Document:

Amended and Restated Limited Liability Company Agreement

 Exhibit 10.5 
 EXECUTION COPY 
 AMENDED AND RESTATED 
 LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 
 A DELAWARE LIMITED
LIABILITY COMPANY 
 THE LIMITED LIABILITY COMPANY INTERESTS REPRESENTED BY THIS AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT HAVE NOT
BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR UNDER THE SECURITIES ACTS OR LAWS OF ANY STATE IN RELIANCE UPON EXEMPTIONS UNDER THOSE ACTS. THE SALE OR OTHER DISPOSITION OF SUCH
MEMBERSHIP INTERESTS IS RESTRICTED AS STATED IN THIS AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT, AND IN ANY EVENT IS PROHIBITED UNLESS THE LLC RECEIVES AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT AND ITS COUNSEL THAT SUCH SALE
OR OTHER DISPOSITION CAN BE MADE WITHOUT REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND ANY APPLICABLE STATE SECURITIES ACTS AND LAWS. BY ACQUIRING MEMBERSHIP INTERESTS REPRESENTED BY THIS AMENDED AND RESTATED LIMITED LIABILITY
COMPANY AGREEMENT, EACH MEMBER REPRESENTS THAT IT WILL NOT SELL OR OTHERWISE DISPOSE OF ITS MEMBERSHIP INTERESTS WITHOUT COMPLIANCE WITH THE PROVISIONS OF THIS AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT AND REGISTRATION OR OTHER
COMPLIANCE WITH THE AFORESAID ACTS AND THE RULES AND REGULATIONS ISSUED THEREUNDER. 

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 AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 

A DELAWARE LIMITED LIABILITY COMPANY 
 THIS AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT of PetroAlgae, LLC, a
Delaware limited liability company (the “LLC”), is made and entered into as of the 16th day of February, 2007 (the
“Effective Date”) by and among XL TechGroup, Inc. (“XLTG”), a corporation organized under the laws of Delaware, and Arizona Science & Technology Enterprises, LLC, an Arizona
limited liability company dba Arizona Technology Enterprises (“AzTE”). Unless otherwise indicated, capitalized words and phrases in this Amended and Restated Limited Liability Company Agreement (this
“Agreement”) shall have the meanings set forth in the Glossary of Terms attached hereto as Exhibit A. 
 At
all times since formation, the LLC and its operations have been governed by that certain Limited Liability Company Agreement entered into by its sole Member prior to the date of this Agreement, XLTG and dated as of October 1, 2006 (the
“Original LLC Agreement”). XLTG and AzTE now seek to amend and restate the Original LLC Agreement in order to add AzTE as a Member and to provide for the future operation of the LLC and to set forth the rights and obligations
of the Members and Directors with respect to the LLC. In consideration of the mutual promises of the parties hereto, and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto,
intending to be legally bound, do hereby agree that the limited liability company agreement of the LLC as of the date of this Agreement shall be amended and restated in its entirety as follows: 
 ARTICLE I 
 FORMATION; CERTAIN
REPRESENTATIONS AND WARRANTIES 
 SECTION 1.1. Formation; General Terms. The LLC was formed upon the filing of a Certificate of
Formation with the Delaware Secretary of State on September 22, 2006. As of the date hereof, the rights and obligations of the LLC and its Members and Directors will be governed by the Act and this Agreement, including all the Exhibits to this
Agreement. 
 SECTION 1.2 Name. The name of the LLC shall be “PetroAlgae, LLC.” The name of the LLC shall be the exclusive
property of the LLC, and no Member shall have any rights in the LLC’s name or any derivation thereof, even if the name contains such Member’s own name or a derivation thereof. The LLC’s name may be changed only by an amendment to the
Certificate of Formation and this Agreement. 
 SECTION 1.3. Purpose. The LLC was formed for the purpose of engaging in, and may
engage in, any lawful act or activity and exercising any powers permitted to limited liability companies organized under the laws of the State of Delaware. 
 SECTION 1.4. Registered Agent; Registered Office. The LLC’s registered agent and registered office are set forth in the Certificate of Formation and may be changed from time to time in accordance with the
Act. 
 SECTION 1.5. Principal Place of Business. The principal place of business of the LLC shall be at 1901 S. Harbor City Blvd.,
Suite 300 Melbourne, FL 32901, or such other location as the Board may determine from time to time. 
 SECTION 1.6. Commencement and
Term. The LLC commenced at the time and on the date appearing in the Certificate of Formation and shall continue until it is dissolved, its affairs are wound up and final liquidating distributions are made pursuant to this Agreement, and a
certificate of cancellation is filed with respect to the LLC in accordance with the Act. 

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 SECTION 1.7. Certain Representations and Warranties. 
 (a) XLTG hereby represents and warrants to AzTE and to the LLC, as of the date hereof, that the execution, delivery and performance of this Agreement have
been duly authorized by all necessary action on the part of XLTG and do not conflict with the organizational documents of XLTG or the LLC or with any agreement or arrangement to which XLTG or the LLC is a party or by which it is bound. This
Agreement constitutes the valid, binding and enforceable agreement of XLTG, and is binding on and enforceable against the LLC. 
 (b) The LLC
represents and warrants to AzTE that (i) the LLC is a limited liability company duly formed, validly existing and in good standing under the laws of the State of Delaware, (ii) the letter (the “Operations Letter”) from the LLC to
AzTE, of even date herewith, sets forth a description of (A) all material business and operating activities engaged in by the LLC, (B) any binding commitment, agreement, contract or understanding the LLC has entered into with any other
Person, (C) all limited liability company interests in the LLC granted to any Person other than XLTG, (D) any material assets acquired by the LLC, (E) the identities of all employees or independent contractors hired or engaged by the
LLC, and (iii) the LLC has no known liabilities (contingent or otherwise) not described in the Operations Letter. 
 (c) AzTE hereby
represents and warrants to XLTG and to the LLC, as of the date hereof, that the execution, delivery and performance of this Agreement have been duly authorized by all necessary action on the part of AzTE and do not conflict with the organizational
documents of AzTE or with any agreement or arrangement to which AzTE is a party or by which it is bound. This Agreement constitutes the valid, binding and enforceable agreement of AzTE. 
 ARTICLE II 
 CAPITAL CONTRIBUTIONS; CAPITAL ACCOUNTS; UNITS 
 SECTION 2.1. Capital Contributions and Capital Accounts. Contemporaneously with its execution of this Agreement, AzTE and the LLC have entered
into the License Agreement. As partial consideration for the License Agreement, AzTE is receiving the Class A Units as provided in this Agreement. As of the date hereof, XLTG has made cash capital contributions to the LLC in the amount of
$488,532. 
 SECTION 2.2. Other Capital Contributions. Subject to the terms and conditions of this Agreement (including without
limitation Section 2.6 and Section 5.2, the Board may from time to time authorize and cause the LLC to issue additional Units, secured or unsecured debt obligations of the LLC, debt obligations of the LLC convertible into
Units, options or warrants to purchase Units, or any combination of the foregoing (collectively, “New Securities”) with such terms and conditions and in exchange for such cash or other property as the Board acting in
accordance with this Agreement may determine; provided, however, no Member shall have any obligation hereunder to contribute additional capital to the LLC beyond what is provided in Section 2.1. Any such New Securities may
be sold to existing Members, Affiliates of existing Members or any other parties at the discretion of the Board acting in accordance with this Agreement. 
 SECTION 2.3. Liability of Members. No Member shall be liable for any debts or losses of capital or profits of the LLC or be required to guarantee the liabilities of the LLC. Except as set forth in
Section 2.1 and Section 3.2 of this Agreement, no Member shall be required to contribute or lend funds to the LLC. 
 SECTION 2.4. Maintenance of Capital Accounts; Withdrawals; Interest. Separate Capital Accounts shall be maintained for each of the Members. Capital Accounts shall be maintained in accordance with the requirements of
Section 704(b) of the Code and the applicable Treasury Regulations thereunder. No Member shall be entitled to withdraw or receive any part of its Capital Account or any distribution with respect to any of its Units except as provided in this
Agreement. No Member shall be entitled to receive any interest on his Capital Contributions or Capital Account except as provided in this Agreement. Each Member shall look solely to the assets of the LLC for the return of its Capital Contributions
and distributions with respect to its Units and, except as 

  

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otherwise provided in this Agreement, shall have no right or power to demand or receive any property or cash from the LLC. No Member shall have priority over
any other Member as to the return of its Capital Contributions, distributions or allocations, except as provided in this Agreement. 
 SECTION 2.5. Classes of Members and Units. Each Member’s limited liability company interest in the LLC shall be denominated in Units, and, except as otherwise specifically provided herein, the relative rights, privileges,
preferences and obligations with respect to the Member’s limited liability company interest in the LLC shall be determined under this Agreement and the Act based upon the number and the class of Units held by the Member. The Units of the
Members may be represented by a certificate. The exact contents of any such certificate shall be determined by Board. In addition to being reflected on any such certificate, the number and class of Units held by a Member shall be reflected on the
Information Exhibit, provided that, with respect to Class B Units, the Information Exhibit shall specify only the aggregate number of Class B Units outstanding (and, if applicable, reserved for issuance pursuant to any outstanding options or other
rights to acquire Class B Units) from time to time (with the number of Class B Units issued or issuable to any Person being reflected on the books and records of the LLC but not specified on the Information Exhibit). The Board shall cause the LLC to
(i) update the Information Exhibit so as to reflect any change in the information set forth on the Information Exhibit and (ii) furnish each holder of Units (other than any holder holding Class B Units only) a true, correct and complete
copy of such updated Information Exhibit not later than ten (10) days after the effective date of such change. The classes of Units are as follows: 
 (a) Class A Units. Class A Units shall have all the rights, privileges, preferences, and obligations as are specifically provided for in this Agreement for Class A Units, and as may
otherwise be generally applicable to all classes of Units, unless such application is specifically limited to one or more other classes of Units. 
 (b) Class B Units. Class B Units shall consist of those Units issued under an Equity Incentive Plan. The aggregate of all outstanding Class B Units at any time shall not exceed fourteen percent (14%) of the total
outstanding Units at such time. Unless specifically required otherwise by non-waivable provisions of the Act, and notwithstanding anything contained herein to the contrary, Class B Units shall not be entitled to vote on any matter submitted to the
Members, but shall have such other rights, privileges, preferences, and obligations as are specifically provided for in this Agreement for Class B Units. On the Effective Date, there are no Class B Units outstanding. Immediately prior to an IPO,
each Class B Unit shall be converted, automatically and without action by any Person, into a Class A Unit. 
 SECTION 2.6. AzTE
Anti-Dilution Protection. Each of the Members acknowledges their mutual intention that, at all times after the Effective Date and prior to the closing of a Qualified IPO, AzTE shall hold the number of Class A Units equal (on an as-converted
basis) to five percent (5%) of the Fully Diluted Capitalization of the Company. Accordingly, in the event that, at any time after the effectiveness of this Agreement but prior to the closing of the Qualified IPO, the Company issues any
Convertible Securities to any Person other than AzTE, AzTE shall be issued, contemporaneously and for no further consideration, such number of additional Class A Units as may be necessary in order for the aggregate number of Units held by AzTE
(on an as-converted basis) to be equal, as of immediately after such issuance, to five percent (5%) of the Fully Diluted Capitalization of the Company. 
 ARTICLE III 
 DISTRIBUTIONS 
 SECTION 3.1. Distributions. Subject to the other provisions of this Agreement, prior to the dissolution of the LLC, the LLC shall distribute cash
or property in such amounts, at such times and as of such record dates as the Board determines, as long as such distributions are: 
  

	 	(a)	95% to XLTG and 5% to AzTE until the XLTG Unreturned Capital Contribution has been reduced to zero; and 

  

	 	(b)	thereafter, to all of the Members in proportion to their Sharing Percentages. 

  

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 SECTION 3.2. Withholding. In the event any federal, foreign, state or local jurisdiction
requires the LLC to withhold taxes or other amounts with respect to any Member’s allocable share of Profits, taxable income or any portion thereof, or with respect to distributions, the LLC shall withhold from distributions or other amounts
then due to such Member an amount necessary to satisfy the withholding responsibility and shall pay any amounts withheld to the appropriate taxing authorities. In such a case, for purposes of this Agreement the Member for whom the LLC has paid the
withholding tax shall be deemed to have received the withheld distribution or other amount due and to have paid the withholding tax directly and such Member’s share of cash distributions or other amounts due shall be reduced by a corresponding
amount. If it is anticipated that at the due date of the LLC’s withholding obligation the Member’s share of cash distributions or other amounts due is less than the amount of the withholding obligation, the Member with respect to which the
withholding obligation applies shall pay to the LLC the amount of such shortfall within thirty (30) days after notice by the LLC. In the event a Member fails to make the required payment when due hereunder, and the LLC nevertheless pays the
withholding, in addition to the LLC’s remedies for breach of this Agreement, the amount paid shall be deemed a recourse loan from the LLC to such Member bearing interest at the Default Rate, and the LLC shall apply all distributions or payments
that would otherwise be made to such Member toward payment of the loan and interest, which payments or distributions shall be applied first to interest and then to principal until the loan is repaid in full. 
 SECTION 3.3. Tax Distributions. To the extent that funds in the LLC are legally available for distribution, the LLC shall make distributions no
less frequently than annually to Members for payment of applicable U.S. federal, state and local taxes on any substantial amount of net realized taxable income. The amount of any such tax distribution will take into account previously allocated
losses and will be based on an assumed aggregate tax rate of forty percent (40%). In the event that (i) the Capital Account of any Member is allocated an item of Loss offsetting part or all of an item of Profits previously allocated to such
Member’s Capital Account and for which the Member received a tax distribution pursuant to this Section 3.3 and (ii) the Member realizes a tax benefit from such allocation of Loss, then such Member shall return such prior tax
distribution to the LLC to the extent of such tax benefit, determined by the Board. Any distribution made pursuant to this Section 3.3 shall be treated as an advance against distributions to be made subsequently pursuant to
Section 3.1 or Section 9.3. 
 ARTICLE IV 
 ALLOCATIONS 
 SECTION 4.1. Accounting. The LLC shall maintain a Capital
Account for each of the Members. 
 SECTION 4.2 Allocations of Profits and Losses; Accounting. Except as provided in the Regulatory
Allocations Exhibit, Profits and Losses of the LLC shall be allocated to the Members in accordance with their respective Sharing Percentages. If any Units are transferred or any of the Members’ percentages of Units of a particular class
relative to aggregate Units of such class are increased or decreased by reason of the admission of one or more new Members or otherwise during any fiscal year, each item of income, gain, loss, deduction or credit of the LLC for that fiscal year
shall be allocated between the transferor and the transferee (or the Members whose percentages of Units of a particular class relative to aggregate Units of such class were increased or decreased) pro rata based on the number of calendar days before
and after such transfer or increase or decrease (counting the day of the transfer as a day in which the transferor was the owner of the Units or the day of percentage increase or decrease as a day on which the pre-increase and pre- decrease
percentages were in effect). For purposes of this Agreement, the term “Units” shall be deemed to include shares of capital stock received in exchange for Units upon an incorporation of the LLC pursuant to Section 351 of the Code.

 SECTION 4.3. Code Section 704(c) Tax Allocations. Income, gain, loss, and deduction with respect to any Section 704(c)
Property shall, solely for tax purposes, be allocated among the Members so as to take account of any variation between the adjusted basis of such property to the LLC for federal income tax purposes and its initial Agreed Value pursuant to any
allowable method under Code § 704(c) and the Treasury Regulations promulgated thereunder. Any elections or decisions relating to allocations under this Section 4.3 shall be determined by the Board. Allocations pursuant to this
Section 4.3 are solely for purposes of federal, state, and local taxes and shall not be taken into account in computing any Member’s Capital Account or share of Profits, Losses, other items, or distributions pursuant to any
provision of this Agreement; provided, however, any allocation under Treasury Regulation Section 1.704-3 with respect to Section 704(c) Property shall be disregarded in determining the Adjusted Taxable Income allocated to the
Members for purposes of computing distributions pursuant to Section 3.1. 
  

