Purchase Agreement, with all the rights
and obligations of a “Buyer” and a “Subsequent Buyer” set forth therein.


 


(c) Having
read the representations in Section 2 of the Purchase Agreement, the Subsequent Buyer hereby makes the representations and warranties
contained in Section 2 of the Purchase Agreement, as set forth therein, to the Company as of the date hereof and as of the Subsequent
Closing Date.


 


(d) With
regards to the Company’s representations and warranties in Section 3 of the Purchase Agreement, the Company hereby makes
the representations and warranties contained in Section 3 of the Purchase Agreement, as set forth therein, to the Subsequent Buyer
as of the date hereof and as of the Subsequent Closing Date, as modified or affected by the schedules attached to the Purchase
Agreement.


 


(e) The
Subsequent Buyer has executed and delivered to the Company an investor questionnaire, substantially in the form attached hereto
as Attachment 1, which such Subsequent Buyer represents and warrants is true, correct and complete. The Subsequent Buyer
agrees to furnish the Company with any additional information it reasonably requests to ensure compliance with applicable federal
and state securities laws in connection with the purchase of the Subsequent Note.


 


(f) This
Agreement may be executed in two or more identical counterparts, all of which shall be considered one and the same agreement and
shall become effective when counterparts have been signed by each party and delivered to the other party; provided that a facsimile
or “.pdf” electronic format signature shall be considered due execution and shall be binding upon the signatory thereto
with the same force and effect as if the signature were an original, not a facsimile or “.pdf” electronic format signature.


 


(g) All
questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal
laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the
State of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the
State of New York. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting
in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or with
any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit,
action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action
or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party
hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding
by mailing a copy thereof to such party at the address for such notices to it under this Agreement and agrees that such service
shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit
in any way any right to serve process in any manner permitted by law. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY
HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT
OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.


 


[Signature
Page Follows]


 




    - 1 -


     


    

 


IN
WITNESS WHEREOF, the Subsequent Buyer and the Company have caused their respective signature page to this Agreement to be
duly executed, in counterparts, as of the date set forth below.


 


	 	 	SUBSEQUENT
    BUYER:
	 	 	 
	 	 	By:	
	 	 	 	Name:
    
	 	 	 	Title:
    
	 	 	
	 	 	Aggregate
    Principal Amount of Subsequent Note Purchased:
	 	 	
	 	 	 
	 	 	Subsequent
    Purchase Price:
	 	 	
	 	 	 
	 	 	 
	 	 	Address:
	 	 	
	 	 	
	 	 	 
	 	 	 
	 	 	Attention:
	 	 	
	 	 	 
	 	 	Facsimile:
	 	 	
	 	 	 
	 	 	Telephone:
	 	 	
	 	 	 
	 	 	Email:
	 	 	
	 	 	 


 


Accepted
by:


 


	COMPANY:	 
	 	 
	ENER-CORE,
    INC.	 
	 	 	 
	By:		 
	 	Name:
    Domonic J. Carney	 
	 	Title:
    Chief Financial Officer	 



 


Signature Page to Joinder Agreement


 



     


     


    

 


EXHIBITS


 


	Exhibit A:	Purchase Agreement




	Attachment 1: 	Investor Questionnaire




 




     


     


    

 


EXHIBIT
A


 


Purchase
Agreement


 




    Exhibit
                                         A


     


    

 


ATTACHMENT
1


 


Investor
Questionnaire


 




     


     


    

 


EXHIBIT
F


 


Form
of Subsequent Closing Notice


 




    Exhibit
                                         F


     


    

 


SUBSEQUENT
CLOSING NOTICE


 


Reference
is hereby made to that certain Securities Purchase Agreement by and among Ener-Core, Inc., a Delaware corporation, with headquarters
located at 8965 Research Drive, Irvine, California 92618 (the “Company”), and the Initial Buyers (as defined
therein), dated as of June 5, 2018, attached hereto as Exhibit A (the “Purchase Agreement”). Capitalized
terms not defined herein shall be as defined in the Purchase Agreement.


 


(h) The
party signatory hereto as the “Subsequent Buyer” (the “Subsequent Buyer”) is an Initial Buyer under
the Purchase Agreement, pursuant to which it purchased an Initial Note for the Initial Purchase Price at the Initial Closing.


 


(i) The
Subsequent Buyer desires to purchase a Subsequent Note for the applicable Subsequent Purchase Price, as set forth under the signature
line of the Subsequent Buyer attached hereto. The date of the Subsequent Closing (the “Subsequent Closing Date”)
shall occur on the date hereof.


 


(j) The
Subsequent Buyer acknowledges, represents and warrants that it has reviewed the Purchase Agreement, and subject to the satisfaction
(or waiver) of the conditions of Sections 1(c), 6(b) and 7(b), as of the Subsequent Closing Date, the Subsequent Buyer shall be
a “Subsequent Buyer”, as defined in the Purchase Agreement, with all the rights and obligations of a “Subsequent
Buyer” set forth therein.


 


(k) Having
read the representations in Section 2 of the Purchase Agreement, the Subsequent Buyer hereby makes the representations and warranties
contained in Section 2 of the Purchase Agreement, as set forth therein, to the Company as of the Subsequent Closing Date.


 


(l) With
regards to the Company’s representations and warranties in Section 3 of the Purchase Agreement, the Company hereby makes
the representations and warranties contained in Section 3 of the Purchase Agreement, as set forth therein, to the Subsequent Buyer
as of the Subsequent Closing Date, as modified or affected by the schedules attached to the Purchase Agreement.


 


(m) The
Subsequent Buyer agrees to furnish the Company with any additional information it reasonably requests to ensure compliance with
applicable federal and state securities laws in connection with the purchase of the Subsequent Note. 


 


(n) This
Agreement may be executed in two or more identical counterparts, all of which shall be considered one and the same agreement and
shall become effective when counterparts have been signed by each party and delivered to the other party; provided that a facsimile
or “.pdf” electronic format signature shall be considered due execution and shall be binding upon the signatory thereto
with the same force and effect as if the signature were an original, not a facsimile or “.pdf” electronic format signature.


 


(o) All
questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal
laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the
State of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the
State of New York. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting
in The City of New York, Borough of Manhattan, for the adjudication of any dispute hereunder or in connection herewith or with
any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit,
action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action
or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party
hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding
by mailing a copy thereof to such party at the address for such notices to it under this Agreement and agrees that such service
shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit
in any way any right to serve process in any manner permitted by law. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY
HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT
OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.


 


[Signature
Page Follows]


 




    - 1 -


     


    

 


IN
WITNESS WHEREOF, the Subsequent Buyer and the Company have caused their respective signature page to this Agreement to be
duly executed, in counterparts, as of the date set forth below.


 


	 	SUBSEQUENT
    BUYER:
	 	 	
	 	By:	
	 	 	Name:
    
	 	 	Title:
    
	 	
	 	Aggregate
    Principal Amount of Subsequent Note Purchased:
	 	
	 	Subsequent
    Purchase Price:
	 	
	 	 
	 	Address:
	 	
	 	
	 	
	 	 
	 	Attention:
	 	
	 	 
	 	Facsimile:
	 	
	 	 
	 	Telephone:
	 	
	 	 
	 	Email:
	 	


 


Accepted
by:


 


	COMPANY:	 
	 	 
	ENER-CORE,
    INC.	 
	 	 	 
	By:		 
	 	Name:
    Domonic J. Carney	 
	 	Title:  Chief
    Financial Officer	 



 





Signature
Page to Subsequent Closing Notice


 








     


     


    

 


EXHIBITS


 


	Exhibit
    A:	Purchase
    Agreement




 




     


     


    

 


EXHIBIT
A


 


Purchase
Agreement


 




    Exhibit
                                         A


     


    

 


EXHIBIT
G


 


Form
of Investor Questionnaire


 




    Exhibit
                                         G


     


    

 


Ener-Core,
Inc.


 


ACCREDITED
INVESTOR QUESTIONNAIRE


 


PLEASE
READ CAREFULLY 


 


This
investor questionnaire is being submitted by the undersigned to Ener-Core, Inc., a Delaware corporation (“Issuer”)
in order to determine whether the undersigned qualifies as an “accredited investor” under Regulation D promulgated
under the Securities Act of 1933 (the “Securities Act”). The undersigned understands that Issuer will rely
upon the accuracy and completeness of the information provided in this questionnaire in determining whether certain issuances
of securities of Issuer may qualify for an exemption from the registration requirements of the Securities Act. Please return your
completed questionnaire and executed signature page hereto with your signature page to the Securities Purchase Agreement.


