Document:

Form of Lock-Up Agreement

 Exhibit 10.8 
 April 29, 2011 
 The Investors party to the 

Purchase Agreement referred to below 
 Ladies
and Gentlemen: 
 This Agreement (this “Agreement”) is being delivered to you in connection with the proposed
purchase agreement (as such agreement may hereafter be amended from time to time, the “Purchase Agreement”) to be entered into by Power Solutions International, Inc., a Nevada corporation (the “Company”), and the
investors named therein (the “Investors”), which, among other things, provides for the issuance and sale by the Company of certain of its securities to the Investors. Capitalized terms used herein have the respective meanings
ascribed thereto in the Purchase Agreement unless otherwise defined herein. 
 As a condition to the Investors’ willingness
to enter into the Purchase Agreement, the Investors have required that the undersigned enter into this Agreement. In order to induce the Investors to enter into the Purchase Agreement, the undersigned hereby agrees that, it will not, other than in
connection with the Merger and the Stock Repurchase, during the period commencing on the date of the Purchase Agreement and ending on the earlier of (i) the termination thereof and (ii) 180 days after the Effective Date (the
“Lock-Up Period”), (1) offer, hypothecate, pledge, sell, contract or agree to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of or agree to transfer or dispose of, directly or indirectly, or file (or participate in the filing of) a registration statement with the Securities and Exchange Commission (the “Commission”) in
respect of, or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, and the rules and regulations of the
Commission promulgated thereunder (the “Exchange Act”) with respect to, any shares of Common Stock or any securities of the Company that are substantially similar to Common Stock, or any securities convertible into or exercisable or
exchangeable for, or any warrants or other rights to purchase, the foregoing (including, without limitation, the Series A Preferred Stock), or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of
the economic consequences of ownership of the Common Stock or Series A Preferred Stock or any other securities of the Company that are substantially similar to Common Stock, or any securities convertible into or exchangeable or exercisable for, or
any warrants or other rights to purchase, the foregoing, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock, Series A Preferred Stock or other securities, in cash or otherwise or
(3) publicly announce an intention to effect any transaction specified in clause (1) or (2). The foregoing sentence shall not apply to (a) the Purchase and Sale Agreement, dated as of April 29, 2011, by and between Gary
Winemaster and Thomas Somodi, and the transfers of Common Stock as contemplated thereby or (b) transfers of shares of Common Stock or any security convertible into Common Stock (including, without limitation, the Series A Preferred Stock) as a

 
bona fide gift, by will or intestacy or to a member of the “immediate family” (as defined below) of the undersigned or to a family partnership or trust for the benefit of the
undersigned and/or one or more members of the immediate family of the undersigned or to any other person who is, or is to become, an officer, director or other affiliate of the Company; provided that in the case of any transfer or
distribution pursuant to clause (b) each donee, distributee or other transferee shall agree in writing to be bound by the terms of this agreement with respect to any securities so transferred. The undersigned hereby waives any rights the
undersigned may have to require registration of Common Stock during the Lock-Up Period. In addition, the undersigned agrees that it will not, during the Lock-Up Period, make any demand for or exercise any right with respect to, the registration of
any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock (including, without limitation, the Series A Preferred Stock). The undersigned also agrees and consents to the entry of stop transfer
instructions with the Company’s transfer agent and registrar against the transfer of the undersigned’s shares of Common Stock or Series A Preferred Stock except in compliance with the foregoing restrictions. As used herein, “immediate
family” shall mean the spouse, any lineal descendent, father, mother, brother or sister of the undersigned. 
 No provision
in this agreement shall be deemed to restrict or prohibit the exercise or exchange by the undersigned of any option or warrant to acquire shares of Common Stock, or any other security exchangeable or exercisable for, or convertible into, Common
Stock, provided that any Common Stock acquired on such exercise or exchange will be subject to the restrictions provided for in this agreement. In addition, no provision herein shall be deemed to restrict or prohibit the entry into or
modification of a so-called “10b5-1 plan” at any time (other than the entry into or modification of such a plan in such a manner as to cause the sale of any shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock within the Lock-Up Period); provided that no sales or transfers may be made under such plan until the Lock-Up Period ends or this agreement is terminated in accordance with its terms. 

The undersigned acknowledges that the Investors are relying upon this agreement in entering into the Purchase Agreement and consummating
the transactions contemplated thereby. No amendment, modification or waiver of the terms of this Agreement shall be effective unless consented to by the Required Investors in writing. 

The undersigned acknowledges that if the undersigned fails to perform any of its obligations under this Agreement, immediate and
irreparable harm or injury would be caused to the Investors for which money damages would not be an adequate remedy. In such event, the undersigned agrees that each Investor shall have the right, in addition to any other rights it may have, to
specific performance of this Agreement. Accordingly, should any Investor institute an action or proceeding seeking specific enforcement of the provisions hereof, the undersigned hereby waives the claim or defense that such Investor has an adequate
remedy at law and hereby agrees not to assert in any such action or proceeding the claim or defense that such a remedy at law exists. 
 This agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to the conflict of laws principles thereof. 

[signature page follows] 

 The undersigned further understands that this agreement is irrevocable and shall be binding
upon the undersigned’s heirs, legal representatives, successors and assigns. 
  

	
	Very truly yours,
	
	  

	(Name)
	
	  

	(Address)Registration Rights Agreement

 Exhibit 10.9 
 REGISTRATION RIGHTS AGREEMENT 
 This Registration Rights Agreement
(the “Agreement”) is made and entered into as of this 29th day of April, 2011 by and among Power Solutions International, Inc., a Nevada corporation (the “Company”), the “Investors” named in that certain Purchase
Agreement by and among the Company and the Investors and Roth Capital Partners, LLC (the “Placement Agent”) (the “Purchase Agreement”). Capitalized terms used herein have the respective meanings ascribed thereto in the Purchase
Agreement unless otherwise defined herein. 
 The parties hereby agree as follows: 

1. Certain Definitions. 
 As used in this Agreement, the following terms shall have the following meanings: 

“Agent Warrant Shares” means the shares of Common Stock issuable upon the exercise of the Agent Warrants. 