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 SECTION 4.4. Miscellaneous. 
 (a) Allocations Attributable to Particular Periods. For purposes of determining Profits, Losses or any other items allocable to any period,
such items shall be determined on a daily, monthly, or other basis, as determined by the Board using any permissible method under Code § 706 and the Treasury Regulations thereunder. 
 (b) Other Items. Except as otherwise provided in this Agreement, all items of LLC income, gain, loss, deduction, credit and any other
allocations not otherwise provided for shall be divided among the Members in the same proportion as they share Profits or Losses, as the case may be, for the year. 
 (c) Tax Allocations. All items and taxable income, gain, loss and deduction shall be allocated among the Members, as to the extent possible, is the same proportions as corresponding items of income,
gain, loss and deduction for purposes of adjusting Capital Accounts. 
 (d) Tax Consequences; Consistent Reporting. The Members
are aware of the income tax consequences of the allocations made by this Article IV and by the Regulatory Allocations and hereby agree to be bound by those allocations as reflected on the information returns of the LLC in reporting their
shares of LLC income and loss for income tax purposes. Each Member agrees to report his distributive share of LLC items of income, gain, loss, deduction and credit on his separate return in a manner consistent with the reporting of such items to it
by the LLC. Any Member failing to report consistently shall notify the Internal Revenue Service of the inconsistency as required by law and shall reimburse the LLC for any legal and accounting fees incurred by the LLC in connection with any
examination of the LLC by federal or state taxing authorities with respect to the year for which the Member failed to report consistently. 
 ARTICLE V 
 MANAGEMENT 
 SECTION 5.1. Management by the Board. 
 (a) General Authority of the Board; Size and
Composition. Subject to the provisions of this Agreement (including, without limitation, Sections 5.2 and 5.3(a)(ii)) and any non-waivable provisions of the Act or other applicable law, the Board shall have complete
authority and exclusive control over the management of the business and affairs of the LLC and may take any action without the approval of any Member. Decisions or actions relating to the LLC that are made or approved by the Board of Directors (or,
with respect to matters requiring a vote, consent or other action of the Members hereunder or pursuant to non-waivable provisions of the Act or other applicable law, by the Members) in accordance with this Agreement shall constitute decisions or
actions by the LLC and shall be binding on each Member, Director, Officer and employee of the LLC. Except as may be expressly provided otherwise elsewhere in this Agreement, no Member (in its capacity as such) shall have any right, power or
authority to act for or on behalf of the LLC, to do any act that would be binding on the LLC, or to incur any expenditures on behalf of the LLC. The number of Directors shall be fixed from time to time by the Members holding a majority of Units
entitled to vote, voting together as a single class; provided, however, the number of Directors as of the date hereof shall be three (3). The individuals serving as Directors as of the date hereof are Michael Nadolny, Harold Gubnitsky
and David Szostak. Each Director shall serve until his successor is duly appointed or until his earlier death, resignation or removal. Any Director may be removed for any reason by Members then holding a majority of the Units then outstanding and
entitled to vote. Vacancies on the Board shall be filled by Members then holding a majority of the Units then outstanding and entitled to vote or, if any Person is entitled to designate such Director, then by such Person. 
 (b) AzTE Observer Rights. At all times prior to the Qualified IPO, the LLC shall (i) permit a representative of AzTE (the “AzTE
Observer”) to attend all meetings of the Board and all meetings of committees of the Board (if any) (as well as any other meeting wherein any member of the Board is invited to attend in such 

  

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member of the Board’s capacity as a member of the Board), in a non-voting, participating observer capacity, and (ii) deliver to the AzTE Observer
all notices of any such meetings, as well as copies of all written materials delivered to any member of the Board (in such member of the Board’s capacity as a member of the Board) or any committee of the Board, in each case at the same time as
such notices and other written materials are delivered to members of the Board or any committee of the Board, as applicable. For the avoidance of doubt, the AzTE Observer shall be permitted to participate in all discussions taking place during any
meeting that the AzTE Observer is entitled to attend hereunder, but shall have no right to, and shall not, vote with respect to any matter to be acted on at any such meeting, and shall not be a Director within the meaning of this Agreement. As of
the Effective Date, the AzTE Observer is Peter Slate. 
 (c) Officers. The officers of the LLC (the “Officers”) shall
consist of a Chief Executive Officer, a Chief Operating Officer, a Secretary, an Assistant Secretary, and such other Officers with such other titles, authority, duties and responsibilities as set forth herein or as the Board shall determine (subject
to Section 5.3(a)(iii)). As of the Effective Date, the LLC has four Officers: a Chief Executive Officer, Michael Nadolny, a Chief Operating Officer, James McCreary, a Secretary, Mark R. Mohler and an Assistant Secretary, David P.
Szostak. Unless otherwise specifically stated herein, all decisions relating to day-to-day operation and management of the LLC and its assets and affairs shall be made by the Chief Executive Officer in accordance with the directions of and subject
to the review of the Board. In the absence of the Chief Executive Officer, the Chief Operating Officer shall have the authority of the Chief Executive Officer. The Secretary shall: (i) keep accurate membership records for the LLC;
(ii) maintain records of and, whenever necessary, certify all proceedings of the Member of the LLC; (iii) receive notices required to be sent to the Secretary and to keep a record of such notices in the records of the Company; and
(iv) perform other duties prescribed by the Chief Executive Officer. The Assistant Secretary shall perform the duties of the Secretary in the absence of the Secretary or at the direction of the Secretary. The Board may create additional offices
of the LLC as the Board may determine. The Board shall institute a signature policy for the LLC, which may be amended by the Board from time to time, in order to set forth the procedures for the approval and execution of documents on behalf of the
LLC and the offices and individuals authorized to execute documents on behalf of the LLC. Notwithstanding anything to the contrary in this Agreement, neither the appointment of any Officer nor the delegation of authority to any Officer pursuant to
Section 5.3(a)(iii) shall relieve the Board, or any Director, of its, his or her duties to the Company specified in Section 5.3(a)(ii) or of any liability for failure to properly discharge such duties (regardless of whether
any individual appointed to serve in a particular Officer position was chosen with reasonable care). 
 (d) Special Meetings.
Special meetings of the Board may be held at any time or place whenever called by the Chief Executive Officer of the LLC, or by written request of any two (2) Directors, notice thereof being given to each Director and the AzTE Observer by the
Secretary of the LLC or other Person calling the meeting. Notwithstanding the foregoing, meetings may be held at any time without formal notice provided all of the Directors and the AzTE Observer are present or those not present shall at any time
waive or have waived notice thereof. 
 (e) Notice. Except as otherwise specifically provided herein, notice of any special
meetings shall be given at least ten (10) days previous thereto by written notice delivered personally, by facsimile transmission or by major express mail carrier or courier. If given by express mail or courier, such notice shall be deemed to
be delivered on the date shown on the tracking records for such major express mail carrier or courier. 
 (f) Meetings by any Form of
Communication. The Board shall have the power to permit any and all Directors and the AzTE Observer to participate in a regular or special meeting by, or conduct the meeting through the use of any means of communication by which all
Directors and the AzTE Observer participating may simultaneously hear each other during the meeting. A Director (or the AzTE Observer) participating in a meeting by this means is deemed to be present in person at the meeting. 
 (g) Quorum. A majority of the members of the Board as then constituted shall constitute a quorum for the transaction of business, but a
lesser number may adjourn any meeting and the meeting may be held as adjourned without further notice. When a quorum is present at any meeting, a majority of the Directors present thereat shall decide any question brought before such meeting, except
as otherwise provided by law or by this Agreement. The fact that a Director has an interest in a matter to be voted on by the meeting shall not prevent his being counted for purposes of a quorum. 
  

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 (h) Action by Written Consent of Directors. Any action required to be taken at a
meeting of the Board, or any other action which may be taken at a meeting of the Board, may be taken without a meeting by written consent if (i) all (but not less than all) of the Directors then serving in such capacity consent in writing to
taking such action without a meeting, and (ii) the AzTE Observer is furnished a copy of such written consent not less than two (2) business days prior to its execution by any Director. The action must be evidenced by one or more written
consents describing the action taken and signed by each of the Directors then serving, and shall be filed with the LLC records reflecting the action taken. The LLC shall provide a copy of each such written consent to the AzTE Observer as soon as
practicable after the applicable actions have been approved (but in any event not later than ten (10) days after such approval). 
 SECTION 5.2. AzTE Consent Required. Notwithstanding anything contained herein to the contrary, other than with the prior written consent of AzTE (which consent may be withheld by AzTE in its sole and absolute discretion), until a
Qualified IPO has occurred, neither the LLC, the Board, any Member, any Officer, nor any other Person (pursuant to delegated authority or otherwise) shall have any authority to, and none of them shall, directly or indirectly: 
 (a) Cause or permit the LLC to issue any New Securities that are dilutive to AzTE’s rights to allocations of profit and loss, voting rights or
distributions or otherwise adverse to any of AzTE’s other rights as set forth in this Agreement. 
 (b) Cause or permit the LLC to merge
with or into or consolidate with any other entity unless, as of immediately after such merger or consolidation, (i) XLTG continues to own, directly or indirectly, at least a majority of the voting power of all Units, shares of capital stock, or
other equity securities or interests (as applicable) of the surviving or resulting entity, and (ii) neither XLTG nor any Affiliate of XLTG other than the LLC and its Subsidiaries receives any cash or other consideration in connection with such
transaction (provided, however, that this Section 5.2(e) shall not apply to any transaction effected pursuant to Section 7.7 or Section 7.9); 
 (c) Cause or permit any amendment to this Agreement or the certificate of formation of the LLC (including, without limitation, by merger) unless such amendment (i) does not increase the liability or obligations
of AzTE hereunder in any respect, and (ii) does not adversely affect AzTE’s rights hereunder (in AzTE’s capacity as a holder of Units or otherwise) including, but not limited to, with respect to allocations of profit and loss, voting
rights or distributions; 
 (d) Cause or permit the LLC to make any distribution to a Member other than as set forth in
Article III, or to redeem, retire, repurchase or otherwise acquire any Units (other than repurchases of incentive equity on terms set forth in the grant agreement or option); 
 (e) Cause or permit the LLC to undertake any public offering of its securities that is not a Qualified IPO; 
 (f) Cause or permit the LLC to license or assign any of its intellectual property to any joint venture or Subsidiary whereby XLTG or any Affiliate of
XLTG other than the LLC holds an equity interest in such joint venture or Subsidiary; 
 (g) Cause the LLC to borrow funds from XLTG unless:
(i) such borrowing bears interest at a rate per annum of no more than (x) the interest rate under which XLTG has borrowed money from third parties in arm’s length transactions or (y) if XLTG has not borrowed in order to advance
such funds, the prevailing market terms, but in no event shall the rate in (x) or (y) be greater than the prime rate plus 2%, (ii) any interest or other current payments by the LLC in respect of such borrowing are accrued and paid
only upon maturity of the debt and (iii) XLTG agrees that, upon maturity, acceleration or prepayment of the indebtedness, it will subordinate its rights to repayment to AzTE for the amount of such repayment which would have been distributed to
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of the LLC rather than loaned and AzTE shall be either paid such subordinated amount pro rata along with to any payment to XLTG or, in the event that such
payment cannot be made directly to AzTE, the payment may be made in full to XLTG and XLTG shall then be required to pay 5% of any such payment to AzTE as promptly as practicable; 
 (h) Cause or permit the LLC to obtain goods or services from XLTG or any of its Affiliates on terms less favorable to the LLC than if such goods or
services were provided by an unrelated third party engaged in the business of providing such goods or services. 
 (i) Cause or permit the
LLC to waive any rights it has or may have against XLTG or any of XLTG’s other Affiliates, employees or agents; or 
 (j) Cause or
permit the LLC to enter into any agreement, commitment or undertaking to do any of the foregoing. 
 For purposes of this
Section 5.2, the term “XLTG” shall include any other Person holding, at the relevant time, Units representing a majority of the voting power of all Units outstanding at such time. The rights contained in this
Section 5.2 shall not apply to, and shall cease and become void contemporaneously with a Qualified IPO. 
 SECTION 5.3 Duties
of Members and Directors; Limitation of Liability; Indemnification. 
 (a) To the fullest extent permitted by the Act and other applicable
law, and in all instances to the extent not inconsistent with the specific provisions of the Certificate of Formation or this Agreement, it is the intention of the parties that: 
 (i) The Members in their respective capacities as such shall be subject to fiduciary and similar duties only to the extent that such duties are applicable
to stockholders of a for-profit stock corporation organized and existing under the DGCL to which provisions of Subchapter XIV of the DGCL, 8 Del. Ch §§ 341 ff., are not applicable (such a corporation, a “Delaware Corporation”),
provided that nothing herein shall be interpreted to eliminate the implied contractual covenant of good faith and fair dealing or to limit or eliminate liability for any act or omission that constitutes a bad faith violation of the implied
contractual covenant of good faith and fair dealing. 
 (ii) The Directors in their respective capacities as such shall have the rights,
powers, authority set forth in this Agreement. The Directors in their respective capacities as such shall have the duties and responsibilities of directors of a board of directors of a Delaware Corporation, as such rights, powers, authority, duties
and responsibilities are interpreted and defined by decisions of state and federal courts having jurisdiction to interpret and define the same. Subject to, but without limiting the generality of, the foregoing, (X) all Directors shall, with
respect to their actions and conduct in their respective capacities as such, be subject to the fiduciary duties of care, loyalty and disclosure applicable to directors of a Delaware Corporation, and (Y) the Board of Directors shall act only
collectively, and no Director acting individually in his capacity as such shall have any right, power or authority to bind the LLC (except that a Director who is also an Officer may bind the LLC in his capacity as an Officer if he is authorized to
do so in such capacity). 
 (iii) Those Officers with titles expressly referenced in the DGCL or customarily used in a Delaware Corporation,
in their respective capacities as such, shall, unless otherwise provided herein or determined by the Board, have the statutory and customary rights, powers, authority, duties and responsibilities of officers with similar titles of a Delaware
Corporation. Without limiting the generality of the foregoing, without the approval of the Board of Directors or, to the extent required hereby or by non-waivable provisions of applicable law, of the Members, no Officer shall have any right, power
or authority to cause the LLC to enter into any transaction or to take any other action which would, if the LLC were a Delaware Corporation, require a vote or other approval of the board of directors or the stockholders of such Delaware Corporation.
The Members and the Board of Directors hereby delegate to each Officer such rights, powers and authority with respect to the management of the business and affairs of the LLC as may be necessary or advisable to effect the provisions of
Section 5.1(c) or this Section 5.3(a)(iii). 
  