 


I. Accredited
Investor: The undersigned hereby represents and warrants that the undersigned is an “accredited investor” under
Regulation D promulgated under the Securities Act. ☐ (please check box if you are an accredited investor)


 


The
undersigned is an “accredited investor” for one of the following reasons (check whichever applies):


 


Individuals.
If the undersigned is a natural person (ignoring any revocable grantor trust), then the undersigned hereby represents and
warrants as follows (check whichever applies):


 


		☐	The
                                         undersigned is a director, executive officer, or general partner of the Issuer, or a
                                         director, executive officer, or general partner of a general partner of the Issuer.



 


		☐	The
                                         undersigned has a net worth (either individually or jointly with the undersigned’s
                                         spouse) in excess of $1,000,000 (see calculation guidance below).



 


		☐	The
                                         undersigned (i) either (A) had an individual annual income (exclusive of spousal income)
                                         in excess of $200,000 or (B) had a joint income with the undersigned’s spouse in
                                         excess of $300,000 in each of the two preceding tax years, and (ii) reasonably expects
                                         to have the same income level (individually or jointly, as applicable) in the current
                                         tax year (see calculation guidance below).



 


The
term “net worth” means the excess of total assets over total liabilities. In calculating “net worth,”
the Investor must exclude the value of the Investor’s principal residence as an asset. The value of the principal residence
should be calculated as the fair market value of the residence, less any debt secured by such residence. To the extent that the
amount of debt secured by the primary residence exceeds the fair market value of such residence, this excess amount of debt should
be considered a liability for purposes of calculating net worth. The term “individual income” means adjusted
gross income, as reported for federal income tax purposes, less any income attributable to a spouse or property owned by a spouse,
increased by the amount (if not attributable to a spouse or property owned by a spouse) of any tax-exempt shares received, losses
claimed as a partner in an entity treated as a partnership for tax purposes, any deduction claimed for depletion, any deduction
for long term capital gains. The term “joint income” is defined in the same manner as “individual income,”
except that income attributable to a spouse or property owned by a spouse is included.


 






    - 1 -


     


    




 


Trusts.
If the undersigned is a trust, then the undersigned hereby represents and warrants that the undersigned is (check whichever
applies):


 


		☐	A
                                         revocable trust (such as a living trust) or a trust formed for the purpose of acquiring
                                         the securities and for which, in either case, each grantor is an accredited investor.
                                         Indicate each grantor and the category that describes how each such grantor itself is
                                         qualified as an “accredited investor”:



 


____________________________________________________________


 


____________________________________________________________


 


		☐	A
                                         trust which has total assets in excess of $5,000,000, not formed for the specific purpose
                                         of acquiring securities, whose purchase is directed by a “sophisticated person”
                                         within the meaning of Regulation D who has such knowledge and experience in financial
                                         and business matters as to be capable of evaluating the merits and risks of an investment
                                         in the proposed investment.



 


Entities.
If the undersigned is a corporation, partnership, limited liability company or trust, then the undersigned hereby represents
and warrants that the undersigned is (check whichever applies):


 


		☐	an
                                         employee benefit plan within the meaning of the Employment Retirement Income Security
                                         Act of 1974, as amended (“ERISA”), if either:



 


		a.	the
                                         investment decision is made by a plan fiduciary, as defined in ERISA § 3(21), that
                                         is a bank, savings and loan association, insurance company or registered investment adviser,



 


		b.	an
                                         employee benefit plan with total assets in excess of $5,000,000, or



 


		c.	a
                                         self-directed plan with investment decisions made solely by persons who are accredited
                                         investors as defined in Rule 501(a) promulgated under the Securities Act.



 


		☐	one
                                         of the following entities, not formed for the specific purpose of acquiring securities
                                         and having total assets in excess of $5,000,000:



 





		a.	an
                                         organization described in Section 501(c)(3) of the Internal Revenue Code of 1986, as
                                         amended;



 


		b.	a
                                         corporation, partnership, or limited liability company; or



 


		c.	a
                                         Massachusetts or similar business trust.



 


		☐	a
                                         bank as defined in Section 3(a)(2) of the Securities Act, or any savings and loan association
                                         or other institution as defined in Section 3(a)(5)(A) of the Securities Act, whether
                                         acting in its individual or a fiduciary capacity.







 






    - 2 -


     


    




 


		☐	a
                                         broker or dealer registered pursuant to Section 15 of the Securities Exchange Act of
                                         1934, as amended.



 


		☐	an
                                         insurance company as defined in Section 2(13) of the Securities Act.



 


		☐	an
                                         investment company registered under the Investment Company Act of 1940 (the “Investment
                                         Company Act”), or a business development company as defined in Section 2(a)(48)
                                         of the Investment Company Act.



 


		☐	a
                                         Small Business Investment Company licensed by the U.S. Small Business Administration
                                         under Section 301(c) or (d) of the Small Business Investment Act of 1958.



 


		☐	a
                                         plan established and maintained by a state, its political subdivisions, or any agency
                                         or instrumentality of a state or its political subdivisions for the benefit of its employees
                                         with total assets in excess of $5,000,000.



 


		☐	a
                                         private business development company as defined in Section 202(a)(22) of the Investment
                                         Advisers Act of 1940, as amended.



 


		☐	An
                                         entity in which all of the equity owners are “accredited investors”
                                         under any of the above categories (including the categories for individuals and trusts
                                         listed in the preceding Sections 1(a) and 1(b)). If the undersigned belongs
                                         to this investor category only, list the equity owners of the undersigned, and the “accredited
                                         investor” category which each such equity owner satisfies:



 


____________________________________________________________


 


____________________________________________________________


 


If
the Issuer needs to verify my status as an accredited investor or has any questions with respect to such status, I hereby consent
to request that the Issuer contact:


 





	Name:	 	 
	 	 	 
	Firm name:	 	 
	 	 	 
	Email:	 	 
	 	 	 
	Telephone:	 	 
	 	 	 
	Address:	 	 


 


	Relationship to accredited investor:	 	 




 














 


II. Not
an Accredited Investor: The undersigned hereby represents and warrants that the undersigned does NOT meet one of the foregoing
tests and does not qualify as an “accredited investor” under Regulation D promulgated under the Securities Act. ☐
(please check box if you are not an accredited investor)


 


Signature
Page Follows


 




    - 3 -


     


    




 


The
undersigned has/have executed this Accredited Investor Questionnaire effective as of the date set forth below.


 





	 	FOR INDIVIDUALS 
	 	 	 
	 	By:	   
	 	 	Signature
	 	 	 
	 	Name:	 
	 	 	 
	 	Date:	 
	 	 	 
	 	By:	  
	 	 	Signature
	 	 	 
	 	Name:	 
	 	 	 
	 	Date:	 







 


NOTE:
                                         IF YOU ARE PURCHASING SHARES WITH YOUR SPOUSE, YOU MUST BOTH SIGN THIS SIGNATURE PAGE.


 


IF
YOU ARE PURCHASING SHARES WITH ANOTHER PERSON NOT YOUR SPOUSE, YOU MUST EACH FILL OUT A SEPARATE QUESTIONNAIRE.





 





	 	FOR ENTITIES 
	 	 
	 	 
	 	Name
    of Entity (i.e., corporation, partnership, trust, LLC etc.)
	 	 	 
	 	By:	 
	 	 	Signature
	 	 	 
	 	Name:	 
	 	 	 
	 	Title:	 
	 	 	 
	 	Date:	 







 




    - 4 -


     


    

 


EXHIBIT
H


 


Form
of Irrevocable Transfer Agent Instructions


 




    Exhibit
                                         H


     


    

 


TRANSFER
AGENT INSTRUCTIONS


 


ENER-CORE,
INC. 


 


June
5, 2018


 


VStock
Transfer, LLC


18
Lafayette Place


Woodmere,
New York 11598

Telephone: (212) 828-8436


Facsimile:
(646) 536-3179


Attention:
Yoel Goldfeder


E-mail:
yoel@vstocktransfer.com


 


Ladies
and Gentlemen:


 


Reference
is made to that certain Securities Purchase Agreement, dated as of June 5, 2018 (the “Agreement”), by and among
Ener-Core, Inc., a Delaware corporation (the “Company”), and the investors named on each Buyer’s signature
page to the Agreement and the Schedule of Buyers attached thereto (collectively, the “Holders”), pursuant to
which the Company is issuing to the Holders: (i) convertible senior secured promissory notes (the “Notes”),
which Notes shall be convertible into shares of common stock of the Company, par value $0.0001 per share (the “Common
Stock”), and (ii) warrants (the “Warrants”), which are exercisable to purchase shares of Common
Stock.