“Common Stock” means the Company’s common stock, par value $0.001 per share, and any securities into which such
shares may hereinafter be reclassified. 
 “Delayed Issuance Shares” means the Warrant Shares, the Agent
Warrant Shares and the Conversion Shares which are not issuable upon the conversion of the Preferred Stock prior to the Reverse Split. 
 “Investors” means the Investors identified in the Purchase Agreement, the Placement Agent and any Affiliate or permitted transferee of any Investor or the Placement Agent who is a
subsequent holder of any Registrable Securities and who complies with the provisions of Section 7(c). 

“Prospectus” means (i) the prospectus included in any Registration Statement, as amended or supplemented by any
prospectus supplement, with respect to the terms of the offering of any portion of the Registrable Securities covered by such Registration Statement and by all other amendments and supplements to the prospectus, including post-effective amendments
and all material incorporated by reference in such prospectus, and (ii) any “free writing prospectus” (as defined in Rule 405 under the 1933 Act) relating to any Registration Statement. 

“Register,” “registered” and “registration” refer to a registration made by preparing
and filing a Registration Statement or similar document in compliance with the 1933 Act (as defined below), and the declaration or ordering of effectiveness of such Registration Statement or document. 

“Registrable Securities” means (i) the Conversion Shares, (ii) the Warrant Shares, (iii) the Reset
Shares, (iv) the Reset Warrant Shares, (v) the Agent Warrant Shares and (vi) any other securities issued or issuable with respect to or in exchange for Registrable Securities, whether by merger, charter amendment or otherwise;
provided, that, a security shall cease to be a Registrable Security upon (A) sale pursuant to a Registration Statement or Rule 144 under the 

 
1933 Act, (B) such security becoming eligible for sale without restriction by the Investor holding such security pursuant to Rule 144 or (C) such security otherwise becoming eligible
for sale without restriction pursuant to Section 4(1) of the 1933 Act; provided, that, any restrictive legend on any certificate or other instrument representing such security has been removed or there has been delivered to the
transfer agent for such security irrevocable documentation (including any necessary legal opinion) to the effect that, upon submission by the applicable Investor of the certificate or instrument representing such security, any such restrictive
legend shall be removed. 
 “Registration Statement” means any registration statement of the Company filed
under the 1933 Act that covers the resale of any of the Registrable Securities pursuant to the provisions of this Agreement, amendments and supplements to such Registration Statement, including post-effective amendments, all exhibits and all
material incorporated by reference in such Registration Statement. 
 “Required Investors” means the Investors
holding at least 66 2/3% of the Registrable Securities. For purposes of this definition, an Investor shall be deemed to hold any Registrable Securities then issuable upon conversion or exercise (as applicable) of any Shares, Warrants or Reset
Warrants held by such Investor. 
 “Reset Issuance Shares” means the Reset Shares and the Reset Warrant Shares.

 “SEC” means the U.S. Securities and Exchange Commission. 

“1933 Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 “1934 Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder. 
 2. Registration. 
 (a) Registration Statements. 
 (i) Promptly following the closing of the purchase
and sale of the securities contemplated by the Purchase Agreement (the “Closing Date”) but no later than thirty (30) days after the Closing Date (the “Filing Deadline”), the Company shall prepare and file with the SEC one
Registration Statement on Form S-1, covering the resale of the Registrable Securities, other than the Reset Issuance Shares; provided, that, such Registration Statement need not cover the Delayed Issuance Shares if the Company
determines (upon advice of counsel), or is advised by the SEC, that the Delayed Issuance Shares may not be covered thereby. Subject to any SEC comments, such Registration Statement shall include the plan of distribution attached hereto as Exhibit
A; provided, however, that no Investor (other than the Placement Agent or any Affiliate or transferee of the Placement Agent) shall be named as an “underwriter” in the Registration Statement without the Investor’s
prior written consent. Such Registration Statement also shall cover, to the extent allowable under the 1933 Act and the rules promulgated thereunder (including Rule 416), such indeterminate number of additional shares of Common Stock resulting from
stock splits, stock dividends or similar transactions with respect to the Registrable Securities. Such Registration Statement shall not include any shares of Common 

 
Stock or other securities for the account of any other holder without the prior written consent of the Required Investors. The Registration Statement (and each amendment or supplement thereto,
and each request for acceleration of effectiveness thereof) shall be provided in accordance with Section 3(c) to the Investors and their counsel prior to its filing or other submission. If a Registration Statement covering the Registrable
Securities is not filed with the SEC on or prior to the Filing Deadline, the Company will make pro rata payments to each Investor, as liquidated damages and not as a penalty, in an amount equal to 1.5% of the aggregate amount invested by such
Investor for each 30-day period or pro rata for any portion thereof following the Filing Deadline for which no Registration Statement is filed with respect to the Registrable Securities. Such payments shall constitute the Investors’ exclusive
monetary remedy for such events, but shall not affect the right of the Investors to seek injunctive relief. Such payments shall be made to each Investor in cash no later than three (3) Business Days after the end of each 30-day period.

 (ii) Additional Registrable Securities. Upon (i) the Recap Deadline (unless the Delayed Issuance Shares are
included in the Registration Statement filed pursuant to Section 2(a)(i)), (ii) the Reset Date and (iii) any change in the Warrant Price (as defined in the Warrant) such that additional shares of Common Stock become issuable upon the
exercise of the Warrants (other than as a result of a change contemplated by Rule 416 under the 1933 Act), the Company shall prepare and file with the SEC one or more Registration Statements on Form S-3 or amend the Registration Statement filed
pursuant to clause (i) above, if such Registration Statement has not previously been declared effective (or, if Form S-3 is not then available to the Company, on such form of registration statement as is then available to effect a registration
for resale of the Delayed Issuance Shares (unless the Delayed Issuance Shares are included in the Registration Statement filed pursuant to Section 2(a)(i)), the Reset Issuance Shares or such additional shares of Common Stock, as applicable (the
“Additional Shares”)), covering the resale of the Additional Shares, but only to the extent the Additional Shares are not at the time covered by an effective Registration Statement. Subject to any SEC comments, such Registration Statement
shall include the plan of distribution attached hereto as Exhibit A; provided, however, that no Investor (other than the Placement Agent or any Affiliate or transferee of the Placement Agent) shall be named as an
“underwriter” in the Registration Statement without the Investor’s prior written consent. Such Registration Statement also shall cover, to the extent allowable under the 1933 Act and the rules promulgated thereunder (including Rule
416), such indeterminate number of additional shares of Common Stock resulting from stock splits, stock dividends or similar transactions with respect to the Additional Shares. Such Registration Statement shall not include any shares of Common Stock
or other securities for the account of any other holder without the prior written consent of the Required Investors. The Registration Statement (and each amendment or supplement thereto, and each request for acceleration of effectiveness thereof)
shall be provided in accordance with Section 3(c) to the Investors and their counsel prior to its filing or other submission. If a Registration Statement covering the Additional Shares is required to be filed under this Section 2(a)(ii)
and is not filed with the SEC within five Business Days of the occurrence of any of the events specified in this Section 2(a)(ii) (the “Additional Shares Filing Deadline”), the Company will make pro rata payments to each Investor, as
liquidated damages and not as a penalty, in an amount equal to 1.5% of the aggregate amount invested by such Investor for each 30-day period or pro rata for any portion thereof following the Additional Shares Filing Deadline for which no
Registration Statement is filed with respect to the Additional Shares. Such payments shall constitute the Investors’ exclusive monetary remedy for such events, but shall not affect the right of the Investors to seek injunctive relief. Such
payments shall be made to each Investor in cash no later than three (3) Business Days after the end of each 30-day period. 