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 (b) Each Person who is or was a Director or Officer of the LLC or the AzTE Observer (each, a
“Covered Person”) shall have no liability to the LLC or to any Member or Director for any loss suffered by the LLC which arises out of any action or inaction by such Covered Person with respect to the LLC if (i) such Covered Person so
acted or omitted to act in accordance with applicable standards of conduct specified in Section 5.3(a), and (ii) such action or omission did not constitute willful misconduct, gross negligence or fraud. 
 (c) The Covered Persons shall be indemnified by the LLC against any and all claims, demands and losses whatsoever if: (i) the indemnitee conducted
himself in good faith; and (ii) the indemnitee reasonably believed (x) in the case of conduct in his official capacity with the LLC, that his conduct was in the LLC’s best interests and in accordance with the provisions of this
Agreement, and (y) in all other cases, that his conduct was at least not opposed to the LLC’s best interests; and (iii) in the case of any criminal proceeding, the indemnitee had no reasonable cause to believe his conduct was
unlawful. The payment of any amounts for indemnification shall be made before any distributions are made by the LLC. No Member shall have any obligation to provide funds for any indemnification obligation hereunder. To the fullest extent permitted
by law, the indemnification and advances provided for herein shall include expenses (including attorneys’ fees), judgments, penalties, fines and amounts paid in settlement, provided that any advances shall be made only upon receipt by the LLC
of the indemnitee’s undertaking to repay the amounts advanced in full if it is finally determined that the indemnittee is not entitled to indemnification under this Section 5.3. The indemnification provided herein shall not be
deemed to limit the right of the LLC to indemnify any other Person for any such expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement to the fullest extent permitted by law, both as to action in his official
capacity and as to action in another capacity while holding such office. 
 (d) Notwithstanding the foregoing, the LLC shall not indemnify
any such indemnitee who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the name of the LLC to secure a judgment in its favor against such indemnitee with respect to any claim,
issue or matter as to which the indemnitee shall have been adjudged to be liable to the LLC, unless and only to the extent that, a court of competent jurisdiction shall determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, such indemnitee is fairly and reasonably entitled to indemnity for such expenses which such court shall deem proper. In addition, notwithstanding anything to the contrary herein, no Covered Person shall be
entitled to indemnification under this Section 5.3 with respect to any action, suit or proceeding initiated by such Covered Person against the LLC or any of its Subsidiaries, or against any Member or any of its Affiliates, unless such
initiation was approved in advance by the Board (or, with respect to any action, suit or proceeding against AzTE or any of its Affiliates, by AzTE). 
 (e) The rights to indemnification and advancement of expenses set forth in this Section 5.3 are intended to be greater than those which are otherwise provided for in the Act, are contractual between the
LLC and the Person being indemnified, his heirs, executors and administrators, and, with respect to this Section 5.3 are mandatory, notwithstanding a Person’s failure to meet the standard of conduct required for permissive
indemnification under the Act, as amended from time to time. The rights to indemnification and advancement of expenses set forth in this Section 5.3 are nonexclusive of other similar rights which may be granted by law, the LLC’s
Certificate of Formation, a resolution of the Board or the Members or an agreement with the LLC, which means of indemnification and advancement of expenses are hereby specifically authorized. 
 (f) Any amendment or modification of the provisions of this Section 5.3, either directly or by the adoption of an inconsistent provision,
shall be prospective only and shall not adversely affect any right or protection set forth herein existing in favor of a particular individual at the time of such repeal or modification. In addition, if an amendment to the Act limits or restricts in
any way the indemnification rights permitted by law as of the date hereof, such amendment shall apply only to the extent mandated by law and only to activities of Persons subject to indemnification under this Section 5.3 which occur
subsequent to the effective date of such amendment. 
  

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 ARTICLE VI 
 MEMBER ACTION AND MEETINGS 
 SECTION 6.1. Actual Meetings. 
 (a) Meetings of the Members may be called by any Member or group of Members who hold, individually or collectively, at least twenty-five percent
(25%) of the Units entitled to vote, by notice to the other Members setting forth the date and time of the meeting and the matters proposed to be acted upon at the meeting. Such meetings shall be held at such place as may be designated by the
Members giving notice. Notice of any meeting shall be given pursuant to Section 12.1 below to all Members not fewer than five (5) nor more than thirty (30) days prior to the meeting. Notice of any meeting of the Members shall
be deemed to have been waived by attendance at the meeting, unless the Member attends the meeting solely for the purpose of objecting to notice and so objects at the beginning of the meeting. Members may attend and vote in person or by proxy at such
meeting, and the LLC shall make reasonable arrangements to permit Members to attend and vote at meetings by telephone. Any vote or consent of the Members may be given at a meeting of Members or may be given in accordance with the procedure
prescribed in Section 6.2 for written consent to action in lieu of actual meetings. The presence in person of Members sufficient to take the proposed action as set forth in this Agreement shall constitute a quorum at all meetings of the
Members. 
 (b) Meetings of the Members may be held via conference call with no physical location designated as the place of the meeting,
provided that all Persons on the conference call can hear and speak to one another and notice of the conference call is given or waived as required by this Section 6.1. The Board shall be responsible for arranging the conference call and
shall specify in the notice of the conference call meeting the method by which the Members can participate in the conference call. 
 SECTION 6.2. Written Consent to Action in Lieu of Actual Meetings. Any action that is permitted or required to be taken by Members may be taken or ratified by written consent setting forth the specific action to be taken, and signed
by those holders of Units required in order to take the specified action. A copy of each such written consent shall be given to the Members in the same manner as contemplated by Section 228 of the DGCL with respect to written consents of
stockholders, except that no such copy need be (but may be) given to any Member holding solely Class B Units. 
 ARTICLE VII

 TRANSFER OF INTERESTS 
 SECTION 7.1. In General. Except in the case of a Qualified IPO or a Qualified Drag-Along Transaction or, if not in the course of a Qualified IPO or Qualified Drag-Along Transaction, as otherwise set forth in this Article VII,
a Member may not Transfer, directly or indirectly, all or any portion of its Units. Any Transfer which does not comply with the provisions of this Article VII shall be void; provided, however, in the event that a court of competent
jurisdiction finds in an order that any restriction on transfer contained in this Section 7.1 is unenforceable, then the transfer sought to be effected shall be deemed an Optional Purchase Event (as defined below) and all time periods
prescribed hereinafter shall be deemed to run from the date on which such court’s order becomes final and unappealable. 
 SECTION 7.2. Limited Exception for Transfers. Except as may be provided herein with respect to Units of a particular class (other than Class A Units), and except as may be set forth in a separate written agreement
between the LLC and the relevant Member, a Member may Transfer all or any portion of its Units if (i) the Transfer is a Permitted Transfer as described in Section 7.6 or (ii) each of the following conditions is
satisfied:  
 (a) Prior Notice. At least thirty (30) days prior to any proposed Transfer of Units otherwise
permitted pursuant to this Section 7.2, the Member (the “Selling Unitholder”) proposing to Transfer all or any portion of its Units delivers the OPE Notice to the LLC. 
  

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 (b) Assignment Documents. The Selling Unitholder and its transferee execute,
acknowledge, and deliver to the LLC such instruments of transfer and assignment with respect to such transaction as are in form and substance reasonably satisfactory to the LLC, including, without limitation, the written agreement of the transferee
to assume and be bound by all of the obligations of the transferor under this Agreement, including any obligation to make Capital Contributions. 
 (c) Securities Law Compliance. Either (i) the Transfer is to the heirs, devisees or legatees of a deceased individual Member, (ii) the Units are registered under the Securities Act and the rules and regulations
thereunder, and any applicable securities laws, or (iii) the LLC and its counsel determine that the sale, assignment or transfer qualifies for an exemption from the registration requirements of the Securities Act and any applicable securities
laws. The LLC has no obligation or intention to register Units for resale under any federal or state securities laws or to take any action which would make available any exemption from the registration requirements of such laws. 
 (d) Transfer Notification. Such Member provides the LLC with the notification required by Code § 6050K(c)(1). 
 (e) Rights of First Refusal. If the proposed Transfer is an Optional Purchase Event, the Selling Unitholder shall have complied with all
relevant provisions contained elsewhere in this Article VII (and the time periods described thereon shall apply in lieu of the 30-day notice in Section 7.2(a)). 
 Any attempted sale, assignment or Transfer with respect to which any of the above conditions have not been satisfied shall be null and void, and the LLC
shall not recognize the attempted purchaser, assignee, or transferee for any purpose whatsoever, and the Member attempting such sale, transfer or assignment shall have breached this Agreement for which the LLC and the other Members shall have all
remedies available at law or in equity. 
 SECTION 7.3. Admission of Assignees as Members. No Person taking or acquiring, by whatever
means, any Units from any Member in the LLC shall be admitted as a Member unless such Person: 
 (a) Elects to become a Member by executing
and delivering such Person’s written acceptance and adoption of the provisions of this Agreement; and 
 (b) Executes, acknowledges, and
delivers to the LLC such other instruments as the LLC may reasonably deem necessary or advisable to effect the admission of such Person as a Member. 
 The Board shall amend the Information Exhibit from time to time to reflect the admission of Members pursuant to this Section 7.3. A transferee of Units that fails to be admitted as a Member as a result of
its noncompliance with the requirements of this Section 7.3 shall, subject to the provisions of Section 8.3, be an assignee with those rights and obligations as set forth in the last sentence of Section 8.3.

 SECTION 7.4. Distributions and Allocations With Respect to Transferred Units. If any Units are sold, assigned, or transferred
during any Fiscal Year in compliance with the provisions of this Article VII, then (i) Profits, Losses, and all other items attributable to such Units for such period shall be divided and allocated between the transferor and the
transferee by taking into account their varying interests during such Fiscal Year in accordance with Code § 706(d), using any conventions permitted by the Code and selected by the Board; (ii) all distributions on or before the date of such
transfer shall be made to the transferor, and all distributions thereafter shall be made to the transferee; and (iii) the transferee shall succeed to and assume the Capital Account and other similar items of the transferor to the extent related
to the transferred Units. Solely for purposes of making the allocations and distributions, the LLC shall recognize such transfer not later than the end of the calendar month during which the LLC receives notice of such transfer. If the LLC does not
receive a notice stating the date the Units were transferred and such other information as the LLC may reasonably require within thirty (30) days after the end of the Fiscal Year during which the transfer occurs, then all of such items shall be
allocated, and all distributions shall be made to the Person, who, according to the books and records of the LLC on the last day of the Fiscal Year during which the transfer occurs, was the owner of the Units. Neither the LLC nor any Director shall
incur any liability for making allocations and distributions in accordance with the provisions of this Section 7.4, whether or not such Person had knowledge of any transfer of ownership of any Units. 
  

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 SECTION 7.5. Optional Purchase of Units. 
 (a) Optional Purchase Event; OPE Notice. If an Optional Purchase Event occurs with respect to any holder of Units, such Person (the
“Selling Member”) shall immediately deliver written notice of such occurrence (the “OPE Notice”) to the LLC and to each other Member excluding any Member holding only Class B Units (each Member to which the OPE Notice is so
required to be delivered, an “Eligible Member”), in the manner prescribed in Section 12.1. The OPE Notice must specify: (i) the name and address of the party to which the Selling Member proposes to Transfer any Units or
any interest therein (the “Offeror”), (ii) the number and class of Units the Selling Member proposes to Transfer (the “Offered Units”), (iii) the consideration per Unit to be delivered to the Selling Member for the
proposed Transfer, and (d) all other material terms and conditions of the proposed transaction. If the Person with respect to whom the Optional Purchase Event has occurred does not provide the OPE Notice and if the LLC determines that Optional
Purchase Event has occurred, the LLC shall provide to each Eligible Member the notice that should have been sent by the Person with respect to whom the Optional Purchase event has occurred. For purposes of this Section 7.5(a), an
Optional Purchase Event described in clause (ii) of Section 7.5(e) shall be deemed to constitute a Transfer by the Selling Member of all Units held by such Member, and the consideration per Unit and the other terms and conditions of
such Transfer shall otherwise be as specified in, and subject to, the provisions of Section 7.5(e). 
 (b) LLC Option to
Purchase. 
 (i) Subject to Section 7.5(d), the LLC shall have the first option (the “LLC Option”) to purchase
all or any part of the Offered Units for the consideration per Unit and on the terms and conditions specified in the OPE Notice (or in Section 7.5(e), as applicable). The LLC must exercise the LLC Option no later than 20 days after such
OPE Notice is deemed under Section 12.1 to have been delivered to it, by written notice to the Selling Member. 
 (ii) In the
event the LLC does not exercise the LLC Option within such 20-day period with respect to all of the Offered Units, the LLC shall, by the last day of such period, give written notice of that fact to each Eligible Member (the “Eligible Member OPE
Notice”). The Eligible Member OPE Notice shall specify the number of Offered Units not purchased by the LLC (the “Remaining Units”). 
 (iii) In the event the LLC duly exercises the LLC Option to purchase all or part of the Offered Units, the closing of such purchase shall take place at the offices of the LLC on the later of (A) the date five days after the expiration
of such 20-day period or (B) the date that the Eligible Members consummate their purchase of Remaining Units under Section 7.5(c)(iii). 
 (c) Eligible Members’ Option to Purchase. 
 (i) Subject to Section 7.5(d),
each Eligible Member shall have an option (the “Eligible Member Option”), exercisable for a period of 15 days from the date of delivery of the Eligible Member OPE Notice, to purchase, on a pro rata basis according to the number of Units
owned by such Eligible Member, the Remaining Units for the consideration per Unit and on the terms and conditions set forth in the OPE Notice (or in Section 7.5(e), as applicable). Such option shall be exercised by delivery by such
Eligible Member of written notice to the Secretary of the LLC. Alternatively, each Eligible Member may, within the same 15-day period, notify the Secretary of the LLC of its desire to participate in the Transfer of the Units on the terms set forth
in the OPE Notice (or in Section 7.5(e), as applicable), and the number and class of Units it wishes to Transfer. 
 (ii) In the
event options to purchase have been exercised by the Eligible Members with respect to some but not all of the Remaining Units, those Eligible Members who have exercised their options within the 15-day period specified in
Section 7.5(c)(i) shall have an additional option (which shall also be considered an “Eligible Member Option” hereunder), for a period of five days next succeeding the expiration of such 15-day period, to purchase all or any
part of the balance of such Remaining Units on the terms and conditions set forth in 

  

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the OPE Notice (or in Section 7.5(e), as applicable), which option shall be exercised by the delivery of written notice to the Secretary of the
LLC. In the event there are two or more such Eligible Members that choose to exercise the last-mentioned option for a total number of Remaining Units in excess of the number available, the Remaining Units available for each such Eligible
Member’s option shall be allocated to such Eligible Member pro rata based on the number of Units owned (to the extent applicable, on an as-converted basis) by the Eligible Members so electing. 
 (iii) If the options to purchase the Remaining Units are exercised in full by the Eligible Members, the LLC shall immediately notify all of the
exercising Eligible Members and the Selling Member of that fact. The closing of the purchase of the Remaining Units shall take place at the offices of the LLC no later than five days after the date of such notice to the Eligible Members and the
Selling Member. Neither the LLC nor any of the Eligible Members shall have any right to purchase any of the Offered Units hereunder unless the LLC and/or the Eligible Members exercise their option or options to purchase all of the Offered Units.