 


This
letter shall serve as our irrevocable authorization and direction to you (provided that you are the transfer agent of the Company
at such time):


 


		(i)	to
                                         issue shares of Common Stock upon conversion of the Notes (the “Conversion Shares”)
                                         to or upon the order of a Holder from time to time upon delivery to you of a properly
                                         completed and duly executed Conversion Notice, in the form attached hereto as Exhibit
                                         I, which has been acknowledged by the Company as indicated by the signature of a
                                         duly authorized officer of the Company thereon; and



 


		(ii)	to
                                         issue shares of Common Stock upon exercise of the Warrants (the “Warrant Shares”)
                                         to or upon the order of a Holder from time to time upon delivery to you of a properly
                                         completed and duly executed Exercise Notice, in the form attached hereto as Exhibit
                                         II, which has been acknowledged by the Company as indicated by the signature of a
                                         duly authorized officer of the Company thereon.



 


You
acknowledge and agree that so long as you have previously received (a) a written legal opinion from the Company’s legal
counsel that either (i) a registration statement covering resales of the Conversion Shares and/or Warrant Shares has been declared
effective by the Securities and Exchange Commission (“SEC”) under the Securities Act of 1933, as amended (the
“Securities Act”), or (ii) sales of the Conversion Shares and/or the Warrant Shares may be made in conformity
with Rule 144 under the Securities Act (“Rule 144”) and (b) if applicable, a copy of such registration statement,
then within three (3) business days of your receipt of a notice of transfer, Conversion Notice or Exercise Notice, you shall issue
the certificates representing the Conversion Shares and/or the Warrant Shares, as applicable, registered in the names of such
transferees, and such certificates shall not bear any legend restricting transfer of the Conversion Shares and/or the Warrant
Shares thereby and should not be subject to any stop-transfer restriction; provided, however, that if such Conversion Shares
and Warrant Shares are not registered for resale under the Securities Act or able to be sold under Rule 144, then the certificates
for such Conversion Shares and/or Warrant Shares shall bear the following legend:


 


THE
SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE
STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN
EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL,
IN FORM AND SUBSTANCE REASONABLY ACCEPTABLE TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD
PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH
A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.


 


[Remainder
of page left blank intentionally. Signatures follow.]


 




    - 1 -


     


    

 


Please
execute this letter in the space indicated to acknowledge your agreement to act in accordance with these instructions. Should
you have any questions concerning this matter, please contact me at 949-616-3300.


 





	 	Very truly yours,
	 	ENER-CORE,
    INC.
	 	 	 
	 	By:	 
	 	Name:	Domonic J. Carney
	 	Title:	Chief Financial Officer




 





THE
FOREGOING INSTRUCTIONS ARE


ACKNOWLEDGED
AND AGREED TO


 


this
___ day of June, 2018


 


VSTOCK
TRANSFER, LLC





 


	By: 	 	 
	Name:	Yoel Goldfeder	 
	Title:	Chief Executive Officer	 







 


Enclosures





Signature
Page to Transfer Agent Instructions













 







     


     


    

 


EXHIBIT
I


 


CONVERSION
NOTICE


 


ENER-CORE,
inc. 


 


Reference
is made to the convertible unsecured promissory note (the “Note”) issued to the undersigned by Ener-Core, Inc.,
a Delaware corporation (the “Company”). In accordance with and pursuant to the Note, the undersigned hereby
elects to convert the Conversion Amount (as defined in the Note) of the Note indicated below into shares of Common Stock par value
$0.0001 per share (the “Common Stock”) of the Company, as of the date specified below.


 


	Date
    of Conversion:	 
	Aggregate
                                         Conversion Amount to be converted:
	 


 


Please
confirm the following information:






 


	Conversion
    Price:	 
	Number
                                         of shares of Common Stock to be issued:
	 





 


Please
issue the Common Stock into which the Note is being converted in the following name and to the following address:


 


	Issue
    to:	 
	 	 
	 	 
	 	 
	 	 
	

        Facsimile
        Number and E-mail Address:
	 
	 	 
	 	 



 


	Authorization:	 	 
	By:	 	 
	Title:	 	 
	Dated:	 	 


 


	Account
    Number (if book entry transfer):	 
	Transaction
                                         Code Number (if book entry transfer):
	
	Installment
    Amounts to be reduced and amount of reduction:	 



 



    Exhibit
                                         I


     


    

 


 ACKNOWLEDGMENT


 


The
Company hereby acknowledges this Conversion Notice and hereby directs VStock Transfer, LLC to issue the above indicated number
of shares of Common Stock in accordance with the Transfer Agent Instructions dated June 5, 2018 from the Company and acknowledged
and agreed to by VStock Transfer, LLC.


 


	 	ENER-CORE,
    INC.
	 	 	 
	 	By:	  
	 	Name:	 
	 	Title:	 



 



     


     


    

 


EXHIBIT
II


 


EXERCISE
NOTICE


 


TO
BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS


WARRANT
TO PURCHASE COMMON STOCK


 


ENER-CORE,
inc. 


 


The
undersigned holder hereby exercises the right to purchase _________________ of the shares of Common Stock (“Warrant Shares”)
of Ener-Core, Inc., a Delaware corporation (the “Company”), evidenced by the attached Warrant to Purchase Common
Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings
set forth in the Warrant.


 


1. Form
of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as:


 


____________
a “Cash Exercise” with respect to _________________ Warrant Shares; and/or


 


____________
a “Cashless Exercise” with respect to _______________ Warrant Shares.


 


2. Payment
of Exercise Price. In the event that the holder has elected a Cash Exercise with respect to some or all of the Warrant Shares
to be issued pursuant hereto, the holder shall pay the Aggregate Exercise Price in the sum of $___________________ to the Company
in accordance with the terms of the Warrant.


 


3. Delivery
of Warrant Shares. The Company shall deliver to the holder __________ Warrant Shares in accordance with the terms of the Warrant.


 


Date:
_______________ __, ______


 


	 	 	 	 
	Name
    of Registered Holder
	 	 	 	 
	By:	 	 	 
	 	Name:	 	 
	 	Title:	 	 


 




    Exhibit
                                         II


     


    

 


 ACKNOWLEDGMENT


 


The
Company hereby acknowledges this Exercise Notice and hereby directs VStock Transfer, LLC to issue the above indicated number of
shares of Common Stock in accordance with the Transfer Agent Instructions dated June 5, 2018 from the Company and acknowledged
and agreed to by VStock Transfer, LLC.


 


	 	ENER-CORE,
    INC.
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 



 



     


     


    

 


SCHEDULE
OF BUYERS 


 


 





	(1)	 	(2)	 	 	 
    (3)	 	 	 
    (4)	 	 	(5)	 	 	(6)	 
	Buyer
 
 
	 	Address and
 Facsimile Number	 	 	Aggregate Principal Amount of Notes	 	 	Number of Warrant Shares	 	 	Purchase Price	 	 	Legal Representative’s Address and Facsimile Number	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
TOTAL
	 		     	 	 	$	    	 	 		     	 	 	$	     	 	 		      	 


 





 






    - 2 -


     


    

 


EXHIBIT
I


 


Form
of Secretary’s Certificate





 






    Exhibit
                                         I


     


    

 


SECRETARY’S
CERTIFICATE


 


Pursuant
to Section 7(a)(v) of the Securities Purchase Agreement, dated as of June 5, 2018 (the “Purchase Agreement”),
by and among Ener-Core, Inc., a Delaware corporation (the “Company”), and the investors set forth on the Schedule
of Buyers attached to the Purchase Agreement (each, a “Buyer” and collectively, the “Buyers”),
Domonic J. Carney, the Secretary of the Company, hereby certifies, in his capacity as an officer of the Company and as an officer
of Ener-Core Power, Inc., a Delaware corporation (the “Subsidiary”), and not individually, on behalf of the
Company and the Subsidiary, respectively, that:


 


		1.	Attached
                                         hereto as Exhibit A are true, correct and complete copies of resolutions duly
                                         adopted by the Board of Directors (the “Board”) of the Company and
                                         the Board of Directors (the “Subsidiary Board”) of the Subsidiary
                                         (collectively, the “Board Resolutions”), approving the matters contemplated
                                         by Section 3(b) of the Purchase Agreement. Such resolutions have not been amended, modified,
                                         supplemented, annulled or revoked and are in full force and effect in the form adopted,
                                         and are the only resolutions adopted by the Board and the Subsidiary Board or by any
                                         committee of or designated by the Board and Subsidiary Board relating to (i) the transactions
                                         contemplated by the Board Resolutions, and (ii) the transaction agreements identified
                                         in the Board Resolutions. All members of the Board and Subsidiary Board were, at the
                                         time of their approval of the resolutions attached hereto as Exhibit A, respectively,
                                         and have been at all times thereafter, duly elected, qualified, and acting directors
                                         of the Company and the Subsidiary, respectively.