 (iii) S-3 Qualification. Promptly following the date (the “Qualification
Date”) upon which the Company becomes eligible to use a registration statement on Form S-3 to register the Registrable Securities or Additional Shares, as applicable, for resale, but in no event more than thirty (30) days after the
Qualification Date (the “Qualification Deadline”), the Company shall file a registration statement on Form S-3 covering the Registrable Securities or Additional Shares, as applicable (or a post-effective amendment on Form S-3 to the
registration statement on Form S-1) (a “Shelf Registration Statement”) and shall use commercially reasonable efforts to cause such Shelf Registration Statement to be declared effective as promptly as practicable thereafter. If a Shelf
Registration Statement covering the Registrable Securities is not filed with the SEC on or prior to the Qualification Deadline, the Company will make pro rata payments to each Investor, as liquidated damages and not as a penalty, in an amount equal
to 1.5% of the aggregate purchase price paid by such Investor pursuant to the Purchase Agreement attributable to those Registrable Securities that remain unsold at that time for each 30-day period or pro rata for any portion thereof following the
date by which such Shelf Registration Statement should have been filed for which no such Shelf Registration Statement is filed with respect to the Registrable Securities or Additional Shares, as applicable. Such payments shall constitute the
Investors’ exclusive monetary remedy for such events, but shall not affect the right of the Investors to seek injunctive relief. Such payments shall be made to each Investor in cash no later than three (3) Business Days after the end of
each 30-day period. 
 (b) Expenses. The Company will pay all expenses associated with each registration, including
filing and printing fees, the Company’s counsel and accounting fees and expenses, costs associated with clearing the Registrable Securities for sale under applicable state securities laws, listing fees, fees and expenses of one counsel to the
Investors (not to exceed $10,000 per Registration Statement) and the Investors’ reasonable out-of-pocket expenses in connection with the registration, but excluding discounts, commissions, fees of underwriters, selling brokers, dealer managers
or similar securities industry professionals with respect to the Registrable Securities being sold. 
 (c) Effectiveness.

 (i) The Company shall use commercially reasonable efforts to have the Registration Statement declared
effective as soon as practicable. The Company shall notify the Investors by facsimile or e-mail as promptly as practicable, and in any event, within twenty-four (24) hours, after any Registration Statement is declared effective and shall
simultaneously provide the Investors with copies of any related Prospectus to be used in connection with the sale or other disposition of the securities covered thereby. If (A)(x) a Registration Statement covering the Registrable Securities is not
declared effective by the SEC prior to the earlier of (i) five (5) Business Days after the SEC shall have informed the Company that no review of the Registration Statement will be made or that the SEC has no further comments on the
Registration Statement or (ii) the 120th day after
the Closing Date, (y) a Registration Statement covering Additional Shares is not declared effective by the SEC prior to the earlier of (i) five (5) Business Days after the SEC shall have informed the Company that no review of the
Registration Statement will be made or that the SEC has no further comments on the Registration Statement 

 
or (ii) the 120th day after the Additional Shares Filing Deadline, or (z) a Shelf Registration Statement is not declared effective by the SEC prior to the earlier of (i) five (5) Business Days after the SEC
shall have informed the Company that no review of the Registration Statement will be made or that the SEC has no further comments on the Registration Statement or (ii) the 120th day after the Qualification Deadline, or (B) after a Registration Statement has been declared effective by the
SEC, sales cannot be made pursuant to such Registration Statement for any reason (including without limitation by reason of a stop order, or the Company’s failure to update the Registration Statement), but excluding any Allowed Delay (as
defined below) or the inability of any Investor to sell the Registrable Securities covered thereby due to market conditions, then the Company will make pro rata payments to each Investor, as liquidated damages and not as a penalty, in an amount
equal to 1.5% of the aggregate amount invested by such Investor for each 30-day period or pro rata for any portion thereof following the date by which such Registration Statement should have been effective (the “Blackout Period”). Such
payments shall constitute the Investors’ exclusive monetary remedy for such events, but shall not affect the right of the Investors to seek injunctive relief. The amounts payable as liquidated damages pursuant to this paragraph shall be paid
monthly within three (3) Business Days of the last day of each month following the commencement of the Blackout Period until the termination of the Blackout Period. Such payments shall be made to each Investor in cash. 