 (d) Failure to Fully Exercise Options; Co-Sale. 
 (i) If the LLC and the Eligible Members do not exercise their options to purchase all of the Offered Units within the periods described in this
Section 7.5 (the “Option Period”), then all options of the LLC and the Eligible Members to purchase the Offered Units, whether exercised or not, shall terminate, but each Eligible Member which has, pursuant to
Section 7.5(c)(i), expressed a desire to Transfer Units in the transaction (a “Participating Eligible Member”), shall be entitled to do so pursuant to this Section 7.5(d). The LLC shall promptly, on expiration of
the Option Period, notify the Selling Member of the aggregate number of Units the Participating Eligible Members wish to Transfer. The Selling Member shall use its best efforts to interest the Offeror in purchasing, in addition to the Offered Units,
the Units the Participating Eligible Members wish to Transfer. If the Offeror does not wish to purchase all of the Units made available by the Selling Member and the Participating Eligible Members, then each Participating Eligible Member and the
Selling Member shall be entitled to Transfer, at the price and on the terms and conditions set forth in the OPE Notice (or in Section 7.5(e), as applicable), a portion of the Units being sold to the Offeror, in the same proportion as
such Selling Member’s or Participating Eligible Member’s ownership of Units bears to the aggregate number of Units owned by the Selling Member and the Participating Eligible Members; provided that the price set forth in the OPE Notice with
respect to any Units convertible into a different class of Units, or any Units possessing a liquidation preference over one or more other classes of Units (including by reason of another class of Units constituting profits interests) shall be
appropriately adjusted, if necessary, based on the conversion ratio of any convertible Units to be sold and/or on the amounts distributable in liquidation of the LLC with respect to any Units possessing a liquidation preference. The transaction
contemplated by the OPE Notice shall be consummated not later than 60 days after the expiration of the Option Period. 
 (ii) If the
Participating Eligible Members do not elect to Transfer the full number of Units which they are entitled to Transfer pursuant to Section 7.5(d)(i), the Selling Member shall be entitled to sell to the Offeror, according to the terms set
forth in the OPE Notice (or in Section 7.5(e), as applicable), that number of its own Units which equals the difference between the number of Units desired to be purchased by the Offeror and the number of Units the Participating Eligible
Members Transfer pursuant to Section 7.5(d)(i). If the Selling Member wishes to Transfer (including an indirect Transfer pursuant to an Optional Purchase Event described in clause (ii) of Section 7.5(e)) any such Units
at a price per Unit which differs from that set forth in the OPE Notice, upon terms different from those previously offered to the LLC and the Eligible Members, or more than 90 days after the expiration of the Option Period, then, as a condition
precedent to such transaction, such Units must first be offered to the LLC and the Eligible Members on the same terms and conditions as given the Offeror, and in accordance with the procedures and time periods set forth above. 
 (iii) The proceeds of any Transfer made by the Selling Member without compliance with the provisions of this Section 7.5 shall be deemed to
be held in constructive trust in such amount as would have been due the Participating Eligible Members if the Selling Member had complied with this Agreement. Any Transfer of Units to the Offeror shall comply with the other provisions of this
Agreement, and the Offeror shall be a mere assignee and shall not become a Member unless admitted to the LLC as such pursuant to the terms of this Agreement. 
  

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 (e) Optional Purchase Events. For purposes of this Agreement, the term
“Optional Purchase Event” shall mean the proposed Transfer of any Units, or any interest therein, by the holder thereof unless such Transfer is to a Permitted Transferee of the transferor or a Transfer described in
Section 7.6. 
 (f) Proposed Transfer for Consideration. If the Optional Purchase Event is a proposed Transfer of
Units (or any interest therein) for cash, indebtedness, property or other consideration, then the LLC Option and the Eligible Member Option shall be to purchase such Units (or interest therein) for cash plus the fair market value of the other
consideration (if any) proposed to be received in exchange for the Transfer of the same. If the consideration includes any indebtedness, property or other noncash consideration, fair market value of such consideration shall be determined pursuant to
the Appraisal Exhibit (and if such determination is necessary, then all time periods set forth in this Section 7.5 shall, to the extent they are affected thereby, be tolled for the period of, and until completion of, such determination).

 (g) Other Optional Purchase Events. If the Optional Purchase Event is described in clause (ii) of
Section 7.5(e), then the LLC Option and the Eligible Member Option shall be for a purchase price equal to, unless otherwise agreed to by the transferring Person and the purchaser(s), (i) the fair market value of the transferring
Person’s Units as of the last day of the calendar month immediately prior to the occurrence of the Optional Purchase Event (the “Valuation Date”) determined pursuant to the Appraisal Exhibit, plus (ii) simple
interest at the Prime Rate on the amount determined under clause (i) from the Valuation Date to the closing date, reduced by (iii) any distributions with respect to such Units from the Valuation Date through the closing date (and if such
determination is necessary, then all time periods set forth in this Section 7.5 shall, to the extent they are affected thereby, be tolled for the period of, and until completion of, such determination). 
 (h) The rights of the LLC and the Eligible Members under this Section 7.5 shall not apply to any pledge or hypothecation of Units which
creates a mere security interest, provided the pledgee provides the LLC and the Eligible Members with a written agreement to be bound by this Agreement (including compliance with the provisions of this Article VII prior to taking or
transferring title to any pledged Units) to the same extent as the pledging holder of Units, in form and substance satisfactory to the LLC and each of the Eligible Members. XLTG shall not be required to obtain any written agreement from Laurus
Master Fund which already holds a pledge and security interest in XLTG’s membership interest in the LLC. 
 SECTION 7.6. Permitted
Transfers; Effect of Transfer by AzTE. Notwithstanding anything contained herein to the contrary, AzTE shall be permitted to Transfer all or part of its Units to Arizona State University, the Arizona Board of Regents, the Arizona State
University Foundation, or any entity controlled by, and substantially all of the beneficial interests which are owned by, AzTE or any of the foregoing, so long as the requirements of subsection (b) of Section 7.2 are met. Any Person
to whom Units are transferred by AzTE in compliance with Agreement shall have, and be entitled to exercise, the rights of AzTE hereunder to the extent such rights are transferred to such Person by AzTE (except any Person to whom all of the
AzTE’s Units are transferred in compliance with this Agreement shall have, and shall be entitled to exercise, all rights of AzTE hereunder). 
 SECTION 7.7. Corporate Conversion. 
 (a) In General. It is the express intention and
understanding of the Members at the time of their execution of this Agreement that the LLC may be converted into a corporation in the manner set forth herein by the action of the Board and without the necessity of any action or any investment
decision on the part of any Member. 
 (b) Procedures. Upon the determination at any time by the Board that it is in the best
interests of the LLC that it be converted into a corporation, the Board shall (i) cause the LLC to be converted into a corporation pursuant to any appropriate procedure permitted under the Act, and (ii) cause to be executed, delivered and
filed the certificate of incorporation of the resulting corporation (including any certificates of designation) and such other instruments and documents as it shall determine to be necessary or appropriate in order to effectuate such conversion
(such transaction referred to as a “Corporate Conversion”). In connection with the Corporate Conversion, (i) each holder of outstanding Class A Units shall receive one share of voting common stock in the resulting
corporation for each Class A Unit of such holder on the date of the Corporate Conversion and (ii) each holder of outstanding Class B Units shall receive one share of non-voting common stock in the resulting corporation for each Class B
Unit of 

  

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such holder on the date of the Corporate Conversion. Notwithstanding the foregoing, in connection with the Corporation Conversion, AzTE shall receive that
number of shares of voting stock equal to (x) the total number of shares of voting stock outstanding immediately following the Corporation Conversion times (y) AzTE’s Sharing Percentage. 
 (c) Board of Directors. In connection with the consummation of a Corporate Conversion, the board of directors of the surviving corporation
shall be the same size and shall have the same composition and shall be subject to the same voting and other rules as the Board. 
 (d)
Other Rights of Members. In connection with a Corporate Conversion, the Board shall cause the resulting corporation to enter into such agreements as are necessary to provide the Members with rights with respect to such corporation
which are not less favorable to such Members than their rights pursuant to this Agreement (other than any such rights that arise solely by reason of, or in connection with, the LLC’s pass-through tax status). 
 (e) Other Permitted Ancillary Transactions. In connection with the consummation of a Corporate Conversion, the Board shall have the
authority to merge, consolidate or reorganize one or more subsidiaries with one or more other subsidiaries or other entities wholly-owned directly or indirectly by the LLC or the surviving or resulting corporation in the Corporate Conversion.

 (f) Further Assurances. The Board is specifically authorized to take any and all further action, and to execute, deliver and
file any and all additional agreements, documents or instruments, as it may determine to be necessary or appropriate in order to effectuate the provisions of this Section 7.7, and each Member hereby agrees to execute, deliver and file
any such agreements, documents or instruments or to take such action as may be reasonably requested by the Board for the purpose of effectuating the provisions of this Section 7.7. Each Member shall execute and be bound by the terms of
any lockup agreement deemed necessary by the surviving or resulting corporation’s investment bankers in connection with the marketing of a Qualified IPO; provided that AzTE shall not be required to execute or become bound by any such agreement
if (i) such agreement provides for a lockup period exceeding 180 days, or (ii) any officer, director or other holder of at least one percent (1%) of any class of the Company’s outstanding securities fails or refuses to become
similarly bound. 
 (g) Survival of Rights. The rights of the Members under this Section 7.7 shall survive
termination of this Agreement in connection with a Corporate Conversion. 
 SECTION 7.8. Limited Power of Attorney. Each Member that
holds only Class B Units hereby makes, constitutes and appoints the Chief Executive Officer of the LLC, with full power of substitution and resubstitution, its true and lawful attorney-in-fact for it and in its name, place, and stead for its use and
benefit, to sign, execute, certify, acknowledge, swear to, file, and record any and all agreements, certificates, instruments, and other documents which such Person may deem reasonably necessary, desirable, or appropriate to allow the Chief
Executive Officer to carry out the express provisions of this Agreement including the provisions of Section 7.9. Each such Member authorizes each such attorney-in-fact to take any action necessary or advisable in connection with the
foregoing, hereby giving each attorney-in-fact full power and authority to do and perform each and every act or thing whatsoever requisite or advisable to be done in connection with the foregoing as fully as such Member might or could do so
personally, and hereby ratifies and confirms all that such attorney-in-fact shall lawfully do or cause to be done by virtue thereof or hereof. This power of attorney is a special power of attorney coupled with an interest and is irrevocable, and
(i) may be exercised by any such attorney-in-fact by listing the Member executing any agreement, certificate, instrument, or other document with the single signature of any such attorney-in-fact acting as attorney-in-fact for such Member,
(ii) shall survive the death, disability, legal incapacity, bankruptcy, insolvency, dissolution, or cessation of existence of such Member and (iii) shall survive the assignment by such a Member all of or any portion of his Units, except
for assignments of all of such Member’s Units permitted under this Agreement. 
 SECTION 7.9. Drag Along Rights. If
holders of at least a majority of the outstanding Class A Units (on an as-converted basis) approve a transaction that would result in the acquisition of the LLC by another Person which is not an Affiliate of any such holders approving such
transaction, by means of any transaction or series of related transactions (including, without limitation, any merger, consolidation, sale, assignment, transfer, distribution or 

  

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issuance of stock with respect to the LLC) and pursuant to such transaction the Members of the LLC immediately prior to such transaction will not hold,
directly or indirectly, at least a majority of the voting power of the surviving or continuing entity (a “Drag-Along Transaction”), then, upon thirty (30) days written notice to the other Members of the LLC (the
“Drag-Along Notice”), which notice shall include substantially all of the details of the proposed transaction, including the proposed time and place of closing and the consideration to be received by the Members in such
transaction, each Member shall raise no objection to such Drag-Along Transaction and be obligated to, and shall sell, transfer and deliver, or cause to be sold, transferred and delivered, to such third party, all of its Units in the same transaction
at the closing thereof (and will deliver such Units free and clear of all liens, claims, or encumbrances); provided, however, that the aforementioned obligation to sell, transfer and deliver, or cause to be sold, transferred and delivered,
all of its Units to the respective third party shall not apply except in the event of a Qualified Drag Along Transaction. The proceeds from such Drag-Along Transaction shall be distributed to the Members in proportion to their relative entitlements
to distributions pursuant to Section 9.3; provided that, the net proceeds from the Qualified Drag-Along Transaction shall be deemed a constructive sale of the assets of the LLC solely for the purpose of adjusting the Members
respective capital accounts in the manner that such capital accounts would have been adjusted under the terms of this Agreement if the Qualified Drag-Along Transaction had been an asset sale and such constructively adjusted capital accounts shall be
used for purposes of determining the distributions that would have been made under Section 9.3 for purposes of this Section 7.9. For the avoidance of doubt, AzTE shall not be required to make any representations or
warranties, or to provide indemnification, in connection with any Drag-Along Transaction, other than as to AzTE’s unencumbered title to its Units and good standing. 
 SECTION 7.10. Mergers. Notwithstanding anything herein to the contrary, in any merger, consolidation, reorganization, recapitalization or similar transaction involving the LLC prior to a Qualified IPO in which
consideration, including without limitation equity interests in the LLC or another entity, is received by the Members, AzTE shall receive consideration equal to (i) the total value of all such consideration times (ii) AzTE’s Sharing
Percentage. 
 SECTION 7.11. No Appraisal Rights. The Members shall have no appraisal rights in connection with any LLC transaction.

 ARTICLE VIII 
 CESSATION OF MEMBERSHIP 
 SECTION 8.1. When Membership Ceases. A Person who is a Member shall cease to be a Member
only upon the Transfer (other than a pledge or hypothecation) as permitted under this Agreement of all of the Units held by such Member. A Member is not otherwise entitled to withdraw voluntarily from the LLC. 
 SECTION 8.2. Deceased, Incompetent or Dissolved Members. The personal representative, executor, administrator, guardian, conservator or other
legal representative of a deceased individual Member or of an individual Member who has been adjudicated incompetent may exercise the rights of the Member for the purpose of administration of such deceased Member’s estate or such incompetent
Member’s property. The beneficiaries of a deceased Member’s estate may become Members only upon compliance with the conditions of this Agreement. If a Member who is a Person other than an individual is dissolved, the legal representative
or successor of such Person may exercise the rights of the Member pending liquidation. The distributees of such Person may become Members only upon compliance with the conditions of this Agreement. 
 SECTION 8.3. Consequences of Cessation of Membership. In the event a Person ceases to be a Member as provided in Section 8.1 above,
such Person (and the Person’s successor in interest) shall continue to be liable for all obligations of the former Member to the LLC, including any obligation to make Capital Contributions, and, with respect to any Units owned by such successor
in interest, shall be an assignee unless admitted as a Member pursuant to Section 7.3. Subject to Section 7.6, an assignee of any Units is entitled only to receive distributions and allocations with respect to such Units as
set forth in this Agreement, and shall have no other rights, benefits or authority of a Member under this Agreement or the Act, including without limitation no right to receive notices to which Members are entitled under this Agreement, no right to
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records of the LLC, no right to bring derivative actions on behalf of the LLC, no right to designate members of the Board, no right to purchase additional
Units, and no other rights of a Member under the Act or this Agreement; provided, however, that the Units of an assignee shall be subject to all of the restrictions, obligations (including any obligation to make Capital Contributions) and
limitations under this Agreement and the Act, including without limitation the restrictions on transfer of Units contained in this Agreement. 
 ARTICLE IX 
 DISSOLUTION, WINDING UP; CHANGE OF CONTROL TRANSACTION 
 AND LIQUIDATING DISTRIBUTIONS 
 SECTION 9.1. Dissolution Triggers. The LLC shall dissolve upon the first occurrence of the following events: 
 (a) The determination by the holders of a majority of the outstanding Units entitled to vote that the LLC should be dissolved; 
 (b) The entry of a decree of judicial dissolution; or 
 (c) A sale, in accordance with this Agreement, of all or substantially all
of the assets of the LLC. 
 SECTION 9.2. Winding Up. Upon a dissolution of the LLC, the Board, or, if there is no Board, a court
appointed liquidating trustee, shall take full account of the LLC’s assets and liabilities and wind up the affairs of the LLC. The Persons charged with winding up the LLC shall settle and close the LLC’s business, and dispose of and convey
the LLC’s noncash assets as promptly as reasonably possible following dissolution as is consistent with obtaining the fair market value for the LLC’s assets. 
 SECTION 9.3. Liquidating Distributions. Following dissolution, the LLC’s cash, the proceeds, if any, from the disposition of the LLC’s noncash assets and those noncash assets to be distributed to the
Members, shall be distributed in the following order: 
 (a) To the LLC’s creditors, other than Members who are creditors, in
satisfaction of liabilities of the LLC; 
 (b) To the Members who are creditors in satisfaction of liabilities of the LLC; and 
 (c) To the Members in accordance with their positive Capital Account balances. 
 In the event of liquidating distributions of property other than cash, the amount of the distribution shall be the fair market value of the property
distributed as of the date of distribution. 
 Distributions pursuant to subsection (c) above may be made to a trust established by the
Members or the LLC for the benefit of the Members for the purposes of liquidating LLC assets, collecting amounts owed to the LLC, and paying liabilities or obligations of the LLC. The assets of any such trust shall be distributed to the Members from
time to time, in the reasonable discretion of the trustee of the liquidating trust, in the same proportions as the amount distributed to such trust by the LLC would otherwise have been distributed to the Members pursuant to this Agreement.

