Document:

Employment Agreement

 Exhibit 10.21 
 EMPLOYMENT AGREEMENT 
 THIS EMPLOYMENT AGREEMENT (“Agreement”) is
made as of March 8, 2012 (the “Effective Date”) by and between Clean Diesel Technologies, Inc., a Delaware corporation (“CDTI” or the “Company”), and R. Craig Breese (“Executive”). 

WHEREAS, CDTI and Executive desire to enter into an agreement setting forth the terms and conditions of Executive’s employment with
CDTI; 
 NOW THEREFORE, in consideration of the mutual promises of the parties and the mutual benefits they will gain by the
performance thereof, and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties do hereby agree as follows: 
  

	1.	Employment. 

 CDTI employs
Executive, and Executive hereby accepts employment with CDTI, upon the terms and conditions set forth in this Agreement for the period beginning on the Effective Date and ending on March 8, 2015. This Agreement supersedes and replaces any other
employment or consulting agreement between Executive and CDTI. 
  

	2.	Position and Duties. 

 (a)
Executive shall serve as Chief Executive Officer of CDTI and shall have the normal duties, responsibilities and authority of such position, subject to the power of the Board of Directors of CDTI (“Board”) to expand or limit such duties,
responsibilities and authority. As Chief Executive Officer, Executive shall be appointed to the Board. 
 (b) Executive shall
report to the Board, and Executive shall devote Executive’s best efforts and all of Executive’s business time and attention (except for permitted vacation periods, reasonable periods of illness or other incapacity) to the business and
affairs of CDTI. Executive shall perform Executive’s duties and responsibilities hereunder to the best of Executive’s abilities in a diligent, trustworthy, businesslike and efficient manner. 

(c) Executive will be subject to, and will comply with, the policies, standards and procedures generally applicable to senior management
employees of CDTI from time to time. 
  

	3.	Compensation and Benefits. 

(a) Base Salary. Executive will receive an annual base salary of $400,000 per year, less applicable payroll withholdings, payable
in accordance with CDTI’s normal payroll practices. This salary shall be subject to annual review by CDTI in accordance with its general policies as in effect from time to time. 

(b) Relocation Allowance. CDTI shall reimburse Executive for Executive’s temporary living and commuting expenses, up to a
maximum of $6,000 per month for up to four months from the Effective Date. Such reimbursements shall be subject to CDTI’s requirements 

  
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with respect to reporting and documentation of business expenses and shall be payable in accordance with CDTI’s general reimbursement policies. Within 10 days of the execution of this
Agreement, CDTI shall also pay Executive the sum of $140,000 to be applied to other costs of relocation. Executive shall relocate his primary residence to a location within 50 miles of CDTI’s corporate headquarters within four months of the
Effective Date. 
 (c) Annual Bonus. Executive shall be eligible to receive an annual bonus based on CDTI’s
achievement of financial objectives established by the Board. The amount of any Annual Bonus will be based upon the degree to which such objectives are met, and will vary from 65% of Base Salary if CDTI’s financial objectives are met to a
maximum of 130% of Base Salary for extraordinary Company performance as measured by pre-approved Board amounts. The annual bonus will be prorated based on the number of days Executive is employed during a calendar year. The bonus with respect to any
calendar year shall be payable in the following calendar year no later than 45 days from the date on which audited financial statements covering such calendar year are filed on Form 10-K. 

(d) Equity and Cash Incentive. On the Effective Date, Executive shall receive long term incentive compensation with a value of
$500,000 comprised of one third (1/3) of nonqualified stock options, one third (1/3) restricted shares of CDTI common stock and one third (1/3) deferred cash compensation. The stock options and restricted stock shall be issued under
and governed by the terms of CDTI’s Incentive Plan and shall be issued at 100% of fair market value. The stock options will be valued using the Company’s customary accounting methodology. The stock options and restricted stock shall vest
28% after one year (on the first anniversary of the Effective Date) and 9% thereafter in March, June, September and December of each year to correspond with the Company’s open trading windows. All of Executive’s unvested stock options and
restricted stock will vest immediately upon Executive’s Termination Without Cause or Resignation for Good Reason concurrent with or subsequent to a Change in Control. The deferred cash compensation will be earned and payable three years from
the Effective Date based on Executive’s achievement of three-year financial objectives agreed to by the Board and Executive. 
 For purposes of the foregoing paragraph, “Change in Control” means a change in ownership or control of CDTI (the “Corporation”) effected through any of the following transactions:

 (i) A merger, consolidation or other reorganization, unless securities representing more than fifty percent
(50%) of the total combined voting power of the voting securities of the successor company are immediately thereafter beneficially owned, directly or indirectly, by the persons who beneficially owned the Corporation’s outstanding voting
securities immediately prior to such transaction; or 
 (ii) A sale, transfer or other disposition of all or
substantially all of the Corporation’s assets in liquidation or dissolution of the Corporation; or 
 (iii)
The acquisition, directly or indirectly by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation), of beneficial

  
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ownership of securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation’s outstanding securities pursuant to a transfer of the then issued
and outstanding voting securities of the Corporation by one or more of the Corporation’s shareholders; or 

(iv) During any period of two (2) consecutive years, individuals who, at the beginning of such period, constitute the
Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the Board, provided that any person becoming a director of the Board subsequent to the date of adoption of this Plan whose election, or a nomination
for election by the Corporation’s shareholders, was approved by the vote of at least a majority of the directors then comprising the Incumbent Board (other than an election or nomination of any individual whose initial assumption of office is
in connection with an actual or threatened election contest relating to the election of the directors of the Board, as such terms are used in Rule 14a-11 of Regulation 14A promulgated under the Securities Exchange Act of 1934. 

Notwithstanding the foregoing, a transaction shall not constitute a Change in Control if its sole purpose is to change the legal jurisdiction of the
Corporation’s incorporation or to create a holding company that will be owned in substantially the same proportions by the persons who held the Corporation’s securities immediately before such transaction. 

(e) Fringe Benefits. Executive shall be entitled to participate in all of CDTI’s employee benefit programs for which CDTI
employees are generally eligible, subject to the terms and conditions of such programs. Those programs currently include group medical, dental and vision insurance; 401(k) plan; life insurance; short-term and long-term disability insurance; and paid
vacation and sick leave. All benefits are subject to change at the sole discretion of the Board and/or CDTI. 

(i) Executive shall be entitled to four (4) weeks of vacation per year. Such vacation time shall accrue and will be
paid out upon Termination subject to customary payroll withholding in accordance with CDTI’s general practices. 
 (f)
Reimbursement of Business Expenses. CDTI shall reimburse Executive for all reasonable expenses incurred by Executive in the course of performing Executive’s duties under this Agreement which are consistent with CDTI’s policies in
effect from time to time with respect to travel, entertainment and other business expenses, subject to CDTI’s requirements with respect to reporting and documentation of such expenses. Such reimbursements shall be payable in accordance with
CDTI’s general reimbursement practices. 

  
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	4.	Termination. 