 


		2.	Attached
                                         hereto as Exhibit B are true, correct and complete copies of the Certificate of
                                         Incorporation of the Company, as currently in effect (the “Certificate”),
                                         and the Certificate of Incorporation of the Subsidiary, as currently in effect (the “Subsidiary
                                         Certificate”). The Certificate has not been amended subsequent to September
                                         3, 2015, and no action has been taken by the Company, its stockholders, directors, or
                                         officers to authorize or effect any further amendment or modification to such Certificate,
                                         and the Subsidiary Certificate has not been amended subsequent to June 28, 2013, and
                                         no action has been taken by the Subsidiary, its stockholders, directors, or officers
                                         to authorize or effect any further amendment or modification to such Subsidiary Certificate.



 


		3.	Attached
                                         hereto as Exhibit C are true, correct and complete copies of the Bylaws of the
                                         Company, as currently in effect (the “Bylaws”), and the Bylaws of
                                         the Subsidiary, as currently in effect (the “Subsidiary Bylaws”).
                                         The Bylaws have not been amended subsequent to September 3, 2015, and no action has been
                                         taken by the Company, its stockholders, directors, or officers to authorize or effect
                                         any further amendment or modification to such Bylaws, and the Subsidiary Bylaws have
                                         not been amended subsequent to August 1, 2012, and no action has been taken by the Subsidiary,
                                         its stockholders, directors, or officers to authorize or effect any further amendment
                                         or modification to such Subsidiary Bylaws.



 


Capitalized
terms contained herein and not otherwise defined shall be interpreted in accordance with their meaning in the Purchase Agreement.


 


[Signature
Page Follows]


 






    - 1 -


     


    

 





IN
WITNESS WHEREOF, the undersigned has signed his name to this Secretary’s Certificate this June 5, 2018.


 


	 	By:	
	 	Name:	Domonic
    J. Carney
	 	Title:	Secretary


 





Signature
Page to Secretary’s Certificate


 






     


     


    

 





EXHIBIT
A


 


Board
Resolutions


 






    Exhibit
                                         A


     


    

 





Subsidiary
Board Resolutions


 






     


     


    

 





EXHIBIT
B


 


Certificates
of Incorporation





 






    Exhibit
                                         B


     


    

 


EXHIBIT
C


 


Bylaws





 






    Exhibit
                                         C


     


    

 


EXHIBIT
J


 


Form
of Compliance Certificate





 






    Exhibit
                                         J


     


    

 


COMPLIANCE
CERTIFICATE


 


Pursuant
to Section 7(a)(vi) of the Securities Purchase Agreement, dated as of June 5, 2018 (the “Purchase Agreement”),
by and among Ener-Core, Inc., a Delaware corporation (the “Company”), and the investors set forth on the Schedule
of Buyers attached to the Purchase Agreement (each, a “Buyer” and collectively, the “Buyers”),
Domonic J. Carney, the Chief Financial Officer of the Company, hereby certifies, in his capacity as an officer of the Company
and not individually, on behalf of the Company and to the best of his knowledge after a reasonable investigation that:


 


1.
The representations and warranties of the Company contained in Section 3 of the Purchase Agreement are true and correct in
all material respects (except for those representations and warranties that are qualified by materiality or Material Adverse
Effect, which shall be true and correct in all respects) as of the date when made and as of the Closing Date as though made
at that time (except for representations and warranties that speak as of a specific date which shall be true and correct as
of such specified date).


 


2.
The Company has performed, satisfied and complied in all respects with the covenants, agreements and conditions required by
the Transaction Documents to be performed, satisfied or complied with by the Company at or prior to the Closing
Date.


 


Capitalized
terms contained herein and not otherwise defined shall be interpreted in accordance with their meaning in the Purchase Agreement.


 


[Signature
Page Follows]


 






    - 1 -


     


    

 





IN
WITNESS WHEREOF, the undersigned has signed his name to this Compliance Certificate this June 5, 2018.


 





	 	By:	
	 	Name:	Domonic J. Carney
	 	Title:	Chief Financial Officer






 






     


     


    

 


EXHIBIT
K-1


 


September
2016 Subordination Agreement Amendment


 


[Omitted]


 






    Exhibit
                                         K-1


     


    

 



EXHIBIT
K-2


 


Termination
Agreement


 


[Omitted]





 






    Exhibit
                                         K-2


     


    

 


DISCLOSURE
SCHEDULES TO STOCK PURCHASE AGREEMENT


 


(Note:
Capitalized terms used herein and not otherwise defined shall have the definitions ascribed to such terms in the Agreement.)


 


Schedule
3(a)


(Organization
and Qualification)


 


Ener-Core
Power, Inc., a Delaware corporation


 


Schedule
3(f)


(Acknowledgment
Regarding Buyer’s Purchase of Securities)


 


Michael
Hammons, Chairman of the Company’s Board of Directors, has agreed to purchase an Initial Note in the principal amount of
$27,777.78 and a Warrant to purchase 55,556 Warrant Shares at the Initial Closing.


 


Schedule
3(j)


(SEC
Documents; Financial Statements)


 


None.


 


Schedule
3(k)


(Absence
of Certain Changes)


 


None.


 


Schedule
3(m)


(Conduct
of Business; Regulatory Permits)


 


None.


 


Schedule
3(o)


(Sarbanes-Oxley
Act)


 


None,
other than as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, and as described
in Schedule 3(aa) below.


 


Schedule
3(p)


(Transactions
With Affiliates)


 


Bridge
Note Financing


 


Between
September 2017 and March 2018, the Company sold and issued the Bridge Notes (as defined below). The following officers and director
purchased the Bridge Notes in the principal amount and related warrants in the quantities listed adjacent to their names in exchange
for cash or accrued compensation liabilities, as applicable. 





 






    - 1 -


     


    

 


	Name	 	Position with Company	 	Principal Amount of Notes 
 ($)
	 	 	Number of 
 Shares 
 Underlying Warrants 
 (#)
	 	 	Aggregate
 Purchase Price
 ($)
	 
	Domonic J. Carney	 	Chief Financial Officer	 	 	87,222	(1)	 	 	34,888	 	 	 	78,500	(2)
	Douglas Hamrin	 	Vice President, Engineering	 	 	25,278	(3)	 	 	10,111	 	 	 	22,750	(4)
	Mark Owen	 	Vice President of Operations and Business Development	 	 	34,722	(5)	 	 	13,888	 	 	 	31,250	(6)
	Michael Hammons	 	Director	 	 	5,556	(7)	 	 	2,222	 	 	 	5,000	 



 


	 	(1)	Consists
    of (i) Bridge Notes in the principal amounts of $27,778 and $8,333 purchased in the name of Charles Schwab & Co Inc. FBO
    Domonic Carney IRA in September and December 2017, respectively, over which Mr. Carney has investment control and which securities
    he may be deemed to beneficially own; and (ii) Bridge Notes in the principal amounts of $11,111 and $40,000 purchased
    in the name of Domonic J. Carney in January and March 2018, respectively.
	 	 	 
	 	(2)	Includes
    $36,000 in forgiveness of accrued payroll liabilities owed to Mr. Carney as of March 26, 2018.
	 	 	 
	 	(3)	Consists
    of a Bridge Note in the principal amount of $25,278 purchased in March 2018.
	 	 	 
	 	(4)	Consists
    of $22,750 in forgiveness of accrued payroll liabilities owed to Mr. Hamrin as of March 26, 2018.
	 	 	 
	 	(5)	Consists
    of Bridge Notes in the principal amounts of $8,333 and $26,389 purchased in December 2017 and March 2018, respectively.
	 	 	 
	 	(6)	Includes
    $23,750 in forgiveness of accrued payroll liabilities owed to Mr. Owen as of March 26, 2018.
	 	 	 
	 	(7)	Consists
    of a Bridge Note in the principal amount of $5,556 purchased in November 2017.


 


Indemnification
Agreements


 


The
Certificate of Incorporation and Bylaws require the Company to indemnify its directors to the fullest extent permitted by Delaware
law. In addition, the Company has entered indemnification agreements with each of its directors and officers.