 If any assets of the LLC are distributed in kind, they shall be treated as if sold by the LLC immediately before such distribution for a
purchase price equal to their then fair market values and the resulting deemed Profits or Losses shall be allocated to the Members in accordance with the provisions of Article IV for purposes of determining the Capital Account balances of the
Members pursuant to subsection (c) above. 
  

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 ARTICLE X 
 BOOKS AND RECORDS 
 SECTION 10.1. Books and Records. The LLC shall keep adequate books and
records at its principal place of business, which shall set forth an accurate account of all transactions of the LLC as well as the other information required by the Act. For so long as it is a Member of the LLC, AzTE shall have the right to have a
private audit of the LLC’s books and records conducted at reasonable times and after reasonable advance notice to the LLC for any purpose reasonably related to AzTE’s interest in the LLC, provided that any such private audit shall be at
the expense of AzTE and shall not be paid for out of the LLC’s funds. The LLC and, to the extent applicable, XLTG shall fully cooperate with any such audit, and XLTG shall cause each of its applicable other Affiliates to do the same.

 SECTION 10.2. Taxable Year; Accounting Methods. The LLC shall use the Fiscal Year as its taxable year. The LLC shall report its
income for income tax purposes using the accrual method of accounting or such method selected by the Board and otherwise permitted by law. 
 SECTION 10.3. Right of Inspection. For so long as it is a Member of the LLC, AzTE and any accountants, attorneys, financial advisers and other representatives of AzTE and its Affiliates, may, from time to time at AzTE’s sole
expense, for any purpose reasonably related to AzTE’s status as a Member, visit and inspect the properties of the LLC, examine (and make copies and extracts of) the LLC’s books, records and documents of every kind, and discuss the
LLC’s affairs with its officers, employees and independent accountants, all at such reasonable times as AzTE may request on reasonable notice.  
 SECTION 10.4. Tax Information; Reports. 
 (a) Tax Information. Tax information necessary
to enable each Member to prepare its state, federal, local and foreign income tax returns shall be delivered to each Member within seventy-five (75) days of the end of each Fiscal Year. 
 (b) In addition to the foregoing, the LLC shall deliver to AzTE such information and reports as AzTE may reasonably request to enable compliance with
AzTE’s internal and Arizona State University reporting requirements. 
 ARTICLE XI 
 AzTE REGISTRATION RIGHTS 
 In the
event that the IPO is an IPO under the Securities Act, AzTE shall have, with respect to all Units held by it, the rights and obligations set forth in this Article XI. For the avoidance of doubt, the provisions of this Article XI do not apply
to any registration of the sale of Company Securities under the laws of any jurisdiction outside the United States of America, and AzTE shall have no rights hereunder with respect to any such registration. 
 SECTION 11.1. Required Registrations. 
 (a) At any time after the closing of the IPO and the Company becomes eligible to file a Registration Statement on Form S-3 (or any successor form relating to secondary offerings), AzTE may request, in writing, that the Company effect the
registration on Form S-3 (or such successor form), of Registrable Units having an aggregate value of at least $1,000,000 (based on the public market price on the date of such request). 
 (b) Upon receipt of any request for registration pursuant to this Article XI, the Company shall, as expeditiously as possible, use its best
efforts to effect the registration on an appropriate registration form of all Registrable Units which the Company has been requested to so register; provided, however, the Company will only be obligated to effect such registration on Form S-3 (or
any successor form). 
  

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 (c) If AzTE intends to distribute the Registrable Units covered by its request by means of an
underwriting, AzTE shall so advise the Company as a part of its request made pursuant to Section 11.1(a). In such event, AzTE shall enter into an underwriting agreement upon customary terms with the underwriter or underwriters managing
the offering, provided that such underwriting agreement shall not provide for indemnification or contribution obligations on the part of AzTE materially greater than the obligations of AzTE pursuant to Section 11.5. AzTE shall have the
right to select the managing underwriter(s) for any underwritten offering requested pursuant to Section 11.1(a), subject to the approval of the Company, which approval shall not be unreasonably withheld, conditioned or delayed. If the
managing underwriter advises the Company and AzTE in writing that marketing factors require a limitation on the number of Units to be underwritten, the number of Registrable Units to be included in the Registration Statement and underwriting shall,
if in excess of such limitation, be correspondingly reduced. 
 (d) The Company shall not be required to effect more than two registrations
pursuant to Section 11.1(a) in any twelve-month period. In addition, the Company shall not be required to effect any registration within six months after the effective date of the Registration Statement relating to the IPO. For purposes
of this Section 11.1(d), a Registration Statement shall not be counted until such time as such Registration Statement has been declared effective by the Commission (unless AzTE withdraws its request for such registration (other than as a
result of information concerning the business or financial condition of the Company which is made known to AzTE after the date on which such registration was requested) and elects not to pay the Registration Expenses therefor pursuant to
Section 11.4). For purposes of this Section 11.1(d), a Registration Statement shall not be counted if, as a result of an exercise of the underwriter’s cut-back provisions, less than 50% of the total number of Registrable
Units that AzTE has requested to be included in such Registration Statement are so included. 
 (f) If at the time of any request to register
Registrable Units by AzTE pursuant to this Section 11.1, the Company is engaged or has plans to engage in a registered public offering or is engaged in any other activity which, in the good faith determination of the Board, would be
adversely affected by the requested registration, then the Company may at its option direct that such request be delayed for a period not in excess of 90 days from the date of such request, such right to delay a request to be exercised by the
Company not more than once in any 12-month period. 
 SECTION 11.2. Incidental Registration. 
 (a) Whenever the Company proposes to file a Registration Statement (other than a Registration Statement filed pursuant to Section 11.1 but
including any Registration Statement filed in connection with an IPO) at any time and from time to time, it shall, prior to such filing, give written notice to AzTE of its intention to do so. Upon the written request of AzTE given within 20 days
after the Company provides such notice (which request shall state the intended method of disposition of such Registrable Units), the Company shall use its best efforts to cause all Registrable Units which the Company has been requested by AzTE to
register to be registered under the Securities Act to the extent necessary to permit their sale or other disposition in accordance with the intended methods of distribution specified in AzTE’s request; provided that the Company shall have the
right to postpone or withdraw any registration effected pursuant to this Section 11.2 without obligation to AzTE. 
 (b) If the
registration for which the Company gives notice pursuant to Section 11.2(a) is a registered public offering involving an underwriting, the Company shall so advise AzTE as a part of the written notice given pursuant to
Section 11.2(a). In such event, (i) the right of AzTE to include its Registrable Units in such registration pursuant to this Section 11.2 shall be conditioned upon AzTE’s participation in such underwriting on the
terms set forth herein and (ii) if AzTE requests to include its Registrable Units in such registration, it shall enter into an underwriting agreement upon customary terms with the underwriter or underwriters selected for the underwriting by the
Company; provided that such underwriting agreement shall not provide for indemnification or contribution obligations on the part of Purchasers materially greater than the obligations of the Purchasers pursuant to Section 11.5. If AzTE
disapproves of the terms of the underwriting, AzTE may elect, by written notice to the Company, to withdraw its Units from such Registration Statement and underwriting. If the managing underwriter advises the Company in writing that marketing
factors require a limitation on the number of Units to be underwritten, then the number of Units to be included in such Registration Statement and underwriting shall be reduced to a number deemed advisable to the managing underwriter; provided that
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determined in the following sequence: (x) first, Units held by any Persons not having any contractual registration rights to include such Units on the
Registration Statement, (y) second, Units held by any other Persons having contractual registration rights junior to those held by AzTE, and (z) third, Units held by AzTE and XLTG on a pro rata basis in accordance with their respective
Units held. 
 SECTION 11.3. Registration Procedures. 
 (a) If and whenever the Company is required by the provisions of this Agreement to use its best efforts to effect the registration of any Registrable Units under the Securities Act, the Company shall: 
 (i) file with the Commission a Registration Statement with respect to such Registrable Units and use its best efforts to cause that Registration Statement
to become effective as soon as reasonably possible; 
 (ii) use its best efforts to diligently and promptly prepare and file with the
Commission any amendments and supplements to the Registration Statement and the prospectus included in the Registration Statement as may be necessary to comply with the provisions of the Securities Act (including the anti-fraud provisions thereof)
and to keep the Registration Statement effective for 12 months from the effective date or such lesser period until all such Registrable Units are sold; 
 (iii) use its best efforts to diligently and promptly furnish to AzTE such reasonable numbers of copies of the Prospectus, including any preliminary Prospectus, in conformity with the requirements of the Securities
Act, and such other documents as AzTE may reasonably request in order to facilitate the public sale or other disposition of the Registrable Units owned by AzTE; 
 (iv) use its best efforts to diligently and promptly register or qualify the Registrable Units covered by the Registration Statement under the securities or Blue Sky laws of such states as AzTE shall reasonably
request, and do any and all other acts and things that may be necessary or desirable to enable AzTE to consummate the public sale or other disposition in such states of the Registrable Units owned by AzTE; provided, however, that the Company shall
not be required in connection with this paragraph (iv) to qualify as a foreign corporation or to execute a general consent to service of process in any jurisdiction or to amend its Certificate of Incorporation or By-laws in a manner that the
Board determines is inadvisable; 
 (v) use its best efforts to diligently and promptly cause all such Registrable Units to be listed on each
securities exchange or automated quotation system on which similar securities issued by the Company are then listed; 
 (vi) promptly provide
a transfer agent and registrar for all such Registrable Units not later than the effective date of such Registration Statement; 
 (vii)
promptly make available for inspection by AzTE, any managing underwriter participating in any disposition pursuant to such Registration Statement, and any attorney or accountant or other agent retained by any such underwriter or selected by AzTE,
all financial and other records, pertinent corporate documents and properties of the Company and cause the Company’s officers, directors, employees and independent accountants to supply all information reasonably requested by any such seller,
underwriter, attorney, accountant or agent in connection with such Registration Statement; 
 (viii) notify AzTE, promptly after it shall
receive notice thereof, of the time when such Registration Statement has become effective or a supplement to any Prospectus forming a part of such Registration Statement has been filed; and 
 (ix) use its best efforts to diligently and promptly, following the effectiveness of such Registration Statement, notify AzTE of any request by the
Commission for the amending or supplementing of such Registration Statement or Prospectus. 
  

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 (b) If the Company has delivered a Prospectus to AzTE and after having done so the Prospectus is
amended to comply with the requirements of the Securities Act, the Company shall promptly notify AzTE and, if requested, AzTE shall immediately cease making offers of Registrable Units and return all Prospectuses to the Company. The Company shall
promptly provide AzTE with revised Prospectuses and, following receipt of the revised Prospectuses, AzTE shall be free to resume making offers of the Registrable Units. 
 (c) In the event that, in the judgment of the Company, it is advisable to suspend use of a Prospectus included in a Registration Statement due to pending material developments or other events that have not yet been
publicly disclosed and as to which the Company believes public disclosure would be detrimental to the Company, the Company shall notify AzTE to such effect, and, upon receipt of such notice, AzTE shall immediately discontinue any sales of
Registrable Units pursuant to such Registration Statement until AzTE has received copies of a supplemented or amended Prospectus or until AzTE is advised in writing by the Company that the then current Prospectus may be used and has received copies
of any additional or supplemental filings that are incorporated or deemed incorporated by reference in such Prospectus. Notwithstanding anything to the contrary herein, the Company shall not exercise its rights under this Section 11.3(c)
to suspend sales of Registrable Units for a period in excess of 90 days consecutively or 120 days in any 365-day period. 
 SECTION 11.4.
Allocation of Expenses. The Company shall pay all Registration Expenses for all registrations under this Agreement; provided, however, that if a registration under Section 11.1 is withdrawn at the request of AzTE (other than as a
result of information concerning the business or financial condition of the Company which is made known to AzTE after the date on which such registration was requested) and if AzTE elects not to have such registration counted as a registration
requested under Section 11.1, AzTE shall pay the Registration Expenses of such registration. 
 SECTION 11.5. Indemnification
and Contribution. 
 (a) In the event of any registration of any of the Registrable Units under the Securities Act pursuant to this
Agreement, the Company shall indemnify and hold harmless AzTE, each underwriter of such Registrable Units, and each other person, if any, who controls AzTE or such underwriter within the meaning of the Securities Act or the Exchange Act against any
losses, claims, damages or liabilities, joint or several, to which AzTE, such underwriter or controlling person may become subject under the Securities Act, the Exchange Act, state securities or Blue Sky laws 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 of any material fact contained in any Registration Statement under which such Registrable Units
were registered under the Securities Act, any preliminary prospectus or final prospectus contained in the Registration Statement, or any amendment or supplement to such Registration Statement, (ii) the omission or alleged omission to state a
material fact required to be stated therein or necessary to make the statements therein not misleading, or (iii) any violation or alleged violation by the Company of the Securities Act, the Exchange Act, any state securities law or any rule or
regulation promulgated under the Securities Act, the Exchange Act or any state securities law in connection with the Registration Statement or the offering contemplated thereby; and the Company shall reimburse AzTE, each such underwriter and each
such controlling person for any legal or any other expenses reasonably incurred by AzTE or such underwriter or controlling person in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however,
that the Company shall not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon (x) any untrue statement or omission made in such Registration Statement, preliminary prospectus
or prospectus, or any such amendment or supplement, in reliance upon and in conformity with information furnished to the Company by or on behalf of AzTE or such underwriter or controlling person, or (y) AzTE’s or such underwriter’s or
controlling person’s failure to send or give a copy of the final prospectus to the persons asserting an untrue statement or alleged untrue statement or omission or alleged omission at or prior to the written confirmation of sale of Registrable
Units to such person if such statement or omission was corrected in the final prospectus. With respect to (A) such untrue statement or omission made in such Registration Statement, preliminary prospectus or prospectus, or any such amendment or
supplement, in reliance upon and in conformity with information furnished to the Company by or on behalf of AzTE or such underwriter or controlling person, or (y) AzTE’s or such underwriter’s or controlling person’s failure to
send or give a copy of the final prospectus to the persons asserting an untrue statement or alleged untrue statement or omission or alleged omission at or prior to the written confirmation of sale of Registrable Units to such person if such
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corrected in the final prospectus, AzTE, such underwriter or such controlling person shall indemnify and hold harmless the Company and each person who
controls the Company within the meaning of the Securities Act or the Exchange Act against any losses, claims, damages or liabilities, joint or several, to which the Company or such controlling person may become subject under the Securities Act, the
Exchange Act, state securities or Blue Sky laws or otherwise. 
 (b) Each Indemnified Party shall give notice to the Indemnifying Party
promptly after such Indemnified Party has actual knowledge of any claim as to which indemnity may be sought, and shall permit the Indemnifying Party to assume the defense of any such claim or any litigation resulting therefrom; provided that counsel
for the Indemnifying Party, who shall conduct the defense of such claim or litigation, shall be approved by the Indemnified Party (whose approval shall not be unreasonably withheld, conditioned or delayed); provided further that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the Indemnifying Party of its obligations under this Section 11.5 except to the extent that the Indemnifying Party is adversely affected by such failure. The
Indemnified Party may participate in such defense at such party’s expense; provided, however, that the Indemnifying Party shall pay such expense if the Indemnified Party reasonably concludes that representation of such Indemnified Party by the
counsel retained by the Indemnifying Party would be inappropriate due to actual or potential differing interests between the Indemnified Party and any other party represented by such counsel in such proceeding; provided further that in no event
shall the Indemnifying Party be required to pay the expenses of more than one law firm per jurisdiction as counsel for the Indemnified Party. The Indemnifying Party also shall be responsible for the expenses of such defense if the Indemnifying Party
does not elect to assume such defense. No Indemnifying Party, in the defense of any such claim or litigation shall, except with the consent of each Indemnified Party, consent to entry of any judgment or enter into any settlement which 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, and no Indemnified Party shall consent to entry of any judgment or
settle such claim or litigation without the prior written consent of the Indemnifying Party, which consent shall not be unreasonably withheld, conditioned or delayed. 
 (c) In order to provide for just and equitable contribution in circumstances in which the indemnification provided for in this Section 11.5 is due in accordance with its terms but for any reason is held to
be unavailable to an Indemnified Party in respect to any losses, claims, damages and liabilities referred to herein, then the Indemnifying Party shall, in lieu of indemnifying such Indemnified Party, contribute to the amount paid or payable by such
Indemnified Party as a result of such losses, claims, damages or liabilities to which such party may be subject in such proportion as is appropriate to reflect the relative fault of the Company on the one hand and AzTE on the other in connection
with the statements or omissions which resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative fault of the Company and AzTE shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of material fact related to information supplied by the Company or AzTE and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such
statement or omission. The Company and AzTE agree that it would not be just and equitable if contribution pursuant to this Section 11.5(c) were determined by pro rata allocation or by any other method of allocation which does not take
account of the equitable considerations referred to above. Notwithstanding the provisions of this Section 11.5(c), no person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. Any party entitled to contribution shall, promptly after receipt of notice of commencement of any action, suit or proceeding against such party in
respect of which a claim for contribution may be made against another party or parties under this Section 11.5(c), notify such party or parties from whom contribution may be sought, but the omission so to notify such party or parties
from whom contribution may be sought shall not relieve such party from any other obligation it or they may have thereunder or otherwise under this Section 11.5(c). No party shall be liable for contribution with respect to any action,
suit, proceeding or claim settled without its prior written consent, which consent shall not be unreasonably withheld, conditioned or delayed. 
 SECTION 11.6. Other Matters with Respect to Underwritten Offerings. In the event that Registrable Units are sold pursuant to a Registration Statement in an underwritten offering pursuant to Section 11.1, the Company
agrees to (a) enter into an underwriting agreement containing customary representations and warranties with respect to the business and operations of the Company and customary covenants and agreements to 