 (a)
Employment At-Will and Termination. Executive’s employment with CDTI will be “at will” (i.e., either Executive or CDTI may terminate Executive’s employment at any time for any reason, with or without Cause).
Executive’s employment and this Agreement may be terminated as follows: 
 (i) Either party may terminate
this Agreement and Executive’s employment for any reason upon thirty (30) days’ written notice to the other party that this Agreement is being terminated; 

(ii) The parties may terminate this Agreement and Executive’s employment for any reason without notice upon mutual
written agreement of the parties; 
 (iii) CDTI may terminate Executive’s employment and this Agreement upon
written notice to Executive at any time that the Board has determined that there is Cause for such termination. For purposes of this Agreement, “Cause” shall mean Executive’s (A) gross negligence or severe or continued misconduct
in the performance of Executive’s material duties; (B) commission of or pleas of “guilty” or “no contest” to a felony offense or commission of any unlawful or criminal act which would be detrimental to the reputation or
character of CDTI; (C) participation in fraud or an act of dishonesty against CDTI; (D) intentional material damage to or misappropriation of CDTI property; material breach of company policies or regulations, or (E) material breach of
this Agreement that is not cured to CDTI’s reasonable satisfaction within five (5) days after written notice thereof to Executive (provided that any such breach which is not capable of cure, shall immediately constitute “Cause”);

 (iv) This Agreement shall terminate immediately upon Executive’s death or Disability.
“Disability” means Executive’s physical or mental incapacity to perform a substantial portion of his duties and responsibilities for any period or periods which, in the aggregate, total 90 or more calendar days within any 12-month
period; or 
 (v) Executive may resign for Good Reason. For purposes of this Agreement, Executive will have Good
Reason to terminate Executive’s employment with CDTI upon the occurrence of any of the following: (A) a material diminution in the nature or scope of Executive’s responsibilities, duties or authority; (B) CDTI’s requirement
that Executive be based at any location more than 50 miles from Executive’s current CDTI office location in Ventura; (C) any other action or inaction that constitutes a material breach by CDTI of this Agreement; or (D) a material
diminution in Executive’s Base Salary. Executive may not resign for Good Reason unless (A) Executive provides written notice of Executive’s intent to resign to the Board and of the occurrence of Good Reason for resignation under this
paragraph within ninety (90) days of the initial existence of such reason and (B) CDTI has not remedied the alleged violation(s) within thirty (30) days of receipt of such written notice. For purposes of this paragraph written notice
must include a detailed description of the facts and circumstances of the violation allegedly constituting Good Reason and such notice must be given in accordance with applicable CDTI policy, or in the absence of such policy, to the Chair of the
Board or the General Counsel of CDTI. 
 (b) Payments Upon Termination. Upon termination of Executive’s employment
for any reason, Executive shall be entitled to receive any salary and benefits that are accrued and unpaid as of the date of termination. 

  
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 (i) Termination for Cause or Resignation. If Executive resigns Executive’s
employment for any reason other than for Good Reason pursuant to Paragraph 4(a)(v) above, is terminated by CDTI or the Board for Cause pursuant to Paragraph 4(a)(iii), or is terminated by mutual agreement of the parties pursuant to Paragraph
4(a)(ii) above, all compensation and benefits will cease immediately and Executive will receive none of the Severance Benefits (as defined below) or any other severance pay. 
 (ii) Termination Without Cause or Executive’s Resignation for Good Reason. If Executive resigns for Good Reason under Paragraph 4(a)(v) above or Executive’s employment with CDTI is
terminated by CDTI for any reason other for Cause or mutual agreement of the parties pursuant to Paragraph 4(a)(ii) above, subject to Paragraph 4(c) below, Executive will receive the following compensation (“Severance Benefits”):

  

	 	(A)	an amount equal to twelve (12) months of Executive’s current base salary at the time of termination (less required withholdings) payable pursuant to the
Company’s regular payroll practices commencing on the later of the day after the expiration of the revocation period of the Release (as defined below) or 35 days after Executive’s termination date; 

 

	 	(B)	for a period of twelve (12) months following Executive’s termination date, continue Executive’s medical, dental and vision coverage under the
Company’s group health plan as in effect immediately before Executive’s termination, after which Executive may elect continuation coverage at his own expense under COBRA (section 4980 of the Internal Revenue Code of 1986 [the
“Code”] and the California Continuation Benefits Replacement Act (“Cal-COBRA”); provided, however, that such extended coverage will only be provided to the extent that it is not discriminatory under section 105(h) of the Code or
under any other section of the Code or other applicable law. If the extension of such coverage would be discriminatory under section 105(h) of the Code or other applicable law, CDTI shall in lieu of extending coverage under its group health plan
reimburse Executive for the cost of individual (providing care for Executive and his family) medical, dental and vision coverage for a period of twelve (12) months after he exhausts available COBRA and Cal-COBRA; provided, however, that if such
payment is discriminatory under applicable law, CDTI may in its sole discretion increase the payment in part (a) above (including applicable gross-up); and 

 

	 	(C)	an amount equal to a prorated portion (based on the number of full months of service) of Executive’s Annual Bonus to which for the year in which the termination
occurs calculated and payable pursuant to the terms of the applicable bonus program in effect as determined by the Board; provided, however, that such payment shall be made to the Executive within 45 days of the 10-K as above.

  
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 Disability. If Executive’s employment is terminated due to Disability, subject
to Paragraph 4(c) below, Executive will receive the following compensation (“Severance Benefits”): 
  

	 	(A)	an amount equal to six (6) months of Executive’s current base salary at the time of termination (less required withholdings) payable pursuant to the
Company’s regular payroll practices commencing on the later of the day after the expiration of the revocation period of the Release (as defined below) or 35 days after Executive’s termination date; 

 

	 	(B)	for the period of six (6) months following Executive’s termination date, continue medical, dental and vision coverage under the Company’s group health
plan in effect immediately before Executive’s termination, after which Executive may elect continuation coverage at his own expense under COBRA (section 4980 of the Internal Revenue Code of 1986 [the “Code”] and the California
Continuation Benefits Replacement Act (“Cal-COBRA”); provided, however, that such extended coverage will only be provided to the extent that it is not discriminatory under section 105(h) of the Code or under any other section of the Code
or other applicable law. If the extension of such coverage would be discriminatory under section 105(h) of the Code or other applicable law, CDTI shall in lieu of extending coverage under its group health plan reimburse Executive for the cost of
individual (providing care for Executive and his family) medical, dental and vision coverage for a period of six (6) months after he exhausts available COBRA and Cal-COBRA; provided, however, that if such payment is discriminatory under
applicable law, CDTI may in its sole discretion increase the payment in part (a) above (including applicable gross-up); and 

  

	 	(C)	an amount equal to a prorated portion (based on the number of full months of service) of Executive’s Annual Bonus for the year in which the termination occurs
calculated and payable pursuant to the terms of the applicable bonus program in effect as determined by the Board; provided, however, that such payment shall be made to the Executive within 45 days of 10-K as above. 

 

	 	(D)	Notwithstanding the foregoing, any benefits that Executive shall become entitled to receive under CDTI’s long-term disability insurance program as it may from time
to time be in effect shall reduce the Severance Benefits payable under this Paragraph 4(b)(ii). 

 (c) Release
and Commencement of Severance Benefits. As a condition of receiving any Severance Benefits under this Paragraph 4, Executive is required to sign (and not revoke) a Severance Agreement and Release of All Claims (“Release”) against CDTI
and related entities 

  
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and individuals, in a form to be provided by CDTI, within 21 days after his termination date. Payment of Severance Benefits shall not commence until after the time for revocation of the Release
has expired (if the period for signing and not revoking the Release begins in one taxable year for the Executive and ends in the subsequent taxable year, the payment of any Severance Benefits will begin in the second taxable year). 