(ii) For not more than twenty (20) consecutive days or for a total of not more than forty-five (45) days in any twelve
(12) month period, the Company may suspend the use of any Prospectus included in any Registration Statement contemplated by this Section, or delay the filing of any post-effective amendment or supplement thereto, in the event that the Company
determines in good faith that such suspension or delay (as applicable) is necessary to (A) delay the disclosure of material non-public information concerning the Company, the disclosure of which at the time is not, in the good faith opinion of
the Company, in the best interests of the Company or (B) amend or supplement the affected Registration Statement or the related Prospectus so that such Registration Statement or Prospectus shall not include an untrue statement of a material
fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the case of the Prospectus in light of the circumstances under which they were made, not misleading (an “Allowed Delay”);
provided, that the Company shall promptly (a) notify each Investor in writing of the commencement of an Allowed Delay, but shall not (without the prior written consent of an Investor) disclose to such Investor any material non-public
information giving rise to an Allowed Delay, (b) advise the Investors in writing to cease all sales under the Registration Statement until the end of the Allowed Delay and (c) use commercially reasonable efforts to terminate an Allowed
Delay as promptly as reasonably practicable. 
 (d) Rule 415; Cutback If at any time the SEC takes the position that the
offering of some or all of the Registrable Securities in a Registration Statement is not eligible to be made on a delayed or continuous basis under the provisions of Rule 415 under the 1933 Act or requires any Investor (other than the Placement
Agent or any Affiliate or transferee of the Placement Agent) to be named as an “underwriter”, the Company shall use its best efforts to persuade the SEC that the offering contemplated by the Registration Statement is a valid secondary
offering and not an offering “by or on behalf of the issuer” as defined in Rule 415 and that none of the Investors (other than the Placement Agent or any Affiliate or transferee of the Placement Agent) is an “underwriter.” The
Investors shall have the right to participate or have 

 
their counsel participate in any meetings or discussions with the SEC regarding the SEC’s position and to comment or have their counsel comment on any written submission made to the SEC with
respect thereto. No such written submission shall be made to the SEC to which the Investors’ counsel reasonably objects. In the event that, despite the Company’s best efforts and compliance with the terms of this Section 2(d), the SEC
refuses to alter its position, the Company shall (i) remove from the Registration Statement such portion of the Registrable Securities (the “Cut Back Shares”) and/or (ii) agree to such restrictions and limitations on the
registration and resale of the Registrable Securities as the SEC may require to assure the Company’s compliance with the requirements of Rule 415 (collectively, the “SEC Restrictions”); provided, however, that the
Company shall not agree to name any Investor (other than the Placement Agent or any Affiliate or transferee of the Placement Agent) as an “underwriter” in such Registration Statement without the prior written consent of such Investor. Any
cut-back imposed on the Investors pursuant to this Section 2(d) shall be allocated among the Investors on a pro rata basis and shall be applied first to any Agent Warrant Shares held by the Placement Agent or any Affiliate or transferee of the
Placement Agent and second to any Warrant Shares held by the remaining Investors, unless the SEC Restrictions otherwise require or provide or the Investors otherwise agree. No liquidated damages shall accrue as to any Cut Back Shares until such date
as the Company is able to effect the registration of such Cut Back Shares in accordance with any SEC Restrictions (such date, the “Restriction Termination Date” of such Cut Back Shares). From and after the Restriction Termination Date
applicable to any Cut Back Shares, all of the provisions of this Section 2 (including the liquidated damages provisions) shall again be applicable to such Cut Back Shares; provided, however, that (i) the Filing Deadline, the
Additional Shares Filing Deadline and/or the Qualification Deadline, as applicable, for the Registration Statement including such Cut Back Shares shall be ten (10) Business Days after such Restriction Termination Date, and (ii) the date by
which the Company is required to obtain effectiveness with respect to such Cut Back Shares under Section 2(c) shall be the 120th day immediately after the Restriction Termination Date. 

(e) Right to Piggyback Registration. 
 (i) If at any time following the date of this Agreement that any Registrable Securities remain outstanding (A) there is not one or more effective Registration Statements covering all of the
Registrable Securities and (B) the Company proposes for any reason to register any shares of Common Stock under the 1933 Act (other than pursuant to a registration statement on Form S-4 or Form S-8 (or a similar or successor form)) with respect
to an offering of Common Stock by the Company for its own account or for the account of any of its shareholders, it shall at each such time promptly give written notice to the holders of the Registrable Securities of its intention to do so (but in
no event less than fifteen (15) days before the anticipated filing date) and, to the extent permitted under the provisions of Rule 415 under the 1933 Act, include in such registration all Registrable Securities with respect to which the Company
has received written requests for inclusion therein within fifteen (15) days after receipt of the Company’s notice (a “Piggyback Registration”). Subject to Section 2(e)(iii), such notice shall offer the holders of the
Registrable Securities the opportunity to register such number of shares of Registrable Securities as each such holder may request and shall indicate the intended method of distribution of such Registrable Securities. 

 (ii) Notwithstanding the foregoing, (A) if such registration involves an underwritten
public offering, the Investors must sell their Registrable Securities to, if applicable, the underwriter(s) at the same price and subject to the same underwriting discounts and commissions that apply to the other securities sold in such offering (it
being acknowledged that the Company shall be responsible for other expenses as set forth in Section 2(b)) and subject to the Investors entering into customary underwriting documentation for selling shareholders in an underwritten public
offering, and (B) if, at any time after giving written notice of its intention to register any Registrable Securities pursuant to Section 2(e)(i) and prior to the effective date of the registration statement filed in connection with such
registration, the Company shall determine for any reason not to cause such registration statement to become effective under the 1933 Act, the Company shall deliver written notice to the Investors and, thereupon, shall be relieved of its obligation
to register any Registrable Securities in connection with such registration; provided, however, that nothing contained in this Section 2(e)(ii) shall limit the Company’s liabilities and/or obligations under this Agreement, including,
without limitation, the obligation to pay liquidated damages under this Section 2. 
 (iii) Notwithstanding the foregoing,
(i) if a Piggyback Registration is an underwritten primary registration on behalf of the Company (including any such offering that is also proposed to include securities to be sold on behalf of holders thereof) and the managing underwriters
advise the Company in writing that in their opinion the number of securities requested to be included in the registration jeopardizes the marketing of the proposed offering, the Company will include in such registration: first, the securities
that the Company proposes to sell, second the Registrable Securities requested to be included in such registration by the Investors (other than the Placement Agent or any transferee of the Placement Agent), pro rata among such Investors on
the basis of the number of Registrable Securities owned by such Investors, with further successive pro rata allocations among such Investors if any such Investor has requested the registration of less than all of the Registrable Securities such
Investor is entitled to register, third the Registrable Securities requested to be included in such registration by the Placement Agent or any transferee of the Placement Agent, and fourth, any other securities requested to be included
in such registration; or (ii) if a Piggyback Registration is an underwritten secondary registration solely on behalf of holders of the Company’s securities (other than the Investors) and the managing underwriters advise the Company in
writing that in their opinion the number of securities requested to be included in the registration jeopardizes the marketing of the proposed offering, the Company will include in such registration: first, the securities requested to be
included therein by the holders requesting such registration, second, the Registrable Securities requested to be included in such registration by the Investors (other than the Placement Agent or any transferee of the Placement Agent), pro
rata among such Investors on the basis of the number of Registrable Securities owned by such Investors, with further successive pro rata allocations among such Investors if any such Investor has requested the registration of less than all of the
Registrable Securities such Investor is entitled to register, third the Registrable Securities requested to be included in such registration by the Placement Agent or any transferee of the Placement Agent, and fourth, any other
securities requested to be included in such registration. 