  

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be performed by the Company, including without limitation customary provisions with respect to indemnification by the Company of the underwriters of such
offering; (b) use its best efforts to cause its legal counsel to render customary opinions to the underwriters and AzTE with respect to the Registration Statement; and (c) use its best efforts to cause its independent public accounting
firm to issue customary “cold comfort letters” to the underwriters and AzTE with respect to the Registration Statement. 
 SECTION 11.7. Information by Holder. If any Registrable Units held by AzTE are to be included in any registration, AzTE shall furnish to the Company such information regarding itself and the distribution proposed by it as the Company
may reasonably request in writing and as shall be required in connection with any registration, qualification or compliance referred to in this Agreement. 
 SECTION 11.8. “Lock-Up” Agreement; Confidentiality of Notices. If requested by the Company and the managing underwriter of the IPO, AzTE shall not sell or otherwise transfer or dispose of any
Registrable Units or other securities of the Company held by AzTE (excluding securities acquired in the IPO or in the public market after such offering) for a period of 180 days following the effective date of the Registration Statement for the IPO;
provided that all holders of Units then holding at least 1% of the outstanding Class A Units (on an as-converted basis) and all officers and directors of the Company enter into similar agreements. 
 The Company may impose stop-transfer instructions with respect to the Registrable Units or other securities subject to the foregoing restriction until
the end of such 180-day period. 
 As a condition to the obligations of AzTE under this Section 11.8, the Company agrees to use
its reasonable best efforts to ensure that the “lock-up” obligation of AzTE under this Section 11.8, and any agreement entered into by AzTE as a result of its obligations under this Section 11.8, shall
(i) allow for periodic early releases of portions of the securities subject to such “lock-up” obligations, which may be conditioned upon the trading price of the Class A Units and (ii) provide that AzTE will participate on a
pro-rata basis in any early release of any holder of Class A Units. 
 SECTION 11.9. Rule 144 Requirements. After the earliest of
(i) the closing of the sale of securities of the Company pursuant to a Registration Statement, (ii) the registration by the Company of a class of securities under Section 12 of the Exchange Act, or (iii) the issuance by the
Company of an offering circular pursuant to Regulation A under the Securities Act, the Company agrees to: 
 (a) make and keep current public
information about the Company available, as those terms are understood and defined in Rule 144; 
 (b) use its best efforts to file with the
Commission in a timely manner all reports and other documents required of the Company under the Securities Act and the Exchange Act (at any time after it has become subject to such reporting requirements); and 
 (c) furnish to AzTE upon request (i) a written statement by the Company as to its compliance with the reporting requirements of Rule 144 and of the
Securities Act and the Exchange Act (at any time after it has become subject to such reporting requirements), (ii) a copy of the most recent annual or quarterly report of the Company, and (iii) such other reports and documents of the
Company as AzTE may reasonably request to avail itself of any similar rule or regulation of the Commission allowing it to sell any such securities without registration. 
 SECTION 11.10 Termination. All of the Company’s obligations to register Registrable Units under Sections 11.1 and 11.2 shall terminate upon the earlier of (a) five years after the
closing of the IPO, or (b) the date on which AzTE does not hold any Registrable Units. 
  

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 ARTICLE XII 
 MISCELLANEOUS 
 SECTION 12.1. Notices. Any notice, payment, demand, or communication required
or permitted to be given by any provision of this Agreement shall be in writing and shall be delivered personally to the Person or to an officer of the Person to whom the same is directed, or sent by registered or certified United States mail return
receipt requested, or by facsimile transmission or by courier service, addressed as follows: if to the LLC, to the LLC’s principal office address as set forth in the Certificate of Formation, or to such other address as may be specified from
time to time by notice to the Members; if to a Member, to the address set forth with respect to such Member on the Information Exhibit attached hereto (or, if no address is set forth thereon with respect to such Member, then to the LLC, which shall
promptly transmit such notice to such Member), or to such other address as the Member may specify from time to time by notice to the LLC (which shall promptly transmit such notice, to the extent applicable, to each Member whose address is set forth
on the Information Exhibit). Any such notice shall be deemed to be delivered, given, and received for all purposes as of the date of actual receipt. 
 SECTION 12.2. Binding Effect. Except as otherwise provided in this Agreement, every covenant, term, and provision of this Agreement shall be binding upon and inure to the benefit of the Members, and their
respective heirs, legatees, legal representatives, successors, permitted transferees, and assigns. 
 SECTION 12.3. Construction.
Every covenant, term and provision of this Agreement shall be construed simply according to its fair meaning and not strictly for or against any Member. No provision of this Agreement is to be interpreted as a penalty upon, or a forfeiture by, any
party to this Agreement. The parties acknowledge that each party to this Agreement, together with such party’s legal counsel, has shared equally in the drafting and construction of this Agreement and, accordingly, no court construing this
Agreement shall construe it more strictly against one party hereto than the other. 
 SECTION 12.4. Entire Agreement; No Oral Agreements;
Amendments to the Agreement. This Agreement constitutes the entire agreement among the Members with respect to the affairs of the LLC and the conduct of its business, and supersedes all prior agreements and understandings, whether oral or
written. The LLC shall have no oral limited liability company agreements. Subject to Section 5.2, this Agreement may be amended only by a written amendment adopted by the Board and approved by the holders of at least a majority of the
outstanding Units entitled to vote (and, where applicable, as provided in Article V hereof). Notwithstanding the foregoing (but subject to Section 5.2), without the prior written consent of each Member thereby affected,
(a) no amendment shall (i) alter such Member’s rights, obligations or liabilities under Section 2.1 through Section 2.3 or (ii) materially and adversely affect such Member’s right to receive
distributions, whether interim or liquidating, with respect to a specific class of Units at different times or in different per Unit amounts than the other holders of the same class of Units as a result of holding such Units. 
 Any amendment adopted consistent with the provisions of this Section 12.4 shall be binding on the Members without the necessity of their
execution of the amendment or any other instrument. Although not required for the approval of any such amendment, the LLC shall provide a copy of any such amendment to any Member not providing written consent as soon as practicable after the
amendment has been adopted (and such amendment shall become binding on such Member upon receipt of such copy by such Member). 
 SECTION
12.5. Headings. Section and other headings contained in this Agreement are for reference purposes only and are not intended to describe, interpret, define, or limit the scope, extent, or intent of this Agreement or any provision hereof.

 SECTION 12.6. Severability. Every provision of this Agreement is intended to be severable. If any term or provision hereof is
illegal or invalid for any reason whatsoever, such illegality or invalidity shall not affect the validity or legality of the remainder of this Agreement. 
  

 24 

 EXECUTION COPY 
  

 SECTION 12.7. Additional Documents. Each Member agrees to perform all further acts and
execute, acknowledge, and deliver any documents that may be reasonably necessary, appropriate, or desirable to carry out the provisions of this Agreement. 
 SECTION 12.8. Variation of Pronouns. All pronouns and any variations thereof shall be deemed to refer to masculine, feminine, or neuter, singular or plural, as the identity of the Person or Persons may require.

 SECTION 12.9. Governing Law; Consent to Exclusive Jurisdiction. The laws of the State of Delaware shall govern the validity of this
Agreement, the construction and interpretation of its terms, and organization and internal affairs of the LLC and the limited liability of the Members. Each Member hereby irrevocably consents to the exclusive personal jurisdiction of the courts of
the State of Delaware (including the federal courts sitting in Wilmington, Delaware), with respect to matters and disputes between or among the Members arising out of or in any way connected with the business or internal affairs of the LLC or the
execution, interpretation and performance of this Agreement. 
 SECTION 12.10. Waiver of Action for Partition. Each of the Members
irrevocably waives any right that it may have to maintain any action for partition with respect to any of the assets of the LLC. 
 SECTION 12.11. Counterpart Execution; Facsimile Execution. This Agreement may be executed in any number of counterparts with the same effect as if all of the Members had signed the same document. Such executions may be transmitted to
the LLC and/or the other Members by facsimile and such facsimile execution shall have the full force and effect of an original signature. All fully executed counterparts, whether original executions or facsimile executions or a combination, shall be
construed together and shall constitute one and the same agreement. 
 SECTION 12.12. Tax Matters Member. XLTG shall be the tax
matters member, and such tax matters member shall have all power and authority with respect to the LLC and its Members as a “tax matters partner” would have respect to a partnership and its partners under the Code and in any similar
capacity under state or local law. 
 SECTION 12.13. Confidentiality. Each Member hereby expressly agrees and acknowledges that the
LLC is the sole and exclusive owner of the rights associated with any proprietary and confidential information developed by the LLC. During the term of this Agreement, and after its termination, each Member agrees to treat and shall cause (where
applicable) its Affiliates, members, partners, directors, officers, employees, contractors and third parties rendering services or receiving information pursuant hereto (each, together with each Member, referred to herein as a “Receiving
Party”) to also treat as strictly confidential any and all information received from the LLC which is related to the business of the LLC. Without prejudice to anything contained in this Section 12.13, (A) a Receiving Party may
disclose such information if and to the extent that said disclosure (i) is made in connection with performance of its duties hereunder, provided the Receiving Party making such disclosure reasonably considers that such disclosure will not be
detrimental to the LLC, (ii) is required by law, regulation, listing rules, through a court order, or at the official request of a governmental body or branch to which the Receiving Party is subject or (iii) is made to a professional
advisor or auditor who is advised of the confidentiality requirements set forth herein, or (B) disclosure of such information shall not violate anything contained in this Section 12.13 if such information (x) was in the public
domain at the time disclosed through no fault of the Receiving Party, (y) was known to the Receiving Party, without restriction, at the time disclosed or (z) becomes known to the Receiving Party, without restriction, from a source other
than the LLC, without breach of this Agreement. In any event, with respect to (A)(ii) above, the LLC shall be informed prior to any such disclosure. Notwithstanding anything to the contrary in this Agreement, (1) AzTE’s rights to
information within the scope of the License Agreement, or to information set forth in the License Agreement, shall be subject solely to the License Agreement and shall not be subject to this Section 12.13, and (2) a Receiving Party,
may disclose information otherwise subject to this Section 12.13 in connection with any suit, action or proceeding relating to the interpretation or enforcement of this Agreement or to the extent such disclosure is mandated by the
Freedom of Information Act or any similar federal or state statute applicable to such Receiving Party provided that the Receiving Party shall give the disclosing party written notice of its determination that disclosure is required by law prior to
disclosure such that the disclosing party shall have a reasonable opportunity to contest the disclosure or seek a protective order. 
  

 25 

 EXECUTION COPY 
  

 SECTION 12.14. Time of the Essence. Time is of the essence with respect to each and every term
and provision of this Agreement. 
 SECTION 12.15. Exhibits. The Schedules and Exhibits to this Agreement, each of which is
incorporated by reference, are: 
  

			
	Exhibit A:	  	Information Exhibit
	Exhibit B:	  	Glossary of Terms
	Exhibit C:	  	Regulatory Allocations Exhibit
	Exhibit D:	  	Appraisal Exhibit

 SECTION 12.16. XLTG Covenant Regarding Technology. XLTG agrees that it will take any and
all actions reasonably available to XLTG to assign to the LLC its rights under that certain Sponsored Research Agreement entered into between XLTG and Arizona State University as of July 10, 2006 and will promptly assign to the LLC any and all
of its rights to Microorganism Growth and Harvesting System and Method (Application No. 60/782564, Filed 3/15/2006), Tubular Microbial Growth System (Application No. 60/825475, Filed 9/13/2006), Hybrid Pond Bioreactor (Application
No. 60/825464, Filed 9/13/2006), and Covered Trough (Application No. 60/825592, Filed 9/14/2006). XLTG represents that it knows of no reasons why such assignment cannot take place. All intellectual property (including, without limitation,
any invention, whether or not patentable, trade secret or other technology) conceived or developed by an employee, or other person or entity under the control of XLTG in performing services on behalf of the LLC which is related to the subject matter
of the patent applications being licensed to the LLC by AzTE, shall be either (a) directly assigned by such employee, person or entity to the LLC, or (b) assigned by such employee, person or entity to XLTG and from XLTG to the LLC. XLTG
represents and warrants that any such employee, person or entity shall be obligated to assign to XLTG, or as XLTG directs, any such intellectual property conceived or developed by such employee, person or entity for the LLC. Such obligation, as
outlined hereinabove, shall apply also to any other procedure or agreement by which an employee of XLTG or one of its Affiliates performs services for the LLC. 
 IN WITNESS WHEREOF, the Members have executed this Agreement on the following execution pages, to be effective as of the Effective Date. 
 [SIGNATURES APPEAR ON FOLLOWING PAGE] 
  

 26 

 EXECUTION COPY 
  

 EXECUTION PAGE 
 TO THE 
 AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 

A DELAWARE LIMITED LIABILITY COMPANY 
  

			
	XL TechGroup, Inc.
		