(d) 409A. The parties intend that the Severance Benefits provided under this Agreement will be deemed not to be deferred
compensation subject to section 409A of the Code (“section 409A”) to the maximum extent provided in the exceptions provided in the Treasury Regulations for short term deferrals (section 1.409A-1(b)(4)) and separation pay plans (section
1.409A-1(b)(9)). All Severance Benefits shall be paid within the period ending no later than the last day of the second taxable year of the Executive following the taxable year in which the Executive’s separation from service occurs, in
conformance with section 1.409A-1(b)(9) of the Treasury Regulations. To the extent that the payment of any amount under this Paragraph 4 constitutes deferred compensation, any payment or benefit due upon Executive’s termination of employment
will only be paid or provided to Executive once Executive’s termination qualifies as a “separation from service” under section 409A. If Executive is a “specified employee” within the meaning of section 409A, any such payment
scheduled to occur during the first six (6) months following Executive’s separation from service shall not be paid until the first regularly scheduled pay period following the six (6) month anniversary date of such separation from
service and shall include payment of any amount that was otherwise scheduled to be paid prior thereto. 
 (e) Return of
Property. Upon termination of Executive’s employment or whenever requested by CDTI, Executive will immediately return all CDTI property, tangible or (where returnable) intangible, in Executive’s possession. 

(f) Upon termination of Executive’s employment with CDTI for any reason, Executive shall promptly resign from any position as an
officer, director or fiduciary of CDTI. 
  

	5.	Protection of Confidential Information. 

 (a) Executive acknowledges and agrees that in connection with his employment with CDTI, he will be given access to or will obtain Confidential Information (as defined below) with respect to CDTI’s
business and employees. Executive will use the Confidential Information only to carry out Executive’s job duties under this Agreement. Executive will hold this information strictly confidential and will not use or disclose it, except in
performance of Executive’s obligations to CDTI, without CDTI’s express written consent. Executive’s obligation to maintain the confidentiality of the Confidential Information of CDTI and to refrain from using such information for any
improper purpose will continue during Executive’s employment with CDTI and at all times thereafter, unless and to the extent that such Confidential Information (i) was otherwise available to Executive from a source other than CDTI,
(ii) becomes generally known to, and available for use by, the public other than as a result of the acts or omissions of the Executive in contravention of this Paragraph 5, or (iii) is required to be disclosed by applicable law, court
order or other legal process. 

  
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 (b) Executive shall deliver to CDTI at the termination of his employment, or at any other
time CDTI may request, all memoranda, notes, plans, records, reports, computer tapes, printouts and software and other documents and data (and copies thereof) relating to the Confidential Information, Work Product (as defined below) or the business
of CDTI which Executive may then possess or have under Executive’s control. 
 (c) “Confidential Information”
includes but is not limited to the following: (i) trade secrets, ideas, processes, formulas, data, programs, other works of authorship, knowhow, improvements, discoveries, developments, designs and techniques; (ii) information regarding
plans for research, development, new products, marketing and selling, business plans, budgets and unpublished financial statements, licenses, prices, costs, supplies, customers and information regarding the skills and compensation of other
employees, directors or consultants of CDTI or any Affiliate; (iii) confidential marketing information (including without limitation marketing strategies, customer or client names and requirements for product and services, prices, margins and
costs); and (iv) other confidential business information of CDTI or any Affiliate. For purposes of this Agreement, “Affiliate” means any trade or business under common control with CDTI, as that term is defined in sections 414(b) and
414(c) of the Code. 
  

	6.	Protection of Intellectual Property. 

 Executive agrees that all inventions, innovations, improvements, developments, methods, techniques, processes, algorithms, data, databases, designs, analyses, drawings, reports, and all similar or related
information, all software, copyrights, and other works of authorship, all other intellectual property or proprietary rights (including any patents, registrations or similar rights that may issue from the foregoing), and all tangible embodiments of
any of the foregoing (in any form or medium, whether now known or hereafter existing), which relate to CDTI’s or any Affiliate’s actual or anticipated business, research and development or existing or future products or services and which
are conceived, developed, contributed to, or made by Executive while employed by CDTI or any Affiliate thereof (collectively, “Work Product”), belong to and are the property of CDTI or such Affiliate, as applicable, and Executive hereby
assigns to CDTI or such Affiliate, as applicable, any right, title and interest Executive may have in and to the Work Product, free and clear of any claims for compensation or restrictions on the use or ownership thereof. Executive will promptly
disclose such Work Product to CDTI and perform all actions reasonably requested by CDTI (whether during or after his employment) to establish, record, perfect and otherwise confirm such ownership, and protect, maintain and enforce CDTI’s and
the Affiliate’s rights, as applicable, in such Work Product (including, without limitation, by executing assignments, consents, powers of attorney, and other instruments and providing affidavits and testifying in any proceeding). 

 

	7.	Post-Employment Covenants. 

(a) Non-Solicitation of Employees. For a period of two (2) years following termination of Executive’s employment with
CDTI, Executive shall not knowingly solicit or encourage, directly or indirectly, in person or through others, any employee of the Company whom Executive worked with at the Company or any Affiliate to terminate his or her relationship with the
Company or its Affiliate or to alter his or her relationship with the Company to the Company’s detriment; provided, however, that generalized advertisement of 

  
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employment opportunities including in trade or industry publications (not focused specifically on or directed in any way at the employees or an employee of CDTI) shall not be deemed to cause a
breach of this Paragraph 7(a). 
 (b) Non-Solicitation of Customers. For a period of two (2) years following
termination of Executive’s employment with CDTI, Executive shall not knowingly solicit, divert or take away, or attempt to solicit, divert or take away, any person, firm or company that was, at any time during the period of twelve
(12) months preceding the termination of Executive’s employment, a client of CDTI and with whom during that twelve (12) month period Executive had business dealings on behalf of CDTI or any Affiliate, for the purpose of selling or
providing a product or service that competes with or displaces a product or service of CDTI that Executive had some material involvement in or received Confidential Information about while employed by CDTI. 

(c) If, at the time of enforcement of this Paragraph 7, a court of competent jurisdiction holds that the restrictions stated herein are
unreasonable under circumstances then existing with respect to (i) any part of the time period covered by these covenants, (ii) any activity covered by these covenants, or (iii) any other aspect of these covenants, any adverse
determination will be implemented as narrowly as possible and will not affect these covenants with respect to any other time period, activity or other aspect covered by these covenants. 

(d) Enforcement. Each of the parties acknowledges that (i) the covenants and restrictions contained in this Paragraph 7, and
the protections for Confidential Information and Work Product under Paragraphs 5 and 6, are necessary, fundamental and required for the protection and continued conduct of CDTI’s business, (ii) such covenants and restrictions relate to
matters which are of a special, unique and extraordinary character and which give these covenants a special, unique value and (iii) breach of these covenants may cause CDTI or its Affiliates irreparable harm which cannot be adequately
compensated by monetary damages, and therefore in the event of a breach or threatened breach of this Agreement, CDTI or its Affiliates or their applicable successors or assigns may, in addition to other rights and remedies existing in their favor,
apply to any court of competent jurisdiction for specific performance and/or injunctive or other relief in order to enforce, or prevent any breaches of, the provisions of this Agreement. Executive agrees that the restrictions contained in Paragraphs
5, 6 and 7 are reasonable. 
  