 3. Company Obligations. The Company will use commercially reasonable efforts to
effect the registration of the Registrable Securities in accordance with the terms hereof, and pursuant thereto the Company will, as expeditiously as possible: 
 (a) use commercially reasonable efforts to cause such Registration Statement to become effective and to remain continuously effective for a period (the “Effectiveness Period”) that will
terminate upon the earliest of (i) the first date on which all Registrable Securities covered by such Registration Statement as amended from time to time, have been sold, (ii) the first date on which all Registrable Securities covered by
such Registration Statement may be sold without restriction pursuant to Rule 144, or (iii) the first date on which none of the securities included in such Registration Statement constitute Registrable Securities; 

(b) prepare and file with the SEC such amendments and post-effective amendments to the Registration Statement and the Prospectus as may
be necessary to keep the Registration Statement effective for the Effectiveness Period and to comply with the provisions of the 1933 Act and the 1934 Act with respect to the distribution of all of the Registrable Securities covered thereby;

 (c) provide copies to and permit counsel designated by the Investors to review each Registration Statement and all amendments
and supplements thereto no fewer than three (3) Business Days prior to their filing with the SEC and not file any document to which such counsel reasonably objects; 
 (d) furnish to the Investors and their legal counsel (i) promptly after the same is prepared and publicly distributed, filed with the SEC, or received by the Company (but not later than two
(2) Business Days after the filing date, receipt date or sending date, as the case may be) one (1) copy of any Registration Statement and any amendment thereto, each preliminary prospectus and Prospectus and each amendment or supplement
thereto, and each letter written by or on behalf of the Company to the SEC or the staff of the SEC, and each item of correspondence from the SEC or the staff of the SEC, in each case relating to such Registration Statement (other than any portion of
any thereof which contains information for which the Company has sought confidential treatment), and (ii) such number of copies of a Prospectus, including a preliminary prospectus, and all amendments and supplements thereto and such other
documents as each Investor may reasonably request in order to facilitate the disposition of the Registrable Securities owned by such Investor that are covered by the related Registration Statement; 

(e) use commercially reasonable efforts to (i) prevent the issuance of any stop order or other suspension of effectiveness and,
(ii) if such order is issued, obtain the withdrawal of any such order as soon as possible; 
 (f) prior to any public
offering of Registrable Securities, use commercially reasonable efforts to register or qualify or cooperate with the Investors and their counsel in connection with the registration or qualification of such Registrable Securities for offer and sale
under the securities or blue sky laws of such jurisdictions requested by the Investors and do any and all other commercially reasonable acts or things necessary or advisable to enable the distribution in such jurisdictions of the Registrable
Securities covered by the Registration Statement; provided, however, that the Company shall not be required in connection therewith or as a condition thereto to (i) qualify to do business in any jurisdiction where it would not
otherwise be required to qualify but for this Section 3(f), (ii) subject itself to general taxation in any jurisdiction where it would not otherwise be so subject but for this Section 3(f), or (iii) file a general consent to
service of process in any such jurisdiction; 

 (g) use commercially reasonable efforts to cause all Registrable Securities covered by a
Registration Statement to be listed on each securities exchange, interdealer quotation system or other market on which similar securities issued by the Company are then listed; 

(h) promptly notify the Investors, at any time prior to the end of the Effectiveness Period, upon discovery that, or upon the happening
of any event as a result of which, the Prospectus includes an untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein not misleading in light of the
circumstances then existing, and, subject to Section 2(c)(ii), promptly prepare, file with the SEC and furnish to such holder a supplement to or an amendment of such Prospectus as may be necessary so that such Prospectus shall not include an
untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading in light of the circumstances then existing; 

(i) otherwise use commercially reasonable efforts to comply with all applicable rules and regulations of the SEC under the 1933 Act and
the 1934 Act, including, without limitation, Rule 172 under the 1933 Act, file any final Prospectus, including any supplement or amendment thereof, with the SEC pursuant to Rule 424 under the 1933 Act, promptly inform the Investors in writing if, at
any time during the Effectiveness Period, the Company does not satisfy the conditions specified in Rule 172 and, as a result thereof, the Investors are required to deliver a Prospectus in connection with any disposition of Registrable Securities and
take such other actions as may be reasonably necessary to facilitate the registration of the Registrable Securities hereunder; and make available to its security holders not later than the Availability Date (as defined below), an earnings statement
covering a period of at least twelve (12) months, beginning after the effective date of each Registration Statement, which earnings statement shall satisfy the provisions of Section 11(a) of the 1933 Act, including Rule 158 promulgated
thereunder (for the purpose of this subsection 3(i), “Availability Date” means the 45th day following the end of the fourth fiscal quarter that includes the effective date of such Registration Statement, except that, if such fourth fiscal
quarter is the last quarter of the Company’s fiscal year, “Availability Date” means the 90th day after the end of such fourth fiscal quarter); and 
 (j) With a view to making available to the Investors the benefits of Rule 144 (or its successor rule) and any other rule or regulation of the SEC that may at any time permit the Investors to sell shares
of Common Stock to the public without registration, the Company covenants and agrees to: (i) make and keep public information available, as those terms are understood and defined in Rule 144, until the earlier of (A) six months after such
date as all of the Registrable Securities may be sold without restriction by the holders thereof pursuant to Rule 144 or any other rule of similar effect or (B) such date as all of the Registrable Securities shall have been resold by the
holders thereof; (ii) file with the SEC in a timely manner all reports and other documents required of the Company under the 1934 Act; and (iii) furnish to each Investor upon request, as long as such Investor owns any Registrable
Securities, (A) a written statement by the Company that it has complied with the reporting requirements of the 1934 Act, (B) a copy 