	By:	 	 /s/ David Szostak

	Print Name:	 	 David Szostak

	Title:	 	 CFO

	
	Arizona Science & Technology Enterprises, LLC
		
	By:	 	 /s/ Peter Slate

	Print Name:	 	Peter Slate
	Title:	 	Chief Executive Officer

 EXHIBIT A 
 TO THE 
 AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 

A DELAWARE LIMITED LIABILITY COMPANY 
 INFORMATION EXHIBIT 
  

													
	 	  	 	  	Capital Contribution	  	 	  	 
	 Member Name and Notice Address
	  	Taxpayer
ID No.	  	Cash	  	Property	  	Capital Account	  	Class and Units
	 XL TechGroup, Inc.
 1901 S. Harbor City Blvd., Suite 300

 Melbourne, FL 32901
	  		  	$	488,532	  		  	$	488,532	  	19,000,000
Class A Units
						
	 Arizona Technology Enterprises, LLC
 The Brickyard-699 S.
Mill Avenue, Suite 601
 Room 691AA
 Tempe, Arizona
85281
	  		  			  	License	  	$	            	  	1,000,000
Class A Units

  

 A-1 

 EXHIBIT B 
 TO THE 
 AMENDED
AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 
 A DELAWARE LIMITED LIABILITY COMPANY 
 GLOSSARY OF TERMS 
 Many of the capitalized words and phrases used in this Agreement are defined below. Some defined terms used in this Agreement are applicable to only a particular Section of this Agreement or an Exhibit and are not
listed below, but are defined in the Section or Exhibit in which they are used. 
 “Act” shall mean the Delaware
Limited Liability Company Act, as in effect in Delaware from time to time and set forth at 6 Delaware Code, Chapter 18, et seq. (or any corresponding provisions of succeeding law). 
 “Adjusted Taxable Operating Income” shall mean the LLC’s cumulative items of income or gain less cumulative items of loss or
deduction, under the Code, computed from the Effective Date through the date such Adjusted Taxable Operating Income is being computed; provided, however, (i) gain or loss from a Capital Transaction shall be excluded from such computation
and (ii) allocations under Treasury Regulation 1.704-3 with respect to Section 704(c) Property shall be disregarded in determining the Adjusted Taxable Operating Income allocable to the Members. 
 “Affiliate” shall mean, with respect to any Person, (i) any Person directly or indirectly controlling, controlled by or
under common control with such Person, (ii) any Person directly or indirectly owning or controlling more than 50 percent of any class of outstanding equity interests of such Person or of any Person which such Person directly or indirectly owns
or controls more than 50 percent of any class of equity interests, (iii) any officer, director, general partner or trustee of such Person, or any Person of which such Person is an officer, director, general partner or trustee, or (iv) any
Person who is an officer, director, general partner, trustee or holder of more than fifty percent (50%) of the equity interests of any Person described in clauses (i) through (iii) of this sentence. 
 “Agreed Value” shall mean with respect to any noncash asset of the LLC an amount determined and adjusted in accordance with the
following provisions: 
 (a) The initial Agreed Value of any noncash asset contributed to the capital of the LLC by any Member shall be its
gross fair market value, as reasonably agreed to by the contributing Member and the Board. 
 (b) The initial Agreed Value of any noncash
asset acquired by the LLC other than by contribution by a Member shall be its adjusted basis for federal income tax purposes. 
 (c) The
initial Agreed Values of all the LLC’s noncash assets, regardless of how those assets were acquired, shall be reduced by depreciation or amortization, as the case may be, determined in accordance with the rules set forth in Treasury Regulations
§ 1.704-1(b)(2)(iv)(f) and (g). 
 (d) The Agreed Values, as reduced by depreciation or amortization, of all noncash assets of the LLC,
regardless of how those assets were acquired, shall be adjusted from time to time to equal their gross fair market values, as reasonably determined by the Board, as of the following times: 
 (i) the acquisition of Units by any new or existing Member in exchange for more than a de minimis Capital Contribution; 
 (ii) the distribution by the LLC of more than a de minimis amount of money or other property as consideration for one or more Units;

  

 B-1 

 (iii) the grant of more than a de minimis interest in the LLC as consideration for the
provision of services to or for the benefit of the LLC by an existing Member or by a new Member or a Person in anticipation of becoming a Member; and 
 (iv) the termination of the LLC for federal income tax purposes pursuant to Code §708(b)(1)(B). 
 If,
upon the occurrence of one of the events described in (i), (ii), (iii) or (iv) above the Board (acting in compliance with Section 5.3(a)(ii)) does not set the gross fair market values of the LLC’s assets, it shall be deemed that
the fair market values of all the LLC’s assets equal their respective Agreed Values immediately prior to the occurrence of the event and thus no adjustment to those values shall be made as a result of such event. 
 “Agreement” shall mean this PetroAlgae, LLC Amended and Restated Limited Liability Company Agreement, as amended from time to
time. 
 “Appraisal Exhibit” shall mean the Exhibit attached hereto as Exhibit D. 
 “AzTE” shall mean Arizona Technology Enterprises, LLC. 
 “AzTE Observer” shall have the meaning set forth in Section 5.1(b). 
 “Board” shall mean the Board of Directors of the LLC described in Section 5.1. 
 “Capital Account” shall mean with respect to each Member or assignee an account maintained and adjusted in accordance with the
following provisions: 
 (a) Each Person’s Capital Account shall be increased by Person’s Capital Contributions, such Person’s
distributive share of Profits, any items in the nature of income or gain that are allocated pursuant to the Regulatory Allocations and the amount of any LLC liabilities that are assumed by such Person or that are secured by LLC property distributed
to such Person. 
 (b) Each Person’s Capital Account shall be decreased by the amount of cash and the Agreed Value of any LLC property
distributed to such Person pursuant to any provision of this Agreement, such Person’s distributive share of Losses, any items in the nature of loss or deduction that are allocated pursuant to the Regulatory Allocations, and the amount of any
liabilities of such Person that are assumed by the LLC or that are secured by any property contributed by such Person to the LLC. 
 In the
event any Units are transferred in accordance with the terms of this Agreement, the transferee shall succeed to the Capital Account of the transferor to the extent it relates to the transferred Units. 
 In the event the Agreed Values of the LLC assets are adjusted pursuant to the definition of Agreed Value contained in this Agreement, the Capital
Accounts of all Members shall be adjusted simultaneously to reflect the aggregate adjustments as if the LLC recognized gain or loss equal to the amount of such aggregate adjustment. 
 The foregoing provisions and the other provisions of this Agreement relating to the maintenance of Capital Accounts are intended to comply with Treasury
Regulations § 1.704-1(b), and shall be interpreted and applied in a manner consistent with such regulations. 
 “Capital
Contribution” shall mean with respect to any Member, the amount of money and the initial Agreed Value of any property contributed to the LLC with respect to the Units of such Member. 
 “Capital Transaction” shall mean the acquisition by any Person or Persons of all or substantially all (as reasonably determined
by the Board) of the assets of the LLC in one or a series of related transactions. 
  

 B-2 

 “Change of Control Transaction” shall be deemed to have been occasioned by, or to
have occurred upon, the acquisition of the LLC by another Person by means of any transaction or series of related transactions (including, without limitation, any merger, consolidation, sale, assignment, transfer, distribution or issuance of Units
or stock with respect to the LLC) that results in all of the Members, collectively, immediately prior to such transaction not holding, directly or indirectly, at least a majority of the voting power of the surviving or continuing entity. 

“Class A Units” shall mean the Units identified, in or in accordance with this Agreement, as Class A Units.

 “Class B Units” shall mean the Units identified, in or in accordance with this Agreement, as Class B Units.

 “Code” shall mean the Internal Revenue Code of 1986, as amended from time to time, or any successor federal
revenue law. 
 “Commission” means the Securities and Exchange Commission, or any other federal agency at the time
administering the Securities Act. 
 “Company” means, collectively and as applicable, the LLC and any corporation
into which the LLC may be converted (by merger, filing of a certificate of conversion, or otherwise, and pursuant to Section 7.7 of this Agreement or otherwise). 
 “Company Security” (or “Company Securities”) means, collectively and as applicable, any Unit; any warrant, option or other right entitling the holder thereof to purchase any Unit; and
any other security (debt or equity) issued by the Company which is convertible into or exchangeable for any Unit or any warrant, option or other right entitling the holder thereof to purchase any Unit. 
 “Convertible Security” (or “Convertible Securities”) means any New Security that is a Class A Unit;
any warrant, option or other right entitling the holder thereof to purchase a Class A Unit or Units; and any other security (debt or equity) issued by the Company which is convertible into or exchangeable for a Class A Unit or Units or any
warrant, option or other right entitling the holder thereof to purchase a Class A Unit or Units. 
 “Corporate
Conversion” shall have the meaning set forth in Section 7.7. 
 “Default Rate” shall mean a per
annum rate of interest equal to the Prime Rate plus 500 basis points. 
 “Depreciation” shall mean, for
each Fiscal Year or other period, an amount equal to the depreciation, amortization, or other cost recovery deduction allowed or allowable for federal income tax purposes with respect to an asset for such Fiscal Year or other period; provided,
however that, except as otherwise provided in Treasury Regulations Section 1.704-2, if the Agreed Value of an asset differs from its adjusted basis for federal income tax purposes at the beginning of such Fiscal Year or other period,
Depreciation shall be an amount which bears the same ratio to such beginning Agreed Value as the federal income tax depreciation, amortization, or other cost recovery deduction for such Fiscal Year or other period bears to such beginning adjusted
tax basis; provided, further, that if the adjusted basis for federal income tax purposes of an asset at the beginning of such Fiscal Year or other period is zero, Depreciation shall be determined with reference to such beginning Agreed Value using
any reasonable method selected by the Members. 
 “DGCL” shall mean the Delaware General Corporation Law, as in
effect in Delaware from time to time. 
 “Directors” shall mean those persons elected or designated to serve on the
Board. 
 “Drag-Along Transaction” shall have the meaning set forth in Section 7.9. 
 “Effective Date” shall have the meaning set forth on the first page of this Agreement. 
  

 B-3 

 “Equity Incentive Plan” shall mean a plan (and any successor plan), adopted by
the Board in accordance with this Agreement, that provides for the issuance of Class B Units (or options or other rights to acquire the same) to employees, Directors, or other Persons in exchange for or in recognition of services provided to the
LLC. 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended, or any successor federal
statute, and the rules and regulations of the Commission issued under such Act, as they each may, from time to time, be in effect. 
 “Fiscal Year” shall mean, with respect to the first year of the LLC, the period beginning upon the formation of the LLC and ending on the nearest December 31, and with respect to subsequent years of the LLC the
calendar year and, with respect to the last year of the LLC, the portion of the calendar year ending with the date of filing of the certificate of cancellation with respect to the LLC in accordance with the Act. 
 “Fully Diluted Capitalization” means the aggregate number of Class A Units outstanding as of the time of determination,
assuming (i) full conversion into or exchange for Class A Units of all Company Securities convertible into or exchangeable for Class A Units, and (ii) full exercise of all options, warrants and similar rights to acquire
Class A Units (or Company Securities convertible into or exchangeable for Class A Units), in each case as of immediately prior to the time of determination. 
 “Indemnified Party” means a party entitled to indemnification pursuant to Section 11.5. 
 “Indemnifying Party” means a party obligated to provide indemnification pursuant to Section 11.5. 
 “Information Exhibit” shall mean the Information Exhibit attached hereto as Exhibit A. 
 “IPO” shall mean an underwritten initial public offering of equity interests in the LLC or its successor entity under the Securities Act pursuant to an effective Registration Statement or made
in accordance with any foreign securities law similar to the Securities Act including, without limitation, any registration on the London Stock Exchange or the EuroNext. 
 “License Agreement” shall mean that certain Exclusive License Agreement between AzTE and the LLC dated as of the Effective Date. 
 “LLC” shall mean the limited liability company formed upon the filing of the Certificate of Formation. 
 “Members” shall refer collectively to the Persons initially listed on Exhibit A (until such Persons have ceased to be
Members under the terms of this Agreement) and to the Persons having been admitted as a Member and deemed qualified as having met all requirements as set forth in this Agreement. “Member” means any one of the Members.

 “New Securities” shall have the meaning set forth in Section 2.2. 
 “Officers” shall have the meaning set forth in Section 5.1(c). 
 “Optional Purchase Event” shall have the meaning set forth in Section 7.5(e). 
 “Permitted Transfer” has the meaning set forth in Section 7.6. 
 “Permitted Transferee” shall mean: 
 (A) with respect to a Member who is an individual, (i) such individual’s estate, personal representative, executor, any ancestor, spouse or lineal descendant of such individual and (ii) any trust for
the exclusive benefit of, or a limited partnership or limited liability company all of the equity interests of which are owned by, the Persons set forth in clause (A)(i) or such Member; 
  

 B-4 

 (B) with respect to a Member that is a partnership, limited liability company, corporation, trust or
decedent’s estate, any Affiliate of such Member described in clause (i) or (ii) of the definition of “Affiliate” herein. 
 “Person” shall mean any natural person, partnership, trust, estate, association, limited liability company, corporation, custodian, nominee, governmental instrumentality or agency, body politic or any other entity in
its own or any representative capacity. 
 “Prime Rate” as of a particular date shall mean the prime rate of interest
as published on that date in the Wall Street Journal, and generally defined therein as “the base rate on corporate loans posted by at least seventy-five percent (75%) of the nation’s thirty (30) largest banks.” If the
Wall Street Journal is not published on a date for which the Prime Rate must be determined, the Prime Rate shall be the prime rate published in the Wall Street Journal on the nearest-preceding date on which the Wall Street Journal was
published. 
 “Profits” and “Losses” shall mean, for each Fiscal Year or other period,
an amount equal to the LLC’s taxable income or loss for such year or period, determined in accordance with Code § 703(a) (for this purpose, all items of income, gain, loss, or deduction required to be stated separately pursuant to Code
§ 703(a(a)(l) shall be included in taxable income or loss), with the following adjustments: 
 (a) Any income of the LLC that is exempt
from federal income tax and not otherwise taken into account in computing Profits or Losses shall be added to such taxable income or loss; 
 (b) Any expenditures of the LLC described in Code § 705(a)(2)(B) or treated as Code § 705(a)(2)(B) expenditures pursuant to Treasury Regulations § 1.704-1(b)(2)(iv)(i) and not otherwise taken into account in computing
Profits or Losses, shall be subtracted from such taxable income or loss; 
 (c) Gain or loss resulting from dispositions of LLC assets shall
be computed by reference to the Agreed Value of the property disposed of, notwithstanding that the adjusted tax basis of such property differs from its Agreed Value; and 
 (d) in lieu of depreciation, amortization and other cost recovery deductions, there shall be taken into account Depreciation in computing such taxable income or loss. 
 “Prospectus” means the prospectus included in any Registration Statement, as amended or supplemented by an amendment or
prospectus supplement, including post-effective amendments, and all material incorporated by reference or deemed to be incorporated by reference in such Prospectus. 
 “Qualified Drag-Along Transaction” shall mean any Drag-Along Transaction where the LLC or all or substantially all of its assets, as the case may be, is valued in an amount not less than
$100,000,000. 
 “Qualified IPO” shall mean any IPO where the LLC or a successor entity is valued in an amount not
less than $100,000,000 and the net proceeds received by the LLC or a successor entity in such offering are at least $40,000,000; provided in each case that AzTE may, in its discretion, waive any such Qualified IPO requirements in writing.

 “Register,” “registered,” and “registration” refer to a registration of the sale or resale of
Company Securities effected by the Company’s preparing and filing with the SEC of a registration statement or similar document in compliance with the Securities Act, and the declaration or ordering of effectiveness of such registration
statement or document by the SEC. 
 “Registrable Units” means (a) the Class A Units held by AzTE,
(b) any other Class A Units, and any Class A Units issued or issuable upon the conversion or exercise of any other securities, acquired by AzTE and (c) any other Class A Units issued in respect of such Units (because of Unit
splits, Unit dividends or distributions, reclassifications, recapitalizations or similar events); provided, however, that Class A Units which are Registrable Units shall cease to be Registrable Units upon any sale pursuant to a Registration
Statement or Rule 144 under the Securities Act. 
  