	8.	General Provisions. 

 (a)
Arbitration. Except for claims for injunctive relief brought pursuant to Paragraph 7, any dispute or controversy arising out of or relating to this Agreement, or the employment relationship created by this Agreement, including the termination
of that relationship and any allegations of unfair or discriminatory treatment arising under state or federal law or otherwise, will be resolved exclusively by final and binding arbitration, except where the law specifically forbids the use of
arbitration as a final and binding remedy. The arbitration shall be administered by the Judicial Arbitration and Mediation Service (“JAMS”) (www.jamsadr.com) and shall be conducted exclusively under the then-current Employment
Arbitration Rules & Procedures and JAMS Policy on Employment Arbitration Minimum Standards of Procedural Fairness, and the California Code of Civil Procedure. The arbitration will take place before a single neutral

  
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arbitrator in Ventura, California. CDTI shall be responsible for the fees and expenses of the arbitrator in connection with the Arbitration. Executive shall be responsible for his attorney fees
and any costs required by JAMS necessary to commence the arbitration, if so commenced at Executive’s request, but in no event shall Executive be responsible for any costs beyond those which he would be required to incur if he filed a civil
action in court concerning the dispute or controversy. The parties shall have all the rights, remedies and defenses available in a civil action for the dispute or controversy. The arbitrator shall issue a written award that includes the
arbitrator’s essential findings and conclusions, and shall have the authority to assess attorneys’ fees and costs of the prevailing party to the losing party. The arbitrator will not have the authority to amend, modify, supplement or
change the terms and conditions of employment as set forth in this Agreement. This arbitration provision will not prohibit either party from seeking injunctive relief pending the outcome of the arbitration or an order confirming or vacating the
award in a court of competent jurisdiction. 
 (b) Severability. Whenever possible, each provision of this Agreement
shall be interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable law or rule in any jurisdiction, such
invalidity, illegality or unenforceability shall not affect any other provision or any other jurisdiction, but this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provision had
never been contained herein. 
 (c) Complete Agreement. This Agreement embodies the complete agreement and understanding
of the parties with respect to the subject matter hereof and supersedes and preempts any prior understandings, agreements or representations by or between the parties, written or oral, which may have related to the subject matter hereof. There are
no other agreements or understandings, written or oral, in effect between the parties relating to the subject matter of this Agreement, unless expressly referenced in this Agreement. 

(d) Counterparts. This Agreement may be executed in separate counterparts, each of which is deemed to be an original and all of
which taken together constitute one and the same agreement. Facsimile or scanned and emailed counterpart signatures to this Agreement shall be acceptable and binding on the parties hereto. 

(e) Successors and Assigns. Except as otherwise provided herein, this Agreement shall bind and inure to the benefit of and be
enforceable by Executive, CDTI and their respective successors and assigns; provided that the rights and obligations of Executive under this Agreement shall not be assignable. 

(f) Governing Law and Jurisdiction. All issues and questions concerning the construction, validity, enforcement and interpretation
of this Agreement and the exhibits hereto shall be governed by, and construed in accordance with, the laws of the State of California. Except as provided in Paragraph 8(a), each of the parties hereto submits to the exclusive jurisdiction and venue
of any state or federal court sitting in the County of Ventura, California. 
 (g) Waiver of Jury Trial. AS A
SPECIFICALLY BARGAINED FOR INDUCEMENT FOR EACH OF THE PARTIES HERETO TO ENTER INTO THIS 

  
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AGREEMENT (AFTER HAVING THE OPPORTUNITY TO CONSULT WITH COUNSEL), EACH PARTY HERETO EXPRESSLY WAIVES THE RIGHT TO TRIAL BY JURY IN ANY LAWSUIT OR PROCEEDING RELATING TO OR ARISING IN ANY WAY
FROM THIS AGREEMENT OR THE MATTERS CONTEMPLATED HEREBY. 
 (h) Amendment and Waiver. The provisions of this Agreement
may be amended or waived only with the prior written consent of CDTI (as approved by the Board) and Executive. 
 (i)
Representations and Warranties of Executive. Executive hereby represents and warrants that Executive’s employment with CDTI on the terms and conditions set forth herein and Executive’s execution and performance of this Agreement do
not constitute a breach or violation of any other agreement, obligation or understanding with any third party. Executive represents that Executive is not bound by any agreement or any other existing or previous business relationship which conflicts
with, or may conflict with, the performance of Executive’s obligations hereunder or prevent the full performance of Executive’s duties and obligations hereunder. 
 (j) No Strict Construction. The language used in this Agreement shall be deemed to be the language chosen by the parties hereto to express their mutual intent, and no rule of strict construction
shall be applied against any party. 
 (k) No Third Party Beneficiaries. Nothing in this Agreement, express or implied,
is intended or shall be construed to give any Person other than the parties to this Agreement and their respective heirs, executors, administrators, successors or permitted assigns any legal or equitable right, remedy or claim under or in respect of
any agreement or any provision contained herein. 
 (l) Notices. All notices, requests and other communications under
this Agreement must be in writing and shall be deemed to have been duly given only if delivered by email or facsimile transmission, personal delivery with written receipt, or mail delivery by overnight courier prepaid, using the following contact
information: 
  

							
	 If to Executive:
	  	R. Craig Breese	  	
		  	[Address]
 [City/state/zip]
	  	
		  	Fax:	 		  	
		  	email:	 		  	

  

			
	 If to CDTI:
	  	 Clean Diesel Technologies, Inc.

4567 Telephone Road

Suite 206

		  	 Ventura, CA 93033

Attention: General Counsel

		  	 Fax: 805-639-9466

		  	 email: rridley@cdti.com

 (m) Survival. The covenants contained in Paragraphs 4(b), 5, 6 and 7 will survive any termination
or expiration of this Agreement. 

  
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 (n) Review and Enforceability of Agreement. Executive represents and warrants that
prior to executing this Agreement, Executive reviewed each and every provision of this Agreement and understands same, and that Executive had a full opportunity to have this Agreement review by legal counsel of Executive’s own choosing.

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the date first written above. 

 

							
	R. CRAIG BREESE, Executive:	 		 	CLEAN DIESEL TECHNOLOGIES, INC., Company
				
	 /s/ R. Craig Breese
	 		 	By:	 	 /s/ Alexander Ellis III

	 [Signature]
	 		 		 	
				
		 		 	Title:	 	 Chairman, Board of Directors

  
 12New Employee Inducement Award Nonqualified Stock Option

 Exhibit 10.36 
 CLEAN DIESEL TECHNOLOGIES, INC. 
 NEW EMPLOYEE INDUCEMENT AWARD

 NONQUALIFIED STOCK OPTION 
 The purpose of this New Employee Inducement Award (the “Award”) granted by Clean Diesel Technologies, Inc., a Delaware corporation (the “Corporation”), is to further the interests of
the Corporation and its shareholders by providing incentives in the form of stock awards to persons not previously Employees of the Corporation, or following a bona fide period of non-employment, as an inducement material to the person’s
entering into employment with the Corporation within the meaning of Rule 5635(c)(4) of the NASDAQ Listing Rules. 
  

	I.	NOTICE OF GRANT OF STOCK OPTION (the “Notice”). 

  

			
	Participant:	  	Robert Craig Breese
		
	Date of Grant:	  	March 8, 2012
		
	Number of Option Shares:	  	176,676
		
	Exercise Price:	  	$2.83
		
	Initial Vesting Date:	  	The date one (1) year after Date of Grant
		
	Option Expiration Date:	  	The date ten (10) years after the Date of Grant
		
	Share Vesting:	  	Subject to the Terms and Conditions, the Award shall vest with respect to 28% of the total number of Option Shares on the Initial Vesting Date and 9% quarterly
thereafter.

	II.	TERMS AND CONDITIONS 

  

	1.	DEFINITIONS AND CONSTRUCTION. 

1.1. Definitions. Unless otherwise defined herein, capitalized terms shall have the meanings assigned to such terms in
Appendix A. 
 1.2. Construction. Captions and titles contained herein are for convenience only and shall not affect
the meaning or interpretation of any provision of this Award. Except when otherwise indicated by the context, the singular shall include the plural and the plural shall include the singular. Use of the term “or” is not intended to be
exclusive, unless the context clearly requires otherwise. 
  