 


See
also Schedule 3(f).


 






    - 2 -


     


    

 


Schedule
3(q)


(Equity
Capitalization)


 


		(ii)	Outstanding
                                         options, warrants, scrip, rights to subscribe to, calls or commitments of any character
                                         whatsoever relating to, or securities or rights convertible into, or exercisable or exchangeable
                                         for, any shares of capital stock of the Company or any of its Subsidiaries, or contracts,
                                         commitments, understandings or arrangements by which the Company or any of its Subsidiaries
                                         is or may become bound to issue additional shares of capital stock of the Company or
                                         any of its Subsidiaries or options, warrants, scrip, rights to subscribe to, calls or
                                         commitments of any character whatsoever relating to, or securities or rights convertible
                                         into, or exercisable or exchangeable for, any shares of capital stock of the Company
                                         or any of its Subsidiaries.



 


The
Company has agreed to issue to J Streicher a warrant to purchase a number of shares of Common Stock equal to: (i) 7% of the number
of shares of Common Stock issuable upon full conversion of the Notes (assuming conversion at the Initial Conversion Price) issued
to Buyers introduced to the Company by J Streicher and (ii) 3.5% of the number of shares of Common Stock issuable upon full conversion
of the Notes (assuming conversion at the Initial Conversion Price) issued to Buyers referred to J Streicher by the Company (the
“J Streicher Warrant”). J Streicher is only entitled to receive the J Streicher Warrant with respect to the
first $2.0 million in aggregate gross proceeds received by the Company upon the issuance of Notes under the Agreement. The term
of the J Streicher Warrant will be five years and it will include a cashless exercise provision and provide for piggyback registration
rights. The exercise price of Common Stock underlying the J Streicher Warrant will be $0.30 per share.


 


		(iv)	Financing
                                         statements securing obligations in any material amounts, either singly or in the aggregate,
                                         filed in connection with the Company or any of its Subsidiaries.



 


UCC
financing statements have been filed in connection with (i) the issuance by the Company of the 2015 Senior Notes (as defined below),
(ii) the CLA (as defined below) (iii) certain of its capital lease obligations.


 


		(v)	Agreements
                                         or arrangements under which the Company or any of its Subsidiaries is obligated to register
                                         the sale of any of their securities under the 1933 Act.



 


In
connection with the issuance and sale of the 2016 Senior Notes (as defined hereinafter), the Company entered into a Registration
Rights Agreement with the investors (the “Registration Rights Agreement”), pursuant to which the Company is
required to file one or more registration statements with the Securities and Exchange Commission (the “SEC”)
to register for resale by the investors the shares issuable upon conversion of the 2016 Senior Notes (the “Conversion
Shares”) and shares underlying certain warrants issued to the holders of the 2016 Senior Notes (the “Warrant
Shares”), and use its best efforts to maintain the effectiveness of such registration statement(s). The Company was
required to file the first such registration statement promptly following the initial closing date under the securities purchase
agreement for the 2016 Senior Notes, which occurred on December 2, 2016, but in no event later than the date that is forty-five
(45) days after such initial closing date. The Registration Rights Agreement required the Company to obtain effectiveness of the
required registration statement by specified deadlines contained in the Registration Rights Agreement. The Company complied with
its obligation to file such registration statement on January 17, 2017 and the SEC declared such registration statement effective
on February 21, 2017. In connection with the execution of the Transaction Documents, the required number of investors waived the
Company’s ongoing maintenance obligations pursuant to the Registration Rights Agreement with respect to such Conversion
Shares and Warrant Shares.


 


See
also Schedule 3(q)(ii).


 






    - 3 -


     


    

 


Schedule
3(r)


(Indebtedness
and Other Contracts)


 


Senior
Secured Notes


 


Convertible
Senior Notes payable consisted of the following as of December 31, 2017:


 


	 	 	Principal	 	 	Debt
 Discount
	 	 	Offering Costs	 	 	Net
 Total
	 
	Balance, December 31, 2016	 	$	9,191,000	 	 	$	(8,152,000	)	 	$	(409,000	)	 	$	630,000	 
	Bridge Notes Issued	 	 	1,556,000	 	 	 	(461,000	)	 	 	(51,000	)	 	 	1,044,000	 
	Amortization of Debt Discount and Offering Costs	 	 	—	 	 	 	4,114,000	 	 	 	213,000	 	 	 	4,327,000	 
	Conversion into Shares of Common Stock	 	 	(60,000	)	 	 	51,000	 	 	 	2,000	 	 	 	(7,000	)
	Balance, December 31, 2017	 	 	10,687,000	 	 	 	(4,448,000	)	 	 	(245,000	)	 	 	5,994,000	 
	Less: Current Portion	 	 	10,687,000	 	 	 	(4,448,000	)	 	 	(245,000	)	 	 	5,994,000	 
	Long Term Portion	 	$	—	 	 	$	—	 	 	$	—	 	 	$	—	 



 


In
the fourth quarter of 2016, the Company entered into a securities purchase agreement pursuant to which it issued a new series
of convertible senior secured notes (collectively, the “2016 Senior Notes”) and related warrants, and entered
into amendment agreements related to the convertible senior secured notes originally issued in April and May 2015 (the “2015
Senior Notes”) and the Convertible Unsecured Notes (as defined below). The Company issued and sold new 2016 Senior Notes
with a face value of $3,747,000 and an original issue discount of $375,000 for gross cash proceeds of $3,372,000. Additionally,
the Company amended and restated the 2015 Senior Notes, the aggregate principal amount of which was $5,000,000 prior to such amendment
and restatement. Upon the amendment and restatement of the 2015 Senior Notes, the face value of such 2015 Senior Notes was $5,556,000
with an original issue discount of $556,000.


 


In
conjunction with the issuance and/or amendment and restatement, as applicable, of the aggregate face value of $9,302,000 of the
2016 Senior Notes and 2015 Senior Notes, the Company issued five-year warrants to purchase up to 3,720,839 shares of the Company’s
common stock at $3.00 per share. In 2016, 2015 Senior Notes in the aggregate principal amount of $111,000 were converted into
44,444 shares of common stock at $2.50 per share.


 


Between
September 2017 and March 2018, the Company entered into a securities purchase agreement, including several amendments and restatements
thereto, pursuant to which it issued a new series of convertible senior secured notes (collectively the “Bridge Notes”)
and related warrants on substantially identical terms as the 2016 Senior Notes described above, except for the initial exercise
price of the detachable warrants. The Company issued and sold in the aggregate Bridge Notes with a face value of approximately
$2,444,446 and an original issue discount of approximately $244,445 for gross cash proceeds of approximately $2,100,000 and the
forgiveness of approximately $100,000 in accrued payroll liabilities owed to four employees. In conjunction with the issuance
of the Bridge Notes, the Company issued five-year warrants to purchase up to 977,773 shares of common stock at an exercise price
of $1.50 per share. The Bridge Notes mature on December 31, 2018 and rank pari passu with the 2015 Senior Notes and 2016
Senior Notes.


 


The
Company refers to the Bridge Notes, the 2016 Senior Notes and the amended and restated 2015 Senior Notes, collectively, as the
“Senior Notes”. The Senior Notes are fully secured by all assets of the Company and the Company’s subsidiaries.
The Senior Notes are convertible at a price per share of $2.50, which is adjustable upon a Company stock split, reverse split,
or common share dividend.


 






    - 4 -


     


    

 


Upon
an Event of Default, the Senior Notes will bear interest at a rate of 10% per annum. The Senior Notes will mature on December
31, 2018 and rank senior to the Convertible Unsecured Notes. The Senior Notes are convertible at the option of the holder into
the Company’s common stock at an exercise price of $2.50 (as subject to adjustment therein) and will automatically convert
into shares of the Company’s common stock on the fifth trading day immediately following the issuance date of the Senior
Notes on which (i) the Weighted Average Price (as defined in the Senior Notes) of the Company’s common stock for each trading
day during a twenty trading day period equals or exceeds $5.00 (as adjusted for any stock dividend, stock split, stock combination,
reclassification or similar transaction) and no Equity Conditions Failure (as defined in the Senior Notes) has occurred. The Senior
Notes also contain a blocker provision that prevents the Company from effecting a conversion in the event that the holder, together
with certain affiliated parties, would beneficially own in excess of either 4.99% or 9.99%, with such threshold determined by
the holder prior to issuance, of the shares of the Company’s common stock outstanding immediately after giving effect to
such conversion.