 
of the Company’s most recent Annual Report on Form 10-K or Quarterly Report on Form 10-Q, and (C) such other information as may be reasonably requested in order to avail such Investor
of any rule or regulation of the SEC that permits the selling of any such Registrable Securities without registration. 
 4.
Due Diligence Review; Information. At the reasonable request of an Investor, the Company shall make available, during normal business hours, for inspection and review by the Investor, and advisors to and representatives of such Investor (who
may or may not be affiliated with the Investor and who are reasonably acceptable to the Company), all financial and other records, all SEC Filings (as defined in the Purchase Agreement) and other filings with the SEC, and all other corporate
documents and properties of the Company as may be reasonably necessary for the purpose of such review, and cause the Company’s officers, directors and employees, within a reasonable time period, to supply all such information reasonably
requested by the Investors or any such representative, advisor or underwriter in connection with such Registration Statement (including, without limitation, in response to all questions and other inquiries reasonably made or submitted by any of
them), prior to and from time to time after the filing and effectiveness of the Registration Statement for the sole purpose of enabling the Investors and such representatives, advisors and underwriters and their respective accountants and attorneys
to conduct initial and ongoing due diligence with respect to the Company and the accuracy of such Registration Statement. 
 The
Company shall not disclose material nonpublic information to the Investors, or to advisors to or representatives of the Investors, unless prior to disclosure of such information the Company identifies such information as being material nonpublic
information and provides the Investors, such advisors and representatives with the opportunity to accept or refuse to accept such material nonpublic information for review and any Investor wishing to obtain such information enters into an
appropriate confidentiality agreement with the Company with respect thereto. 
 5. Obligations of the Investors.

 (a) Each Investor shall furnish in writing to the Company such information regarding itself, the Registrable Securities held
by it and the intended method of disposition of the Registrable Securities held by it, as shall be reasonably required to effect the registration of such Registrable Securities and shall execute such documents in connection with such registration as
the Company may reasonably request. At least five (5) Business Days prior to the first anticipated filing date of any Registration Statement, the Company shall notify each Investor of the information the Company requires from such Investor if
such Investor elects to have any of the Registrable Securities included in the Registration Statement. An Investor shall provide such information to the Company at least two (2) Business Days prior to the first anticipated filing date of such
Registration Statement if such Investor elects to have any of the Registrable Securities included in the Registration Statement. 
 (b) Each Investor, by its acceptance of the Registrable Securities agrees to cooperate with the Company as reasonably requested by the Company in connection with the preparation and filing of a
Registration Statement hereunder, unless such Investor has notified the Company in writing of its election to exclude all of its Registrable Securities from such Registration Statement. 

 (c) Each Investor agrees that, upon receipt of any notice from the Company of either
(i) the commencement of an Allowed Delay pursuant to Section 2(c)(ii) or (ii) the happening of an event pursuant to Section 3(h) hereof, such Investor will immediately discontinue disposition of Registrable Securities pursuant to
the Registration Statement covering such Registrable Securities, until the Investor is advised by the Company that such dispositions may again be made. 
 6. Indemnification. 
 (a) Indemnification by the Company. The
Company will indemnify and hold harmless each Investor and its officers, directors, members, employees and agents, successors and assigns, and each other person, if any, who controls such Investor within the meaning of the 1933 Act, against any
losses, claims, damages or liabilities, joint or several, to which they may become subject under the 1933 Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon:
(i) any untrue statement or alleged untrue statement or omission or alleged omission of any material fact contained in any Registration Statement, any preliminary Prospectus or final Prospectus, or any amendment or supplement thereto;
(ii) any blue sky application or other document executed by the Company specifically for that purpose or based upon written information furnished by the Company filed in any state or other jurisdiction in order to qualify any or all of the
Registrable Securities under the securities laws thereof (any such application, document or information herein called a “Blue Sky Application”); (iii) the omission or alleged omission to state in a Blue Sky Application a material fact
required to be stated therein or necessary to make the statements therein not misleading; (iv) any violation by the Company or its agents of any rule or regulation promulgated under the 1933 Act applicable to the Company or its agents and
relating to action or inaction required of the Company in connection with such registration; or (v) any failure to register or qualify the Registrable Securities included in any such Registration Statement in any state where the Company or its
agents has affirmatively undertaken or agreed in writing that the Company will undertake such registration or qualification on an Investor’s behalf, and will reimburse such Investor, and each such officer, director or member and each such
controlling person for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that the Company will not be liable in
any such case if and to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement or omission or alleged omission so made in conformity with information furnished by such
Investor or any such controlling person in writing specifically for use in such Registration Statement, Prospectus or Blue Sky Application. 
 (b) Indemnification by the Investors. Each Investor agrees, severally but not jointly, to indemnify and hold harmless, to the fullest extent permitted by law, the Company, its directors, officers,
employees, shareholders and each person who controls the Company (within the meaning of the 1933 Act) against any losses, claims, damages, liabilities and expense (including reasonable attorney fees) resulting from any untrue statement or alleged
untrue statement of a material fact or any omission or alleged omission of a material fact 