	2.	TAX STATUS OF THE AWARD. 

This Stock Option (the “Option”) is intended to be a nonqualified stock option and shall not be treated as an incentive stock option within the
meaning of Section 422(b) of the Code. The Exercise Price represents an amount the Corporation believes to be no less than the Fair Market Value of a Share as of the Date of Grant, determined in good faith in compliance with the requirements of
Section 409A of the Code. However, there is no guarantee that the Internal Revenue Service (the “IRS”) will agree with the Corporation’s determination. A subsequent IRS determination that the Exercise Price is less than such fair
market value could result in adverse tax consequences to the Participant. By signing below, the Participant agrees that the Corporation, its Directors, Officers and shareholders shall not be held liable for any tax, penalty, interest or cost
incurred by the Participant as a result of such determination by the IRS. The Participant is urged to consult with his or her own tax advisor regarding the tax consequences of the Option, including the application of Section 409A. 

 

	3.	ADMINISTRATION. 

 3.1 Committee. 
 (a) This Award shall be administered by the Board. The
Board may, however, appoint a Committee to administer the Award which shall consist of not less than a sufficient number of disinterested members of the Board so as to qualify the Committee to administer this Award as contemplated by Rule 16b-3 and
Section 162(m) of the Code. Vacancies on the Committee shall be filled by the Board. 
 (b) The Board or Committee is
authorized to (i) interpret and administer the Award, (ii) grant waivers and accelerations of the Award, and (iii) take any other action necessary for the proper administration and operation of the Award. 

3.2 Effect of Determination. Determination of the Board or Committee shall be final, binding and conclusive on the Participant. No
member of the Board or Committee or any of its designee shall be personally liable for any action or determination made in good faith with respect to this Award. 

  
 2 

	4.	EXERCISE OF THE OPTION. 

4.1 Right to Exercise. Except as otherwise provided herein, the Option shall be exercisable on and after the Initial Vesting Date
and prior to the termination of the Option (as provided in Section 6) in an amount not to exceed the number of vested shares less the number of Shares previously acquired upon exercise of the Option. In no event shall the Option be exercisable
for more Shares than the Number of Option Shares, as adjusted pursuant to Section 8. 
 4.2 Method of Exercise.
Exercise of the Option shall be by means of electronic or written notice (the “Exercise Notice”) in a form authorized by the Corporation. An electronic Exercise Notice must be digitally signed or authenticated by the
Participant in such manner as required by the notice and transmitted to the Corporation or an authorized representative of the Corporation (including a third-party administrator designated by the Corporation). In the event that the Participant is
not authorized or is unable to provide an electronic Exercise Notice, the Option shall be exercised by a written Exercise Notice addressed to the Corporation, which shall be signed by the Participant and delivered in person, by certified or
registered mail, return receipt requested, by confirmed facsimile transmission, or by such other means as the Corporation may permit, to the Corporation, or an authorized representative of the Corporation (including a third-party administrator
designated by the Corporation). Each Exercise Notice, whether electronic or written, must state the Participant’s election to exercise the Option, the number of Shares for which the Option is being exercised and such other representations and
agreements as to the Participant’s investment intent with respect to such shares as may be required. Further, each Exercise Notice must be received by the Corporation prior to the termination of the Option as set forth in Section 6 and
must be accompanied by full payment of the aggregate Exercise Price for the number of Shares being purchased and the applicable income tax withholding. The Option shall be deemed to be exercised upon receipt by the Corporation of such electronic or
written Exercise Notice, the aggregate Exercise Price, and the applicable income tax withholding. However, Participant’s exercise of the shares of Corporation common stock may be subject to any market blackout period that may be imposed by the
Corporation and must comply with the Corporation’s insider trading policies, and any other applicable securities laws. 

4.3 Payment of Exercise Price. 
 (a) Forms of Consideration Authorized. Except as otherwise provided below, payment of the aggregate Exercise Price for the number of Shares for which the Option is being exercised shall be made
(i) in cash or by check or cash equivalent, (ii) if permitted by the Corporation, by tender to the Corporation, or attestation to the ownership, of Shares owned by the Participant having a Fair Market Value not less than the aggregate
Exercise Price, (iii) if permitted by the Corporation, by tender to the Corporation, or attestation to the ownership by means of a Cashless Exercise, as defined in Section 4.3(b), or (iv) by any combination of the foregoing.

 (b) Limitations on Forms of Consideration. 
 (i) Tender of Shares. Notwithstanding the foregoing, the Option may not be exercised by tender to the Corporation, or attestation to the ownership, of Shares to

  
 3 

 
the extent such tender or attestation would constitute a violation of the provisions of any law, regulation or agreement restricting the redemption of the Corporation’s Shares. If required
by the Corporation, the Option may not be exercised by tender to the Corporation, or attestation to the ownership, of Shares unless such Shares either have been owned by the Participant for more than six (6) months or such other period, if any,
required by the Corporation (and not used for another option exercise by attestation during such period) or were not acquired, directly or indirectly, from the Corporation. 
 (ii) Cashless Exercise. A “Cashless Exercise” means the delivery of a properly executed notice together with irrevocable instructions to a broker in a form acceptable to the
Corporation providing for the assignment to the Corporation of the proceeds of a sale or loan with respect to some or all of the Shares acquired upon the exercise of the Option pursuant to a program or procedure approved by the Corporation
(including, without limitation, through an exercise complying with the provisions of Regulation T as promulgated from time to time by the Board of Governors of the Federal Reserve System). The Corporation reserves, at any and all times, the right,
in the Corporation’s sole and absolute discretion, to establish, decline to approve, or terminate any such program or procedure, including with respect to the Participant notwithstanding that such program or procedures may be available to
others. 
 4.4 Tax Withholding. 
 (a) In General. At the time the Award is executed, or at any time thereafter as requested by the Corporation, the Participant hereby authorizes withholding from payroll and any other amounts
payable to the Participant, and otherwise agrees to make adequate provision for, any sums required to satisfy the federal, state, and local tax withholding obligations of the Corporation, if any, which arise in connection with the grant, vesting or
exercise of the Option or the issuance of Shares in settlement thereof. The Corporation shall have no obligation to deliver Shares until the tax obligations of the Corporation have been satisfied by the Participant. 

(b) Withholding in Securities. The Corporation may, in its discretion, permit or require the Participant to satisfy all or any
portion of the tax obligations by deducting from the Shares otherwise deliverable to the Participant in settlement of the Option a number of Shares having a Fair Market Value, as determined by the Corporation as of the date on which the tax
obligations arise, not in excess of the amount of such tax obligations determined by the applicable withholding rates. In the event that the Corporation determines that the tax obligations will not be satisfied by the method described above,
Participant authorizes the designated plan administrator or any successor plan administrator, to sell a number of Shares that are purchased under the Option, which the Corporation determines is sufficient to generate an amount that meets the tax
obligations plus additional Shares, as necessary. To account for rounding and market fluctuation, and to pay such tax withholding amounts to the Corporation. The Shares may be sold as part of a block trade with other Participants of the Plan in
which all Participants receive an average price. Any adverse consequences to the Participant resulting from the procedure permitted under this Section 4.4, including, without limitation, tax consequences, shall be the sole responsibility of the
Participant. 
 (c) Consultation. The Participant hereby acknowledges that he or she understands that the Participant may
suffer adverse tax consequences as a result of the Participant’s exercise of the Option or disposition of the Shares. The Participant hereby 