 


Upon
an Event of Default and delivery to the holder of the Senior Note of notice thereof, such holder may require the Company to redeem
all or any portion of its Senior Note at a price equal to 115% of the Conversion Amount (as defined in the Senior Notes) being
redeemed. Additionally, upon a Change of Control and delivery to the holder of the Senior Note of notice thereof, such holder
may also require the Company to redeem all or any portion of its Senior Note at a price equal to 115% of the Conversion Amount
being redeemed. Further, at any time from and after July 1, 2018 and provided that the Company has not received either (i) initial
deposits for at least eight 2 MW Power Oxidizer units or (ii) firm purchase orders totaling not less than $3,500,000 and initial
payment collections of at least $1,600,000, in each case during the period commencing on the issuance date of the 2016 Senior
Notes and ending on June 30, 2018, the holder of the Senior Note may require the Company to redeem all or any portion of its Senior
Note at a price equal to 100% of the Conversion Amount being redeemed.


 


At
any time after the issuance date of the Senior Notes, the Company may redeem all or any portion of the then outstanding principal
and accrued and unpaid interest with respect to such principal, at 100% of such aggregate amount; provided, however, that the
aggregate Conversion Amount to be redeemed pursuant to all Senior Notes must be at least $500,000, or such lesser amount as is
then outstanding. The portion of the Senior Note(s) to be redeemed shall be redeemed at a price equal to the greater of (i) 110%
of the Conversion Amount of the Senior Note being redeemed and (ii) the product of (A) the Conversion Amount being redeemed and
(B) the quotient determined by dividing (I) the greatest Weighted Average Price (as defined in the Senior Notes) of the shares
of the Company’s common stock during the period beginning on the date immediately preceding the date of the notice of such
redemption by the Company and ending on the date on which the redemption by the Company occurs by (II) the lowest Conversion Price
(as defined in the Senior Notes) in effect during such period.


 


The
Senior Notes contain a provision that prevents the Company from entering into or becoming party to a Fundamental Transaction (as
defined in the Senior Notes) unless the Company’s successor entity assumes all of the Company’s obligations under
the Senior Notes and the related transaction documents pursuant to written agreements in form and substance satisfactory to at
least a certain number of holders of the Senior Notes.


 


In
connection with foregoing, Ener-Core Power, Inc., the Company’s wholly-owned subsidiary, entered into a Guaranty, pursuant
to which it agreed to guarantee all of the obligations of the Company under the securities purchase agreement for the 2016 Senior
Notes, the Senior Notes and the related transaction documents.


 






    - 5 -


     


    

 


During
the year ended December 31, 2017, two holders of Senior Notes converted an aggregate of $60,000 of principal outstanding under
the Senior Notes into 24,000 shares of the Company’s common stock. As a result of these conversions, the Company incurred
a loss of $53,000, representing the unamortized debt discount and deferred financing fees.


 


The
terms of the Senior Notes, as amended and/or restated to date, including the related securities purchase agreements, and the related
pledge, guaranty and intercreditor agreements, are described in the following Current Reports on Form 8-K, incorporated by reference
herein:


 


		●	Filed
                                         April 23, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         May 7, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         October 23, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         November 3, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         November 25, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         December 11, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         December 31, 2015 (EDGAR
                                         Link)



 


		●	Filed
                                         April 5, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         September 2, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         October 24, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         November 25, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         December 2, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         December 14, 2016 (EDGAR
                                         Link)



 


		●	Filed
                                         May 1, 2017 (EDGAR
                                         Link)



 


		●	Filed
                                         September 20, 2017 (EDGAR
                                         Link)



 


		●	Filed
                                         November 2, 2017 (EDGAR
                                         Link)



 


		●	Filed
                                         December 21, 2017 (EDGAR
                                         Link)



 


		●	Filed
                                         January 26, 2018 (EDGAR
                                         Link)



 


		●	Filed
                                         March 27, 2018 (EDGAR
                                         Link)



 


In
connection with the issuance of the Securities under the Agreement, the Company and certain holders of the Senior Notes intend
to enter into certain amendment agreements and/or waivers to: (1) effective upon the issuance by the Company of Notes with an
aggregate principal amount of at least $2,000,000 pursuant to the Agreement (x) remove the covenants in the securities purchase
agreements with respect to the 2015 Senior Notes and 2016 Senior Notes, and revise the definitions of “Eligible Market”
in the 2015 Senior Notes and 2016 Senior Notes, that require the Company to commence trading of its Common Stock on a national
securities exchange, (y) extend the maturity date of the 2015 Senior Notes, 2016 Senior Notes and Bridge Notes to December 31,
2020 and (z) remove the holders’ right of redemption under Section 7 of the 2015 Senior Notes, 2016 Senior Notes and Bridge
Notes; (2) adjust the conversion price under the 2015 Senior Notes, 2016 Senior Notes and Bridge Notes to $0.25 per share of Common
Stock; and (3) allow for the issuance of the Notes and Warrants and obtain certain waivers by the investors under the 2015 Senior
Notes, 2016 Senior Notes and Bridge Notes and the related securities purchase agreements.


 






    - 6 -


     


    

 


Convertible
Unsecured Notes


 


Convertible
Unsecured Notes (as defined below) payable consisted of the following as of December 31, 2017:


 


	 	 	Notes	 	 	Debt
 Discount
	 	 	Offering Costs	 	 	Net
 Total
	 
	Balance at December 31, 2016	 	$	1,250,000	 	 	$	(666,000	)	 	$	(30,000	)	 	$	554,000	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Amortization of debt discount and deferred financing costs	 	 	—	 	 	 	739,000	 	 	 	30,000	 	 	 	769,000	 
	Issuance of additional warrants	 	 	—	 	 	 	(73,000	)	 	 	—	 	 	 	(73,000	)
	Balance at December 31, 2017	 	$	1,250,000	 	 	$	—	 	 	$	—	 	 	$	1,250,000	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Less: Current Portion	 	$	(1,250,000	)	 	$	—	 	 	$	—	 	 	$	(1,250,000	)
	Long Term Portion	 	$	—	 	 	$	—	 	 	$	—	 	 	$	—	 



 


On
September 1, 2016, the Company entered into a securities purchase agreement and related notes and warrants pursuant to which it
issued certain convertible unsecured promissory notes (the “Convertible Unsecured Notes”) and detachable five-year
warrants to purchase an aggregate of 124,999 shares of the Company’s common stock at an exercise price of $4.00 per share
(the “September 2016 Financing”). The Company received total gross proceeds of $1,250,000, less transaction
expenses of $45,000 consisting of legal costs for net proceeds of $1,205,000. The Company recorded a discount of $553,000 on the
date of issuance representing the fair value of the warrants issued and the value of the beneficial conversion feature on the
date of issuance. In the fourth quarter of 2016, the Company increased its debt discount recorded by $335,000, consisting of $305,000
recorded for the issuance of additional warrants at fair value of $305,000 and $30,000 for the difference in fair value for warrants
repriced from $4.00 per share to $3.00 per share.


 


The
Convertible Unsecured Notes bear interest at a rate of 12% per annum and were scheduled to mature on September 1, 2017; provided,
however, that the Company may not prepay any portion of the outstanding principal and accrued and unpaid interest under the Convertible
Unsecured Notes so long as any of the Senior Notes remain outstanding and in no event will the maturity date of such Convertible
Unsecured Notes be earlier than at least ninety-one (91) days after the maturity date under the Senior Notes. As of December 31,
2017, the Convertible Unsecured Notes remain outstanding. The Convertible Unsecured Notes are subordinate to the Senior Notes.
The Convertible Unsecured Notes were initially convertible at the option of the holder into common stock at a conversion price
of $4.31 per share and will automatically convert into shares of common stock in the event of a conversion of at least 50% of
the then outstanding (i) principal, (ii) accrued and unpaid interest with respect to such principal and (iii) accrued and unpaid
late charges, if any, with respect to such principal and interest, under the Senior Notes. In connection with the issuance of
the 2016 Senior Notes and amendment and restatement of the 2015 Senior Notes, the conversion price was reduced to $2.50 per share.
The Convertible Unsecured Notes also contain a blocker provision that prevents the Company from effecting a conversion in the
event that the holder, together with certain affiliated parties, would beneficially own in excess of 9.99% of the shares of common
stock outstanding immediately after giving effect to such conversion. At any time after the issuance date of the Convertible Unsecured
Notes, the Company may, at its option, redeem all or any portion of the then outstanding principal and accrued and unpaid interest
with respect to such principal (the “Company Optional Redemption Amount”), at 100% of such aggregate amount;
provided, however, that the Company may not redeem all or any portion of the Company Optional Redemption Amount so long as any
of the Senior Notes remain outstanding without the prior written consent of the collateral agent with respect to such Senior Notes
and certain investors holding the requisite number of conversion shares and warrant shares underlying the Senior Notes and related
warrants.