 
required to be stated in any Registration Statement, Prospectus or preliminary Prospectus, or amendment or supplement thereto, or any Blue Sky Application, or necessary to make the statements
therein not misleading, to the extent, but only to the extent that such untrue statement or omission or alleged untrue statement or alleged omission is contained in any information furnished in writing by such Investor to the Company specifically
for inclusion in such Registration Statement or Prospectus or amendment or supplement thereto or Blue Sky Application. In no event shall the liability of an Investor be greater in amount than the dollar amount of the proceeds (net of all expenses
paid by such Investor in connection with any claim relating to this Section 6 and the amount of any damages such Investor has otherwise been required to pay by reason of such untrue statement or omission) received by such Investor upon the sale
of the Registrable Securities included in the Registration Statement giving rise to such indemnification obligation. 
 (c)
Conduct of Indemnification Proceedings. Any person entitled to indemnification hereunder shall (i) give prompt notice to the indemnifying party of any claim with respect to which it seeks indemnification and (ii) permit such
indemnifying party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party; provided that any person entitled to indemnification hereunder shall have the right to employ separate counsel and to
participate in the defense of such claim, but the fees and expenses of such counsel shall be at the expense of such person unless (a) the indemnifying party has agreed to pay such fees or expenses, or (b) the indemnifying party shall have
failed to assume the defense of such claim and employ counsel reasonably satisfactory to such person or (c) in the reasonable judgment of any such person, based upon written advice of its counsel, a conflict of interest exists between such
person and the indemnifying party with respect to such claims (in which case, if the person notifies the indemnifying party in writing that such person elects to employ separate counsel at the expense of the indemnifying party, the indemnifying
party shall not have the right to assume the defense of such claim on behalf of such person); and provided, further, that the failure of any indemnified party to give notice as provided herein shall not relieve the indemnifying party
of its obligations hereunder, except to the extent that such failure to give notice shall materially adversely affect the indemnifying party in the defense of any such claim or litigation. It is understood that the indemnifying party shall not, in
connection with any proceeding in the same jurisdiction, be liable for fees or expenses of more than one separate firm of attorneys at any time for all such indemnified parties. No indemnifying party will, except with the consent of the indemnified
party, consent to entry of any judgment or enter into any settlement that does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect of such claim or
litigation. Unless the indemnifying party has failed to assume the defense of a claim in accordance with the requirements of this Section 6, no indemnified party shall settle any action, claim or proceeding effected without the prior written
consent of the indemnified party; provided, however, that the indemnifying party shall not unreasonably withhold its consent. Following indemnification as provided hereunder, the Company shall be subrogated to all rights of the
indemnified parties with respect to all third parties, firms or corporations relating to the matter for which indemnification has been made. 
 (d) Contribution. If for any reason the indemnification provided for in the preceding paragraphs (a) and (b) is unavailable to an indemnified party or insufficient to hold it harmless,
other than as expressly specified therein, then the indemnifying party shall contribute 

 
to the amount paid or payable by the indemnified party as a result of such loss, claim, damage or liability in such proportion as is appropriate to reflect the relative fault of the indemnified
party and the indemnifying party, as well as any other relevant equitable considerations. No person guilty of fraudulent misrepresentation within the meaning of Section 11(f) of the 1933 Act shall be entitled to contribution from any person not
guilty of such fraudulent misrepresentation. In no event shall the contribution obligation of a holder of Registrable Securities be greater in amount than the dollar amount of the proceeds (net of all expenses paid by such holder in connection with
any claim relating to this Section 6 and the amount of any damages such holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission) received by it upon the sale of the
Registrable Securities giving rise to such contribution obligation. 
 7. Miscellaneous. 

(a) Amendments and Waivers. This Agreement may be amended only by a writing signed by the Company and the Required Investors. The
Company may take any action herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company shall have obtained the written consent to such amendment, action or omission to act of the Required Investors.

 (b) Notices. All notices and other communications provided for or permitted hereunder shall be made as set forth in
Section 9.4 of the Purchase Agreement. 
 (c) Assignments and Transfers by Investors. The provisions of this
Agreement shall be binding upon and inure to the benefit of the Investors and their respective successors and assigns. An Investor may transfer or assign, in whole or from time to time in part, to one or more persons its rights hereunder in
connection with the transfer of Registrable Securities by such Investor to such person, provided that such Investor complies with all laws applicable thereto and provides written notice of assignment to the Company promptly after such assignment is
effected, which notice contains an agreement of such transferee to be bound by the provisions hereof. 
 (d) Assignments and
Transfers by the Company. This Agreement may not be assigned by the Company (whether by operation of law or otherwise) without the prior written consent of the Required Investors; provided, however, that in the event that the
Company is a party to a merger, consolidation, share exchange or similar business combination transaction in which the Common Stock is converted into the equity securities of another Person, from and after the effective time of such transaction,
such Person shall, by virtue of such transaction, be deemed to have assumed the obligations of the Company hereunder, the term “Company” shall be deemed to refer to such Person and the term “Registrable Securities” shall be
deemed to include the securities received by the Investors in connection with such transaction unless such securities are otherwise freely tradable by the Investors after giving effect to such transaction. 

(e) Benefits of the Agreement. The terms and conditions of this Agreement shall inure to the benefit of and be binding upon the
respective permitted successors and assigns of the parties. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies,
obligations, or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. 

 (f) Counterparts; Faxes. This Agreement may be executed in two or more counterparts,
each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Any signature page to this Agreement may be delivered via facsimile or other form of electronic transmission, which signature page so
delivered shall be deemed an original. 
 (g) Titles and Subtitles. The titles and subtitles used in this Agreement are
used for convenience only and are not to be considered in construing or interpreting this Agreement. 
 (h) Severability.
Any provision of this Agreement that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof but
shall be interpreted as if it were written so as to be enforceable to the maximum extent permitted by applicable law, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction. To the extent permitted by applicable law, the parties hereby waive any provision of law which renders any provisions hereof prohibited or unenforceable in any respect. 

(i) Further Assurances. The parties shall execute and deliver all such further instruments and documents and take all such other
actions as may reasonably be required to carry out the transactions contemplated hereby and to evidence the fulfillment of the agreements herein contained. 
 (j) Entire Agreement. This Agreement is intended by the parties as a final expression of their agreement and intended to be a complete and exclusive statement of the agreement and understanding of
the parties hereto in respect of the subject matter contained herein. This Agreement supersedes all prior agreements and understandings between the parties with respect to such subject matter. 

(k) Governing Law; Consent to Jurisdiction; Waiver of Jury Trial. This Agreement shall be governed by, and construed in accordance
with, the internal laws of the State of New York without regard to the choice of law principles thereof. Each of the parties hereto irrevocably submits to the exclusive jurisdiction of the courts of the State of New York located in New York County
and the United States District Court for the Southern District of New York for the purpose of any suit, action, proceeding or judgment relating to or arising out of this Agreement and the transactions contemplated hereby. Service of process in
connection with any such suit, action or proceeding may be served on each party hereto anywhere in the world by the same methods as are specified for the giving of notices under this Agreement. Each of the parties hereto irrevocably consents to the
jurisdiction of any such court in any such suit, action or proceeding and to the laying of venue in such court. Each party hereto irrevocably waives any objection to the laying of venue of any such suit, action or proceeding brought in such courts
and irrevocably waives any claim that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum. EACH OF THE PARTIES HERETO WAIVES 

 
ANY RIGHT TO REQUEST A TRIAL BY JURY IN ANY LITIGATION WITH RESPECT TO THIS AGREEMENT AND REPRESENTS THAT COUNSEL HAS BEEN CONSULTED SPECIFICALLY AS TO THIS WAIVER. 