  
 4 

 
represents that the Participant has consulted with any tax consultants the Participant deems advisable in connection with the exercise of the Option or disposition of the Shares and that the
Participant is not relying on the Corporation for any tax advice. 
 4.5 Beneficial Ownership of Shares. The Participant
hereby authorizes the Corporation, in its sole discretion, to deposit for the benefit of the Participant with any broker with which the Participant has an account relationship of which the Corporation has notice any or all Shares acquired by the
Participant pursuant to the exercise of the Option. Except as provided by the preceding sentence, a certificate for the shares as to which the Option is exercised shall be registered in the name of the Participant, or, if applicable, in the names of
the heirs of the Participant. 
 4.6 Restrictions on Grant of the Option and Issuance of Shares. The grant of the Option
and the issuance of Shares upon exercise of the Option shall be subject to compliance with all applicable requirements of federal or state law with respect to such securities. The Option may not be exercised if the issuance of Shares upon exercise
would constitute a violation of any applicable federal or state securities laws or other law or regulations or the requirements of any stock exchange or market system upon which the Shares may then be listed. In addition, the Option may not be
exercised unless (i) a registration statement under the Securities Act shall at the time of exercise of the Option be in effect with respect to the shares issuable upon exercise of the Option or (ii) in the opinion of legal counsel to the
Corporation, the Shares issuable upon exercise of the Option may be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. THE PARTICIPANT IS CAUTIONED THAT THE OPTION MAY NOT BE
EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED. ACCORDINGLY, THE PARTICIPANT MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE OPTION IS VESTED. The inability of the Corporation to obtain from any regulatory body having
jurisdiction the authority, if any, deemed by the Corporation’s legal counsel to be necessary to the lawful issuance and sale of any shares subject to the Option shall relieve the Corporation of any liability in respect of the failure to issue
or sell such shares as to which such requisite authority shall not have been obtained. As a condition to the exercise of the Option, the Corporation may require the Participant to satisfy any qualifications that may be necessary or appropriate, to
evidence compliance with any applicable law or regulation and to make any representation or warranty with respect thereto as may be requested by the Corporation. 
 4.7 Fractional Shares. The Corporation shall not be required to issue fractional shares upon the exercise of the Option. 

 

	5.	NONTRANSFERABILITY OF THE OPTION. 

During the lifetime of the Participant, the Option shall be exercisable only by the Participant or the Participant’s guardian or legal
representative. The Option shall not be subject in any manner to anticipation, alienation, sale, exchange, transfer, assignment, pledge, encumbrance, or garnishment by creditors of the Participant or the Participant’s beneficiary, except
transfer by will or by the laws of descent and distribution. Following the death of the Participant, the Option may be exercised by the Participant’s legal representative or by any person empowered to do so under the deceased Participant’s
will or under the then applicable laws of descent and distribution. 

  
 5 

	6.	TERMINATION OF THE OPTION. 

The Option shall terminate and may no longer be exercised after the first to occur of (a) the close of business on the Option Expiration Date, or
(b) the close of business on the last date for exercising the Option following termination of the Participant’s Service as described in Section 7. 
  

	7.	EFFECT OF TERMINATION OF SERVICE. 

7.1 Option Exercisability. The Option shall expire immediately upon the Participant’s termination of Service to the extent
that it is then unvested. The Option shall be exercisable after the Participant’s termination of Service to the extent it is then vested only during the applicable time period as determined below and thereafter shall expire. 

(a) Disability. If the Participant’s Service terminates because of the Disability of the Participant, the Option, to the
extent unexercised and exercisable for vested Shares on the date on which the Participant’s Service terminated, may be exercised by the Participant (or the Participant’s guardian or legal representative) at any time prior to the Option
Expiration Date. 
 (b) Death. If the Participant’s Service terminates because of the death of the Participant, the
portion of the Option that has not then vested shall expire immediately but such portion of the Option that has then vested may be exercised by the Participant’s legal representative or other person who acquired the right to exercise the Option
by reason of the Participant’s death at any time prior to the Option Expiration Date. 
 (c) Termination for Cause.
Notwithstanding any other provision of this New Employee Inducement Award, if the Participant’s Service is terminated for Cause, the Option shall terminate and cease to be exercisable immediately upon such termination of Service. 

(d) Voluntary Resignation. If the Participant’s Service terminates because of the Participant’s voluntary resignation,
the Option, to the extent unexercised and exercisable for vested Shares on the date on which the Participant’s Service terminated, may be exercised by the Participant (or the Participant’s guardian or legal representative) at any time
prior to the expiration of 90 days after the date on which the Participant’s Service terminated, but in any event, no later than the Option Expiration Date. 
 (e) Termination Without Cause or Resignation for Good Reason. 
 (i)
Absent a Change In Control. Upon Participant’s termination of Service Without Cause or Resignation for Good Reason absent a Change in Control, the Option, to the extent unexercised and exercisable for vested Shares on the date on which
the Participant’s Service terminated, may be exercised by the Participant (or the Participant’s guardian or legal representative) at any time prior to the expiration of 90 days after the date on which the Participant’s Service
terminated, but in any event, no later than the Option Expiration Date. 

  
 6 

 (ii) Concurrent With or After a Change in Control. Upon Participant’s
termination of Service Without Cause or Resignation for Good Reason concurrent with or subsequent to a Change in Control, unvested Shares will vest immediately upon termination. In the instance of termination of Service Without Cause, Options may be
exercised by the Participant at any time prior to the expiration of 90 days after the date on which the Participant’s Service terminated, but in any event no later than the Option Expiration Date. In the instance of termination of Service for
Good Reason concurrent with or subsequent to a Change in Control, Options may be exercised by the Participant at any time prior to the expiration of 180 days after the date on which the Participant’s Service terminated, but in any event no
later than the Option Expiration Date. 
 7.2 Extension if Exercise Prevented by Law. Notwithstanding the foregoing other
than termination of Service for Cause, if the exercise of the Option within the applicable time periods set forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option shall remain exercisable until the later of
(a) thirty (30) days after the date such exercise first would no longer be prevented by such provisions or (b) the end of the applicable time period under Section 7.1, but in any event no later than the Option Expiration Date.

  

	8.	ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

 Subject to any required action by the stockholders of the Corporation and the requirements of Sections 409A and 424 of the Code
to the extent applicable, in the event of any change in the Shares effected without receipt of consideration by the Corporation, whether through merger, consolidation, reorganization, reincorporation, recapitalization, reclassification, stock
dividend, stock split, reverse stock split, split-up, split-off, spin-off, combination of shares, exchange of shares, or similar change in the capital structure of the Corporation, or in the event of payment of a dividend or distribution to the
stockholders of the Corporation in a form other than Shares (excepting normal cash dividends) that has a material effect on the Fair Market Value of Shares, appropriate and proportionate adjustments shall be made in the number, Exercise Price and
kind of Shares subject to the Option, in order to prevent dilution or enlargement of the Participant’s rights under the Option. For purposes of the foregoing, conversion of any convertible securities of the Corporation shall not be treated as
“effected without receipt of consideration by the Corporation.” Any fractional share resulting from an adjustment pursuant to this Section 8 shall be rounded down to the nearest whole number, and the Exercise Price shall be rounded up
to the nearest whole cent. In no event may the Exercise Price be decreased to an amount less than the par value, if any, of the Shares subject to the Option. Such adjustments shall be determined by the Board, and its determination shall be final,
binding and conclusive. 
  

	9.	RIGHTS AS A STOCKHOLDER, DIRECTOR, EMPLOYEE OR
CONSULTANT. 

 The Participant shall have no rights as a stockholder with respect to any
Shares covered by the Option until the date of the issuance of the Shares for which the Option has been exercised (as evidenced by the appropriate entry on the books of the Corporation or of a duly authorized transfer agent of the Corporation). No
adjustment shall be made for dividends, distributions or 

  
 7 

 
other rights for which the record date is prior to the date the shares are issued, except as provided in Section 8. Participant understands and acknowledges that, except as otherwise
provided in a separate, written employment agreement between the Corporation and the Participant, the Participant’s employment is “at will” and is for no specified term. Nothing in this Option Agreement shall confer upon the
Participant any right to continue in the Service of a Participating Corporation or interfere in any way with any right of the Participating Corporation Group to terminate the Participant’s Service as a Director or an Employee, as the case may
be, at any time. 
  