 






    - 7 -


     


    

 


The
securities purchase agreement for the Convertible Unsecured Notes called for the issuance of additional five-year warrants to
purchase an aggregate of 62,500 shares at an exercise price of $4.00 per share on each of the 61st, 91st, 121st and 151st days
after the closing of the September 2016 Financing (in each case, an “Additional Warrant Date”), but only in
the event the Company had not consummated a further financing consisting of the issuance of common stock and warrants for aggregate
gross proceeds of at least $3,000,000 prior to such respective Additional Warrant Date. As of January 30, 2017, the Company had
not consummated a further financing and, as a result, issued warrants to purchase an aggregate of 250,000 shares of the Company’s
common stock, consisting of the issuance of an aggregate of 62,500 shares of the Company’s common stock on each of November
1, 2016, December 1, 2016, December 31, 2016 and January 30, 2017. The Company valued the warrants to purchase an aggregate of
62,500 shares of common stock issued in the first quarter of 2017 using the Black-Scholes option pricing model at $73,000 and
recorded an additional discount on the date of issuance. The Company evaluated the accounting of the additional detachable warrants
and determined that the warrants should not be accounted for as derivative liabilities.


 


The
terms of the Convertible Unsecured Notes and the related warrants, including the related agreements, are also described in the
Company’s Current Report on Form 8-K, filed September 2, 2016 (EDGAR
Link), incorporated by reference herein.


 


In
connection with the issuance of the Securities under the Agreement, the Company and certain holders of the Convertible Unsecured
Notes intend to enter into certain amendment agreements to: (1) provide for the payment in kind of interest accrued and unpaid
through June 30, 2018 (with re-commencement of accrual of interest payable in cash on July 1, 2018), (2) adjust the conversion
price under the Convertible Unsecured Notes to $0.25 per share of Common Stock and (3) amend and restate a definition to facilitate
the Company’s efforts to consummate the sale of the Securities under the Agreement.


 


Leases
Payable 


 


Capital
leases payable consisted of the following:


 


	 	 	December 31,

2017	 	 	December 31,

2016	 
	 	 	 	 	 	 	 
	Capital lease payable to De Lange Landon secured by forklift, 10.0% interest, due on October 1, 2018, monthly payment of $452.	 	$	5,000	 	 	$	10,000	 
	 	 	 	 	 	 	 	 	 
	Capital lease payable to Dell Computers secured by computer equipment, 15.09% interest, ended on November 22, 2017, monthly payment of $394.	 	 	—	 	 	 	4,000	 
	 	 	 	 	 	 	 	 	 
	Capital lease payable to Dell Computers secured by computer equipment, 4.99% interest, due on May 1, 2020, monthly payment of $716.	 	 	20,000	 	 	 	—	 
	Total capital leases	 	$	25,000	 	 	$	14,000	 
	Less: current portion	 	 	(13,000	)	 	 	(10,000	)
	Long-term portion of capital leases	 	$	12,000	 	 	$	4,000	 



  






    - 8 -


     


    

 


The
future minimum lease payments required under the capital leases and the present value of the net minimum lease payments as of
December 31, 2017, are as follows:


 


	 	 	Year Ending
 December 31,	 	Amount	 
		 	2018	 	 	13,000	 
		 	2019	 	 	9,000	 
		 	2020	 	 	4,000	 
	Net minimum lease payments	 	 	 	$	26,000	 
	Less: Amount representing interest and taxes	 	 	 	 	(1,000	)
	Present value of net minimum lease payments	 	 	 	$	25,000	 
	Less: Current maturities of capital lease payables	 	 	 	 	(13,000	)
	Long-term capital lease payables	 	 	 	$	12,000	 



 


Standby
Letter of Credit 


 


Pursuant
to the terms of the Commercial License Agreement (“CLA”), dated as of November 14, 2014, by and between the
Company and Dresser-Rand, the Company was required to provide a backstop security of $2.1 million to secure performance of certain
obligations under the CLA (the “Backstop Security”). Effective November 2, 2015, the Company executed that
certain Backstop Security Support Agreement (the “Support Agreement”), pursuant to which an investor agreed
to provide the Company with financial and other assistance (including the provision of sufficient and adequate collateral) as
necessary in order for the Company to obtain a $2.1 million letter of credit acceptable to Dresser-Rand as the Backstop Security
and with an expiration date of June 30, 2017 (“Letter of Credit”). If the investor is required to make any
payments on the Letter of Credit, subject to the terms of the Intercreditor Agreement (as defined hereinafter), the Company must
reimburse the investor the full amount of any such payment. Such payment obligation is secured by a pledge of certain collateral
of the Company pursuant to a Security Agreement dated November 2, 2015 (“Security Agreement”), and the security
interest in favor of and the payment obligations to the investor are subject to the terms of that certain Subordination and Intercreditor
Agreement executed concurrently with the Support Agreement and Security Agreement (the “Intercreditor Agreement”)
by and among the investor, the Company and the collateral agent pursuant to the Senior Notes.


 


The
term of the Company’s obligations under the Support Agreement (the “Term”) commenced on November 2, 2015,
the issuance date of the Letter of Credit, and will terminate on the earliest of: (a) replacement of the Letter of Credit
with an alternative Backstop Security in favor of Dresser-Rand, (b) Dresser-Rand eliminating the Backstop Security requirement
under the CLA, or (c) the last day of the twenty-fourth calendar month following the commencement of the Term. In consideration
of the investor’s support commitment, the Company paid the investor a one-time fee equal to 4% of the amount of the Letter
of Credit and is obligated to pay a monthly fee equal to 1% of the amount of the Letter of Credit for the first twelve months.
If the Support Agreement has not terminated after the initial twelve months, the Company will pay another one-time fee equal to
4% of the amount of the Letter of Credit, and a monthly fee equal to 2% of the amount of the Letter of Credit for up to another
twelve months.


 


Concurrent
with the execution of the amendment to the CMLA in April 2017, the Company and Dresser-Rand agreed to modify the requirements
for the existing backstop security. As modified, The Company was required to maintain a $500,000 backstop security, reduced from
$2.1 million, and the backstop security was extended from June 2017 to March 31, 2018. The letter of credit and the related backstop
security were cancelled on April 10, 2018, with an effective date of March 31, 2018, with no claims having been made by Dresser-Rand
thereunder.


 






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Amendments
to Backstop Security and Senior Notes


 


In
June 2016, the Company executed a contract manufacturing and commercial licensing agreement (the “CMLA”) with
Dresser-Rand, which both companies intended would supersede and replace the CLA. In April 2017, the Company amended the terms
of the CMLA to make the CMLA effective as of January 1, 2017, at which time it superseded and replaced the CLA. Further, effective
as of April 27, 2017, the Company executed a First Amendment to the Support Agreement (the “BSSA Amendment”),
with the individual investor. The BSSA Amendment is intended to conform the terms of the Support Agreement and related Letter
of Credit to the terms of the CMLA. The BSSA Amendment (i) reduces the security obligation underlying the Letter of Credit from
$2.1 million to $500,000, consistent with the current terms of the CMLA, (ii) extends the term of the backstop security to March
31, 2018, (iii) reduces the related fee payable under the Support Agreement to 1% per month for the remainder of the term, (iv)
provided for the amendment and restatement of the warrant issued to the investor in connection with the execution of the Support
Agreement in order to reduce the exercise price per share of common stock of to $3.00 and insert a beneficial ownership blocker
provision at 4.99% and (v) provided that the Company would issue the investor an additional warrant to purchase 41,000 shares
of Common Stock at an exercise price of $3.00 per share, subject to a 4.99% beneficial ownership blocker.


 


In
connection with the execution of the BSSA Amendment, on April 27, 2017, the Company and certain investors holding Senior Notes
executed first amendments to such Senior Notes to revise the definition of “Backstop Agreement” to include
any amendments, restatements, supplements or other modifications thereof, as may be permitted thereunder.


 


For
detailed terms of the Backstop Security and related documents, see the Company’s Current Reports on Form 8-K filed November
3, 2015 (EDGAR Link)
and May 1, 2017 (EDGAR
Link), each incorporated by reference herein. See also “Standby Letter of Credit” above.


 


Capital
Leases


 


The
Company leases certain assets, primarily computer equipment under agreements expiring in 2020. The total amount of the capital
leases is approximately $35,000.