 IN WITNESS WHEREOF, the parties have executed this Agreement or caused their duly authorized
officers to execute this Agreement as of the date first above written. 
  

					
	The Company:	 	POWER SOLUTIONS INTERNATIONAL, INC.
			
		 	By:	 	 /s/ Ryan A. Neely

		 	Name:	 	Ryan A. Neely
		 	Title:	 	President
		
	The Placement Agent:	 	ROTH CAPITAL PARTNERS, LLC
			
		 	By:	 	 /s/ Eric Rindahl

		 	Name:	 	Eric Rindahl
		 	Title:	 	Managing Director

 [Signature Page to
Registration Rights Agreement] 

					
	The Investors:	 		 	
			
		 	By:	 	  

		 	Name:	 	
		 	Title:	 	

 [Signature Page to Registration Rights Agreement] 

 Exhibit A 
 Plan of Distribution 
 The selling shareholders, which as used herein
includes donees, pledgees, transferees or other successors-in-interest selling shares of common stock or interests in shares of common stock received after the date of this prospectus from a selling shareholder as a gift, pledge, partnership
distribution or other transfer, may, from time to time, sell, transfer or otherwise dispose of any or all of their shares of common stock or interests in shares of common stock on any stock exchange, market or trading facility on which the shares
are traded or in private transactions. These dispositions may be at fixed prices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, at varying prices determined at the time of sale, or at negotiated
prices. 
 The selling shareholders may use any one or more of the following methods when disposing of shares or interests
therein: 
  

	 	•	 	 ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; 

 

	 	•	 	 block trades in which the broker-dealer will attempt to sell the shares as agent, but may position and resell a portion of the block as principal to
facilitate the transaction; 

  

	 	•	 	 purchases by a broker-dealer as principal and resale by the broker-dealer for its account; 

 

	 	•	 	 an exchange distribution in accordance with the rules of the applicable exchange; 

 

	 	•	 	 privately negotiated transactions; 

  

	 	•	 	 short sales effected after the date the registration statement of which this Prospectus is a part is declared effective by the SEC;

  

	 	•	 	 through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise;

  

	 	•	 	 through broker-dealers that agree with the selling shareholders to sell a specified number of such shares at a stipulated price per share;

  

	 	•	 	 a combination of any such methods of sale; and 

  

	 	•	 	 any other method permitted by applicable law. 

 The selling shareholders may, from time to time, pledge or grant a security interest in some or all of the shares of common stock owned by them and, if they default in the performance of their secured
obligations, the pledgees or secured parties may offer and sell the shares of common stock, from time to time, under this prospectus, or under an amendment to this 

 
prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act amending the list of selling shareholders to include the pledgee, transferee or other successors in interest as
selling shareholders under this prospectus. The selling shareholders also may transfer the shares of common stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners
for purposes of this prospectus. 
 In connection with the sale of our common stock or interests therein, the selling
shareholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions they assume. The selling shareholders may also
sell shares of our common stock short and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn may sell these securities. The selling shareholders may also enter into option
or other transactions with broker-dealers or other financial institutions or the creation of one or more derivative securities which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus,
which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction). 
 The aggregate proceeds to the selling shareholders from the sale of the common stock offered by them will be the purchase price of the common stock less discounts or commissions, if any. Each of the
selling shareholders reserves the right to accept and, together with their agents from time to time, to reject, in whole or in part, any proposed purchase of common stock to be made directly or through agents. We will not receive any of the proceeds
from this offering. Upon any exercise of the warrants by payment of cash, however, we will receive the exercise price of the warrants. 
 The selling shareholders also may resell all or a portion of the shares in open market transactions in reliance upon Rule 144 under the Securities Act of 1933, provided that they meet the criteria and
conform to the requirements of that rule. 
 Roth Capital Partners, LLC and its affiliates and transferees are, and the other
selling shareholders and any underwriters, broker-dealers or agents that participate in the sale of the common stock or interests therein may be, “underwriters” within the meaning of Section 2(11) of the Securities Act. Any discounts,
commissions, concessions or profit they earn on any resale of the shares may be underwriting discounts and commissions under the Securities Act. Selling shareholders who are “underwriters” within the meaning of Section 2(11) of the
Securities Act will be subject to the prospectus delivery requirements of the Securities Act. 
 To the extent required, the
shares of our common stock to be sold, the names of the selling shareholders, the respective purchase prices and public offering prices, the names of any agents, dealer or underwriter, any applicable commissions or discounts with respect to a
particular offer will be set forth in an accompanying prospectus supplement or, if appropriate, a post-effective amendment to the registration statement that includes this prospectus. 

In order to comply with the securities laws of some states, if applicable, the common stock may be sold in these jurisdictions only
through registered or licensed brokers or dealers. In 

 
addition, in some states the common stock may not be sold unless it has been registered or qualified for sale or an exemption from registration or qualification requirements is available and is
complied with. 
 We have advised the selling shareholders that the anti-manipulation rules of Regulation M under the Exchange
Act may apply to sales of shares in the market and to the activities of the selling shareholders and their affiliates. In addition, to the extent applicable we will make copies of this prospectus (as it may be supplemented or amended from time to
time) available to the selling shareholders for the purpose of satisfying the prospectus delivery requirements of the Securities Act. The selling shareholders may indemnify any broker-dealer that participates in transactions involving the sale of
the shares against certain liabilities, including liabilities arising under the Securities Act. 
 We have agreed to indemnify
the selling shareholders against liabilities, including liabilities under the Securities Act and state securities laws, relating to the registration of the shares offered by this prospectus. 

We have agreed with the selling shareholders to keep the registration statement of which this prospectus constitutes a part effective
until the earlier of (1) such time as all of the shares covered by this prospectus have been disposed of pursuant to and in accordance with the registration statement or Rule 144 under the Securities Act or (2) the date on which all of the
shares may be sold without restriction pursuant to Rule 144 under the Securities Act.

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