	10.	MISCELLANEOUS PROVISIONS. 

10.1 Amendment. The Board may amend the Award at any time; provided, however, that except in connection with a Change in Control,
no such amendment may adversely affect the Option or any unexercised portion hereof without the consent of the Participant unless such termination or amendment is necessary to comply with any applicable law or government regulation, including, but
not limited to Section 409A of the Code. No amendment or addition to this Award shall be effective unless in writing. 

10.2 Compliance with Section 409A. The Corporation intends that income realized by the Participant pursuant to the Award will
not be subject to taxation under Section 409A of the Code. The provisions of the Award shall be interpreted and construed in favor of satisfying any applicable requirements of Section 409A of the Code. The Corporation, in its reasonable
discretion, may amend (including retroactively) the Award in order to conform to the applicable requirements of Section 409A of the Code, including amendments to facilitate the Participant’s ability to avoid taxation under
Section 409A of the Code. However, the preceding provisions shall not be construed as a guarantee by the Corporation of any particular tax result for income realized by the Participant pursuant to the Award. In any event, and except for the
responsibilities of the Corporation set forth in Section 4.4., no Participating Corporation shall be responsible for the payment of any applicable taxes on income realized by the Participant pursuant to the Award. 

10.3 Further Instruments. The parties hereto agree to execute such further instruments and to take such further action as may
reasonably be necessary to carry out the intent of this Award. 
 10.4 Binding Effect. Subject to the restrictions on
transfer set forth herein, this Award shall inure to the benefit of and be binding upon the parties hereto and their respective heirs, executors, administrators, successors and assigns. 

10.5 Delivery of Documents and Notices. Any document relating to participation in the Award, or any notice required or permitted
hereunder shall be given in writing and shall be deemed effectively given upon personal delivery electronic delivery at the e-mail address, if any, provided for the Participant by the Participating Corporation, or, upon deposit in the U.S. Post
Office, by registered or certified mail, or with a nationally recognized overnight courier service with postage and fees prepaid, addressed to the other party at the address of such party set forth in writing from time to time to the other party.

  
 8 

 (a) Description of Electronic Delivery. The Award documents and any
reports of the Corporation provided generally to the Corporation’s shareholders, may be delivered to the Participant electronically. In addition, if permitted by the Corporation, the Participant may deliver electronically the Exercise Notice
called for by Section 4.2 to the Corporation or to such third party involved in administering the Award as the Corporation may designate from time to time. Such means of electronic delivery may include but do not necessarily include the
delivery of a link to a Corporation intranet or the internet site of a third party involved in administering the Award, the delivery of the document via e-mail or such other means of electronic delivery specified by the Corporation. 

(b) Consent to Electronic Delivery. The Participant acknowledges that the Participant has read Section 10.5(a) of this Award
and consents to the electronic delivery of the documents and, if permitted by the Corporation, the delivery of the Exercise Notice, as described in Section 10.5(a). The Participant acknowledges that he or she may receive from the Corporation a
paper copy of any documents delivered electronically at no cost to the Participant by contacting the Corporation by telephone or in writing. The Participant further acknowledges that the Participant will be provided with a paper copy of any
documents if the attempted electronic delivery of such documents fails. Similarly, the Participant understands that the Participant must provide the Corporation or any designated third party administrator with a paper copy of any documents if the
attempted electronic delivery of such documents fails. The Participant may revoke his or her consent to the electronic delivery of documents described in Section 10.5(a) or may change the electronic mail address to which such documents are to
be delivered (if Participant has provided an electronic mail address) at any time by notifying the Corporation of such revoked consent or revised e-mail address by telephone, postal service or electronic mail. Finally, the Participant understands
that he or she is not required to consent to electronic delivery of documents described in Section 10.5(a). 
 10.6
Arbitration. Any and all disputes whatsoever between a Participant and the Corporation concerning the administration of this Award, the interpretation and effect of the Award or the rights of Participant under the Award shall be finally
determined before one neutral arbitrator in the County of Ventura, California, U.S.A, under the rules of commercial arbitration of the American Arbitration Association then in effect and judgment upon any award by such arbitrator may be entered in
any Court having jurisdiction or application may be made to such court for a judicial acceptance of the award and an order of enforcement, as the case may be. The arbitrator hereunder shall have no power or authority to award consequential, punitive
or statutory damages. 
 10.7 Governing Law. This Award and the rights of the Corporation and the Participants shall be
governed and interpreted in accordance with the laws of California, U.S.A. 

  
 9 

 By signing below, the Participant: (a) acknowledges receipt of, and represents that the Participant has
read and is familiar with the terms and conditions of the Award, (b) accepts the Award subject to all of the terms and conditions set forth herein, and (c) agrees to accept as binding, conclusive and final all decisions or interpretations
of the Board upon any questions arising under the Award. 
  

													
		 	CLEAN DIESEL TECHNOLOGIES, INC.	  	PARTICIPANT	  	
						
		 	By:	  	 /s/ Nikhil A Mehta
	  		  	 /s/ Robert Craig Breese
	  	
		 		  	Nikhil A. Mehta	  		  	Robert Craig Breese	  	
				
		 	Its: Chief Financial Officer	  	Date: March 26, 2012	  	
							
		 	Address:	  	 4567 Telephone Road
 Suite
100
	  		  	 Address:
	  	 4567 Telephone Road
 Suite
100
	  	
		 		  	Ventura, CA 93003	  		  		  	Ventura, CA 93003	  	

  
 10 

 APPENDIX A 

Definitions 
  

	a)	“Award” means this New Employee Inducement Award, which is a nonqualified stock option. 

 

	b)	“Board” means the Board of Directors of the Corporation. 

  

	c)	“Cause” means Participant’s (A) gross negligence or severe or continued misconduct in the performance of Participant’s material
duties; (B) commission of or pleas of “guilty” or “no contest” to a felony offense or commission of any unlawful or criminal act which would be detrimental to the reputation or character of the Corporation;
(C) participation in fraud or an act of dishonesty against the Corporation; (D) intentional material damage to or misappropriation of the Corporation’s property; material breach of Corporation policies or regulations; or
(E) material breach of Participant’s Employment Agreement that is not cured to the Corporation’s reasonable satisfaction within five (5) days after written notice thereof to Participant (provided that any such breach which is not
capable of cure, shall immediately constitute “Cause”). 

  

	d)	“Change in Control” means a change in ownership or control of the Corporation effected through any of the following transactions: (A) a merger,
consolidation or other reorganization, unless securities representing more than fifty percent (50%) of the total combined voting power of the voting securities of the successor company are immediately thereafter beneficially owned, directly or
indirectly, by the persons who beneficially owned the Corporation’s outstanding voting securities immediately prior to such transaction; (B) a sale, transfer or other disposition of all or substantially all of the Corporation’s assets
in liquidation or dissolution of the Corporation; (C) the acquisition, directly or indirectly by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under
common control with, the Corporation), of beneficial ownership of securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation’s outstanding securities pursuant to a transfer of the then issued
and outstanding voting securities of the Corporation by one or more of the Corporation’s shareholders; and (D) during any period of two (2) consecutive years, individuals who, at the beginning of such period, constitute the Board (the
“Incumbent Board”) cease for any reason to constitute at least a majority of the Board, provided that any person becoming a director of the Board subsequent to the date of the grant of this Award whose election, or a nomination for
election by the Corporation’s shareholders, was approved by the vote of at least a majority of the directors then comprising the Incumbent Board (other than an election or nomination of any individual whose initial assumption of office is in
connection with an actual or threatened election contest relating to the election of the directors of the Board, as such terms are used in Rule 14a-11 of Regulation 14A promulgated under the Exchange Act of 1934. Anything in the foregoing
to the contrary notwithstanding, a transaction shall not constitute a Change in Control if its sole purpose is to change the legal jurisdiction of the Corporation’s incorporation or to create a holding company that will be owned in
substantially the same proportions by the persons who held the Corporation’s securities immediately before such transaction. 

	e)	“Code” means the United States Internal Revenue Code of 1986, as amended and in effect from time to time, or any successor statute.