 


Operating
Leases


 


The
Company leases its office facility and equipment under operating leases, which for the most part, are renewable. The leases also
provide that the Company pays insurance and taxes. The Company’s primary operating lease expired on December 31, 2016 and
the Company extended the lease for a three-month period ending March 31, 2017 at a reduced interim rate. The Company signed a
new lease on February 2017 for a separate facility and moved into the new facilities in April 2017.


 


For
the year ended December 31, 2016 and through March 31, 2017, the Company’s headquarters were located at 9400 Toledo Way,
Irvine, California 92618. The property consisted of a mixed use commercial office, production, and warehouse facility of 32,649
square feet and expired December 31, 2016. The Company extended the lease at a reduced rate until March 31, 2017. The monthly
rent was $26,825 for 2016 and reduced to $15,000 per month for the three months ending March 31, 2017. As of April 1, 2017, the
Company’s headquarters is located at 8965 Research Drive, Irvine, CA 92618 and consists of a mixed use commercial office
of 4,960 square feet. From January through March 2017, the Company’s monthly rent was $15,000 for the Toledo Way property
holdover and, from April 1, 2017, the Company’s monthly rent is $10,168 per month, with annual escalations on April 1, 2018
to $10,473 per month and on April 1, 2019 to $10,787 per month for the Research Drive property. The Toledo Way lease terminated
on April 1, 2017 and the Research Drive property lease expires on March 31, 2020. The Company’s rent expense under these
leases was $137,000 and $322,000 for the years ended December 31, 2017 and 2016, respectively.


  






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Future
minimum rental payments under operating leases that have initial noncancelable lease terms in excess of one year as of December
31, 2017 are as follows:


 


	Year ending December 31, 2018	 	 	125,000	 
	Year ending December 31, 2019	 	 	129,000	 
	Year ending December 31, 2020	 	 	32,000	 
	Total	 	$	286,000	 



 


Trade
Accounts


 


The
Company has approximately $1,800,000 in trade accounts payable as of March 31, 2018.


 


Schedule
3(s)


(Absence
of Litigation)


 


On
September 23, 2016 AMTRA ENGINEERING B.V. filed a civil lawsuit (Case number 30-2016-00877078-CU-BC-CJC) in the Superior Court,
County of Orange, State of California against Ener-Core Power, Inc. alleging breach of contract and breach of warranty. The lawsuit
is due to a billing dispute surrounding a contractor for the Attero 250Kw unit delivered in June 2014 to the Netherlands. The
Company has settled the lawsuit for $42,500 in cash, of which $27,500 remains payable and is expected to be paid after the close
of a larger financing. The Company intends to file a counter-claim against the contractor’s related company to recover $78,000
in unpaid billings.


 


On
March 22, 2017, Dian Griesel filed a civil lawsuit (Case number 30-2017-009001490CU-BC-CJC) in the Superior Court, County of Orange,
State of California against Ener-Core Power, Inc. for 42,657.40 of past due payables for investor relations services performed
for the Company during the 2016 fiscal year. The Company settled the case on November 17, 2017 for $30,000 and has received a
full legal release.


 


On
November 13, 2017, Praxair Distribution, Inc. filed a civil lawsuit (Case number 00955447-CU-CL-CJC) in the Superior Court, County
of Orange, State of California against Ener-Core Power, Inc. for $41,595.45 of past due payables for industrial gases and materials
purchased by the Company during theyear ended December 31, 2016. The Company was served notice on November 28, 2017 and expects
to dispute a portion of the amount claimed. The Company expects to seek a potential settlement during 2018.


 


A
commercial partner of the Company has notified the Company that such partner may make a claim with respect to an incident involving
the Company’s technology; as of the date of the Agreement, no claim has been received and the Company is unable to quantify
the scope of any potential claim.


 


Schedule
3(bb)


(Internal
Accounting and Disclosure Controls)


 


As
of December 31, 2017, the Company’s management, under the supervision and with the participation of its Chief Executive
Officer and Chief Financial Officer, performed an evaluation of the effectiveness of its disclosure controls and procedures (as
defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended).


 






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Based
on such evaluation, the disclosure controls and procedures of the Company and the Subsidiary as of December 31, 2017 were ineffective
at the reasonable assurance level due to the following material weaknesses in internal control over financial reporting:


 


		1.	The
                                         Company does not have complete written documentation of all of its internal control policies
                                         and procedures. Management evaluated the impact of the Company’s failure to have
                                         written documentation of its internal controls and procedures on its assessment of its
                                         disclosure controls and procedures and has concluded that the control deficiency that
                                         resulted represented a material weakness.



 


		2.	The
                                         Company does not have sufficient segregation of duties within accounting functions, which
                                         is a basic internal control. Due to its size and nature, segregation of all conflicting
                                         duties may not always be possible and may not be economically feasible. However, to the
                                         extent possible, the initiation of transactions, the custody of assets and the recording
                                         of transactions should be performed by separate individuals. Management evaluated the
                                         impact of the Company’s failure to have segregation of duties on its assessment
                                         of its disclosure controls and procedures and has concluded that the control deficiency
                                         that resulted represented a material weakness.



 


		3.	For
                                         the year ending December 31, 2017, management concluded that the Company did not have
                                         a sufficient, integrated purchasing and accounting system to allow for proper tracking,
                                         control and costing of its prototype KG2/PO unit costs carried as a fixed asset and Powerstations
                                         currently under construction for sale and carried in inventory. Although the Company
                                         believes that its costing is accurate, based on additional review and procedures, to
                                         the extent the Company sells additional units, it will need to enhance its controls over
                                         its inventory systems. Management evaluated the impact of the Company’s failure
                                         to have adequate inventory accounting systems, coupled with the risk associated with
                                         costing its inventory, and the expected future activity for its inventory costing system
                                         and has concluded that the control deficiency that resulted represented a material weakness.



 


		4.	For
                                         the year ended December 31, 2017, management concluded that the Company’s management
                                         information systems and information technology internal control design was deficient
                                         because the potential for unauthorized access to certain information systems and software
                                         applications existed during 2017 in several departments, including corporate accounting.
                                         Additionally, certain key controls for maintaining the overall integrity of systems and
                                         data processing were not properly designed and operating effectively. These deficiencies
                                         increased the likelihood of potential material errors in the Company’s financial
                                         reporting. Management evaluated the impact of the Company’s failure to have adequate
                                         information technology controls, on its assessment of its disclosure controls and procedures
                                         and has concluded that the control deficiency that resulted represented a material weakness.



 


The
Company is attempting to remediate the material weaknesses in its disclosure controls and procedures and internal controls over
financial reporting identified in its Annual Report on Form 10-K for the fiscal year ended December 31, 2017 by refining its internal
procedures (see below).  The Company has initiated the following corrective actions, which management believes are reasonably
likely to materially affect the Company’s financial reporting, as they are designed to remediate the material weaknesses
as described above:


 


		●	The
                                         Company is in the process of further enhancing the supervisory procedures to include
                                         additional levels of analysis and quality control reviews within the accounting and financial
                                         reporting functions.



 


		●	The
                                         Company is in the process of strengthening its internal policies and enhancing its processes
                                         for ensuring consistent treatment and recording of reserve estimates and that validation
                                         of its conclusions regarding significant accounting policies and their application to
                                         the Company’s business transactions are carried out by personnel with an appropriate
                                         level of accounting knowledge, experience and training.



 


		●	The
                                         Company is evaluating additional analytical tools and accounting systems to address the
                                         inventory costing control weaknesses identified and enhance its internal controls over
                                         inventory and prototype capitalization.



 


		●	The
                                         Company has engaged and will continue to engage additional Information Technology consultants
                                         to improve and update its information technology systems and enhance its internal controls
                                         over information technology.



 






    - 12 -


     


    

 


The
Company does not expect to have fully remediated these material weaknesses until management has tested those internal controls
and found them to have been remediated.  The Company expects to improve its internal controls and to test the improvements
during its annual testing for the fiscal year ending December 31, 2018.


 


Schedule
3(dd)


(Ranking
of Notes)


 


The
Senior Notes and the Notes issuable pursuant to this transaction will rank pari passu. The rights granted pursuant to the
Backstop Agreement are subject to a subordination and intercreditor agreement, and the Convertible Unsecured Notes are subordinated
to all such senior obligations pursuant to another subordination and intercreditor agreement. See also Schedule 3(r).


 


Schedule
3(oo)


(No
Disqualification Events)


 


None.


 


Schedule
4(s)


(Pledges
of Intellectual Property Rights)


 


None,
except as provided in the CMLA, as amended to date.


 


 


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