  

	f)	“Committee” means the Committee of the Board or any successor committee as described in Section 3.1, or, if there shall be no such Committee, the
Board. 

  

	g)	“Corporation” means Clean Diesel Technologies, Inc., a Delaware corporation, or any successor corporation, and Participating Companies.

  

	h)	“Director” means a member of the Board 

  

	i)	“Disability” means Participant’s physical or mental incapacity to perform a substantial portion of his duties and responsibilities for any period
or periods which, in the aggregate, total 90 or more calendar days within any 12-month period. 

  

	j)	“Employee” means any individual who is a salaried employee on the payroll of the Corporation. 

 

	k)	“Exchange Act” means the Securities Exchange Act of 1934, as amended and in effect from time to time, or any successor statute.

  

	l)	“Fair Market Value” means the closing sale price on the date of the grant as reported on the NASDAQ Stock Market, Inc., or, if there is no
such reported price, then the average of the NASDAQ bid and asked prices, or, if there are no bid and asked prices, or if the bid and asked prices are determined by the Board in good faith for good reason not to be representative of fair market
value, then the value determined in good faith by the Board. For non-trading days, the practice is to take the average of the sales or bid and asked prices, as the case may be, on trading days for a reasonable length of time determined in good
faith by the Board before and after the grant date. Notwithstanding the preceding, for federal, state, and local income tax reporting purposes, fair market value shall be determined by the Board or Committee (or its delegate) in accordance with
uniform and nondiscriminatory standards adopted by it from time to time. 

  

	m)	“Good Reason” means (A) a material diminution in the nature or scope of Participant’s responsibilities, duties or authority; (B) the
Corporation’s requirement that Participant be based at any location more than 50 miles from Participant’s current corporate office location in Ventura; (C) any other action or inaction that constitutes a material breach by the
Corporation of the Participant’s Employment Agreement; or (D) a material diminution in Participant’s base salary. 

  

	n)	“Officer” means any person designated by the Board as an officer of the Company. 

 

	o)	“Option” means the nonqualified stock option granted to Participant under this New Employee Inducement Award. 

 

	p)	“Participating Company” means the Corporation or any Subsidiary Corporation. 

	q)	“Rule 16b-3” means such rule as promulgated by the Securities and Exchange Commission under the Exchange Act as now in force or as such regulation or
successor regulation shall be hereafter amended. 

  

	r)	“Service” means a Participant’s employment or service with the Corporation, whether in the capacity of an Employee or a Director. Unless
otherwise provided by the Board, a Participant’s Service shall not be deemed to have terminated merely because of a change in the capacity in which the Participant renders such Service or a change in the Participating Company for which the
Participant renders such Service, provided that there is no interruption or termination of the Participant’s Service. Furthermore, a Participant’s Service shall not be deemed to have terminated if the Participant takes any military leave,
sick leave, or other bona fide leave of absence approved by the Company. However, unless otherwise provided by the Board, if any such leave taken by a Participant exceeds ninety (90) days, then on the ninety-first (91st) day following the
commencement of such leave the Participant’s Service shall be deemed to have terminated, unless the Participant’s right to return to Service is guaranteed by statute or contract. Notwithstanding the foregoing, unless otherwise designated
by the Company or required by law, an unpaid leave of absence shall not be treated as Service for purposes of determining vesting under the Award. Except as otherwise provided by the Board, in its discretion, the Participant’s Service shall be
deemed to have terminated either upon an actual termination of Service or upon the business entity for which the Participant performs Service ceasing to be a Participating Company. Subject to the foregoing, the Company, in its discretion, shall
determine whether the Participant’s Service has terminated and the effective date of and reason for such termination. 

  

	s)	“Shares” means a share of common stock of the Corporation, as adjusted from time to time in accordance with Section 8. 

 

	t)	“Subsidiary Corporation” means any present or future “subsidiary corporation” of the Company, as defined in Section 424(f) of the Code.

  

	u)	“Disability” means a permanent and total disability within the meaning of Section 22(e)(3) of the Code, provided that the Board or Committee in
its discretion, may determine whether a permanent and total disability exists in accordance with uniform and non-discriminatory standards adopted by the Board or Committee from time to time. 

							
		 		 	Participant:	  	  

		 		 	Date:	  	  

 NEW EMPLOYEE INDUCEMENT AWARD 

OPTION EXERCISE NOTICE 
  

									
	 Clean Diesel Technologies, Inc.
	  	
	 Attention:
	  	  
	  		  	
	  
	  		  	
	  
	  		  	

 Ladies and Gentlemen: 
 1. Option. I was granted an option (the “Option”) to purchase shares of the common stock (the “Shares”) of Clean
Diesel Technologies, Inc. (the “Corporation”) pursuant to the New Employee Inducement Award as follows: 
  

					
	 Date of Grant:
	  	  	                           
  	   
	 Number of Option Shares:
	  	  	                           
  	   
	 Exercise Price per Share:
	  	$	                           
 	  

 2. Exercise of Option. I hereby elect to exercise the Option to purchase the following number of Shares,
all of which are vested Shares, in accordance with the Grant Notice and Agreement: 
  

					
	 Total Shares Purchased:
	  	  	                           
  	   
	 Total Exercise Price (Total Shares X Price per Share)
	  	$	                           
 	  

 3. Payments. I enclose payment in full of the total exercise price for the Shares in the following form(s),
as authorized by my Option Agreement: 
  

					
	 __ Cash:
	  	$	                         
       	  
	 __ Check:
	  	$	                         
       	  
	 __ Tender of Corporation Stock:
	  	 	Contact Plan Administrator	  
	 __ Cashless Exercise
	  	 	Contact Plan Administrator	  

 4. Tax Withholding. I authorize share withholding, payroll withholding and otherwise will make
adequate provision for the federal, state, and local tax withholding obligations of the Corporation, if any, in connection with the Option. I enclose payment in full of my withholding taxes, if any, as follows: 

(Contact Plan Administrator for amount of tax due.) 
  

					
	 __ Cash:
	  	$	                        	  
	 __ Check:
	  	$	                        	  

 5. Participant Information. 

 

			
	 My address is:
	 	  

		 	  

	 My Social Security Number is:
	 	  

 6. Tax Consultation. I hereby acknowledge that I understand that I may suffer adverse tax consequences as a
result of my purchase or disposition of the Shares. I hereby represent that I have consulted with any tax consultants that I deem advisable in connection with the purchase or disposition of the Shares and that I am not relying on the Corporation for
any tax advice. 
 7. Binding Effect. I agree that the Shares are being acquired in accordance with and subject to the terms,
provisions and conditions of the New Employee Inducement Award to which I hereby expressly assent. This Agreement shall inure to the benefit of and be binding upon my heirs, executors, administrators, successors and assigns. 

 

	
	 Very truly yours,

	
	  
 (Signature)

 Receipt of the above is hereby acknowledged. 
 Clean Diesel Technologies, Inc. 

			
	 By:
	 	  

	 Title:
	 	  

	 Dated:

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