 B-5 

 “Registration Expenses” means all expenses incurred by the Company in complying
with the provisions of Article XI, including, without limitation, all registration and filing fees, exchange listing fees, printing expenses, fees and expenses of counsel for the Company and the reasonable fees and expenses of one counsel selected
by AzTE to represent AzTE, state Blue Sky fees and expenses, and the expense of any special audits incident to or required by any such registration, but excluding underwriting discounts and selling commissions. 
 “Registration Statement” means a registration statement filed by the Company with the Commission under the Securities Act for a
public offering and sale of securities of the Company (other than a registration statement on Form S-8 or Form S-4, or their successors, or any other form for a similar limited purpose, or any registration statement covering only securities proposed
to be issued in exchange for securities or assets of another corporation). 
 “Regulatory Allocations” shall mean
those allocations of items of LLC income, gain, loss or deduction set forth on the Regulatory Allocations Exhibit and designed to enable the LLC to comply with the alternate test for economic effect prescribed in Treasury Regulations §
1.704-1(b)(2)(ii)(d), and the safe-harbor rules for allocations attributable to nonrecourse liabilities prescribed in Treasury Regulations § 1.704-2. 
 “Regulatory Allocations Exhibit” shall mean the Exhibit attached hereto as Exhibit C. 
 “Section 704(c) Property” shall have the meaning ascribed such term in Treasury Regulation § 1.704-3(a)(3) and shall include assets treated as Section 704(c) property by virtue of
Treasury Regulation § 704-1(b)(2)(iv)(f). 
 “Securities Act” shall mean the Securities Act of 1933, as amended.

 “Sharing Percentage” for a Member, prior to a Qualified IPO, shall equal: 
 (I) in the case of each Member other than AzTE, the product of (a) .95 multiplied by (b) the aggregate number of Class A Units (if
any) and Class B Units (if any) held by such Member divided by the aggregate number of Class A Units (exclusive of the Class A Units held by AzTE ) and Class B Units outstanding; and 
 (II) in the case of AzTE, the greater of (i) the aggregate number of Units held by AzTE divided by the aggregate number of Units outstanding or
(ii) .05. 
 Notwithstanding the foregoing, all new equity issued in a Qualified IPO and thereafter will be dilutive to all Units (or stock of a
successor entity into which the Units may have converted as a result of a Corporate Conversion) on a pari passu basis. 
 “Subsidiary(ies)” shall mean, with respect to the LLC, any corporation, limited partnership, limited liability company, association, joint venture or other business entity of which more than fifty percent
(50%) of the total voting power of shares of stock or other ownership interests entitled (without regard to the occurrence of any contingency) to vote in the election of the Person or Persons (whether directors, managers, trustees or other
Persons performing similar functions) having the power to direct or cause the direction of the management and policies thereof is at the time owned or controlled, directly or indirectly, by the LLC or one or more of the other Subsidiaries of the LLC
or a combination thereof 
 “Transfer” shall mean any sale, assignment, transfer, conveyance, pledge, hypothecation,
or other disposition, voluntarily or involuntarily, by operation of law, with or without consideration, or otherwise (including, without limitation, by way of intestacy, will, gift, bankruptcy, receivership, levy, execution, charging order or other
similar sale or seizure by legal process) of one or more Units by the holder thereof. 
 “Treasury Regulations” shall
mean the final and temporary Income Tax Regulations promulgated under the Code, as such regulations may be amended from time to time (including corresponding provisions of succeeding regulations). 
  

 B-6 

 “Unit” means a unit of limited liability company interest in the LLC, and
includes any one or more shares of capital stock or other securities of any corporation into which the LLC may be converted (by merger, filing of a certificate of conversion, or otherwise, and pursuant to Section 7.7 or otherwise), or any other
successor entity, that are issued in exchange for, or in respect of, a Unit, or into which any such shares of capital stock may be converted (directly or indirectly). 
 “Valuation Date” shall have the meaning set forth in Section 7.5(d). 
 “XLTG” shall mean XL TechGroup, Inc., a Delaware corporation. 
 “XLTG Unreturned Capital
Contribution” shall mean the aggregate Capital Contributions made by a XLTG reduced by the amount of any cash distributions made to such XLTG pursuant to Section 3.1(a). 
 [THE REMAINDER OF THIS PAGE HAS INTENTIONALLY
BEEN LEFT BLANK] 
  

 B-7 

 EXHIBIT C 
 TO THE 
 AMENDED
AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE LLC 
 A DELAWARE LIMITED LIABILITY COMPANY 
 REGULATORY ALLOCATIONS 
 This Exhibit contains special rules for the allocation of items of LLC income, gain, loss and deduction that override the basic allocations of Profits and Losses in Section 4.1 of the Agreement to the extent
necessary to cause the overall allocations of items of LLC income, gain, loss and deduction to have substantial economic effect pursuant to Treasury Regulations §1.704-1(b) and shall be interpreted in light of that purpose. Subsection
(a) below contains special technical definitions. Subsections (b) through (h) contain the Regulatory Allocations themselves. Subsections (i), (j) and (k) are special rules applicable in applying the Regulatory Allocations.

 (a) Definitions Applicable to Regulatory Allocations. For purposes of the Agreement, the following terms shall have the
meanings indicated: 
 (i) “Adjusted Capital Account” means, with respect to any Member or assignee, such Person’s
Capital Account (as defined below) as of the end of the relevant Fiscal Year increased by any amounts which such Person is obligated to restore, or is deemed to be obligated to restore pursuant to the next to last sentences of Treasury Regulations
§ 1.704-2(g)(1) (share of minimum gain) and 1.704-2(i)(5) (share of member nonrecourse debt minimum gain). 
 (ii) “LLC Minimum
Gain” has the meaning of “partnership minimum gain” set forth in Treasury Regulations § 1.704-2(d), and is generally the aggregate gain the LLC would realize if it disposed of its property subject to Nonrecourse Liabilities
in full satisfaction of each such liability, with such other modifications as provided in Treasury Regulations § 1.704-2(d). In the case of Nonrecourse Liabilities for which the creditor’s recourse is not limited to particular assets of
the LLC, until such time as there is regulatory guidance on the determination of minimum gain with respect to such liabilities, all such liabilities of the LLC shall be treated as a single liability and allocated to the LLC’s assets using any
reasonable basis selected by the Board. 
 (iii) “Member Nonrecourse Deductions” shall mean losses, deductions or Code
§ 705(a)(2)(B) expenditures attributable to Member Nonrecourse Debt under the general principles applicable to “partner nonrecourse deductions” set forth in Treasury Regulations § 1.704-2(i)(2). 
 (iv) “Member Nonrecourse Debt” means any LLC liability with respect to which one or more but not all of the Members or related Persons
to one or more but not all of the Members bears the economic risk of loss within the meaning of Treasury Regulations § 1.752-2 as a guarantor, lender or otherwise. 
 (v) “Member Nonrecourse Debt Minimum Gain” shall mean the minimum gain attributable to Member Nonrecourse Debt as determined pursuant to Treasury Regulations § 1.704-2(i)(3). In the case of
Member Nonrecourse Debt for which the creditor’s recourse against the LLC is not limited to particular assets of the LLC, until such time as there is regulatory guidance on the determination of minimum gain with respect to such liabilities, all
such liabilities of the LLC shall be treated as a single liability and allocated to the LLC’s assets using any reasonable basis selected by the Board. 
 (vi) “Nonrecourse Deductions” shall mean losses, deductions, or Code § 705(a)(2)(B) expenditures attributable to Nonrecourse Liabilities (see Treasury Regulations § 1.704-2(b)(1)). The
amount of Nonrecourse Deductions for a Fiscal Year shall be determined pursuant to Treasury Regulations § 1.704-2(c), and shall generally equal the net increase, if any, in the amount of LLC Minimum Gain for that taxable year, determined
generally according to the provisions of Treasury Regulations § 1.704-2(d), reduced (but not below zero) by the aggregate distributions during the year of proceeds of Nonrecourse Liabilities that are allocable to an increase in LLC Minimum
Gain, with such other modifications as provided in Treasury Regulations § 1.704-2(c). 
  

 C-1 

 (vii) “Nonrecourse Liability” means any LLC liability (or portion thereof) for which no
Member bears the economic risk of loss under Treasury Regulations § 1.752-2. 
 (viii) “Regulatory Allocations” shall
mean allocations of Nonrecourse Deductions provided in Paragraph (b) below, allocations of Member Nonrecourse Deductions provided in Paragraph (c) below, the minimum gain chargeback provided in Paragraph (d) below, the member
nonrecourse debt minimum gain chargeback provided in Paragraph (e) below, the qualified income offset provided in Paragraph (f) below, the gross income allocation provided in Paragraph (g) below, and the curative allocations provided
in Paragraph (h) below. 
 (b) Nonrecourse Deductions. All Nonrecourse Deductions for any Fiscal Year shall be allocated
to the Members in proportion to the number of Units held by such Members during such Fiscal Year. 
 (c) Member Nonrecourse
Deductions. All Member Nonrecourse Deductions for any Fiscal Year shall be allocated to the Member who bears the economic risk of loss under Treasury Regulations § 1.752-2 with respect to the Member Nonrecourse Debt to which such Member
Nonrecourse Deductions are attributable. 
 (d) Minimum Gain Chargeback. If there is a net decrease in LLC Minimum Gain for a
Fiscal Year, each Member shall be allocated items of LLC income and gain for such year (and, if necessary, subsequent years) in an amount equal to such Member’s share of such net decrease in LLC Minimum Gain, determined in accordance with
Treasury Regulations § 1.704-2(g)(2) and the definition of LLC Minimum Gain set forth above. This provision is intended to comply with the minimum gain chargeback requirement in Treasury Regulations § 1.704-2(f) and shall be interpreted
consistently therewith. 
 (e) Member Nonrecourse Debt Minimum Gain Chargeback. If there is a net decrease in Member
Nonrecourse Debt Minimum Gain attributable to a Member Nonrecourse Debt for any Fiscal Year, each Member who has a share of the Member Nonrecourse Debt Minimum Gain attributable to such Member Nonrecourse Debt as of the beginning of the Fiscal Year,
determined in accordance with Treasury Regulations § 1.704-2(i)(5), shall be allocated items of LLC income and gain for such year (and, if necessary, subsequent years) in an amount equal to such Member’s share of the net decrease in Member
Nonrecourse Debt Minimum Gain attributable to such Member Nonrecourse Debt, determined in accordance with Treasury Regulations §§ 1.704-2(i)(4) and (5) and the definition of Member Nonrecourse Debt Minimum Gain set forth above. This
Paragraph is intended to comply with the member nonrecourse debt minimum gain chargeback requirement in Treasury Regulations § 1.704-2(i)(4) and shall be interpreted consistently therewith. 
 (f) Qualified Income Offset. In the event any Member unexpectedly receives any adjustments, allocations, or distributions described in
Treasury Regulations §§ 1.704-1(b)(2)(ii)(d)(4), (5), or (6), items of LLC income and gain (consisting of a pro rata portion of each item of LLC income, including gross income, and gain for such year) shall be allocated to such Member in
an amount and manner sufficient to eliminate, to the extent required by the Treasury Regulations, any deficit in such Member’s Capital Account created or increased by such adjustments, allocations or distributions as quickly as possible.

 (g) Gross Income Allocation. In the event any Member has a deficit in its Capital Account at the end of any Fiscal Year,
each such Member shall be allocated a pro rata portion of each item of LLC gross income and gain, in the amount of such Capital Account deficit, as quickly as possible. 
 (h) Curative Allocations. When allocating Profits and Losses under Section 4.1, such allocations shall be made so as to offset any prior allocations of gross income under Paragraph (g) above to
the greatest extent possible so that overall allocations of Profits and Losses shall be made as if no such allocations of gross income occurred. 
 (i) Ordering. The allocations in this Exhibit to the extent they apply shall be made before the allocations of Profits and Losses under Section 4.1 and in the order in which they appear above. 
  

 C-2 

 (j) Waiver of Minimum Gain Chargeback Provisions. If the Board determines that
(i) either of the two minimum gain chargeback provisions contained in this Exhibit would cause a distortion in the economic arrangement among the Members, (ii) it is not expected that the LLC will have sufficient other items of income and
gain to correct that distortion, and (iii) the Members have made Capital Contributions or received net income allocations that have restored any previous Nonrecourse Deductions or Member Nonrecourse Deductions, the Board shall have the
authority, but not the obligation, after giving notice to the Members, to request on behalf of the LLC the Internal Revenue Service to waive the minimum gain chargeback or member nonrecourse debt minimum gain chargeback requirements pursuant to
Treasury Regulations §§ 1.704-2(f)(4) and 1.704-2(i)(4). The LLC shall pay the expenses (including attorneys’ fees) incurred to apply for the waiver. The Board shall promptly copy all Members on all correspondence to and from the
Internal Revenue Service concerning the requested waiver. 
 (k) Code Section 754 Adjustments. To the extent an adjustment
to the adjusted tax basis of any LLC asset pursuant to Code § 734(b) or Code § 743(b) is required, pursuant to Treasury Regulations § 1.704-1(b)(2)(iv)(m), to be taken into account in determining Capital Accounts, the amount of such
adjustment to the Capital Accounts shall be treated as an item of gain (if the adjustment increases the basis of the asset) or loss (if the adjustment decreases such basis), and such gain or loss shall be specially allocated to the Members in a
manner consistent with the manner in which their Capital Accounts are required to be adjusted pursuant to such Section of the Regulations. 
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 C-3 

 EXHIBIT D 
 TO THE 
 AMENDED
AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT 
 OF 
 PETROALGAE, LLC 
 A DELAWARE LIMITED LIABILITY COMPANY 
 APPRAISAL EXHIBIT 
 1. General Procedures. 
 (a) In the event (i) an Optional Purchase Event has occurred with
respect to a Member and it is necessary to determine the fair market value of any consideration proposed to be received in connection with such Optional Purchase Event or such Member’s Units pursuant to Section 7.5, or (ii) it is
otherwise necessary under the Agreement to determine the fair market value of Units or other non-cash assets, such fair market value will be determined pursuant to this Exhibit D. 
 (b) The fair market value shall be determined by mutual agreement of all parties in interest (which determination shall be final and binding on the LLC
and each of the Members); provided, however, if all parties in interest do not agree on the fair market value within ten (10) days after notice is given by one of them to all others of a request for determination of fair market value,
the fair market value shall be determined in accordance with the following provisions of this Exhibit. 
 (c) The parties in interest shall
jointly select a Qualified Appraiser (as defined below). If the parties in interest so jointly select a Qualified Appraiser, the appraiser so selected shall promptly determine the fair market value of the Units or the assets in question, which
determination shall be final and binding on the LLC and each of the Members. If they fail to jointly select a Qualified Appraiser within ten (10) days after a request by any such party to make the joint selection, the Qualified Appraiser shall,
upon application of any party in interest, be selected by the chief executive of the American Arbitration Association residing in Orlando, Florida (and if such person is not available or willing, the President of the Orange County Florida Bar
Association), whose determination shall be binding upon the LLC and each of the Members. Each party in interest shall have the right to submit such data and memoranda to the Qualified Appraiser in support of their respective positions as they may
deem necessary or appropriate. The determination of the fair market value of the Units or the assets in question by the Qualified Appraiser in accordance with the foregoing provisions shall be final and binding upon the LLC and each of the Members.

 2. Qualifications of Appraisers. 
 (a) The appraiser to be appointed pursuant to the appraisal procedures of this Exhibit shall (i) be an investment banking firm, business valuation or brokerage firm or a public accounting firm of national
reputation, (ii) not have any bias or financial or personal interest in the LLC or any past or present relationship with any of the parties in interest or any of their Affiliates, and (iii) have experience in valuing businesses or assets
to be valued, as applicable, which, to the extent possible, are similar in character to the LLC (a “Qualified Appraiser”). 
 (b) Any determination of fair market value shall be based upon the terms and conditions of this Agreement, and under no circumstances shall the Qualified Appraiser appointed pursuant to this Exhibit add to, modify, disregard or change any
of the provisions of this Agreement, and the jurisdiction and scope of such Qualified Appraiser shall be limited accordingly. The LLC shall give prompt written notice to each other party in interest of the appointment of the Qualified Appraiser
under this Exhibit, such notice to identify the Qualified Appraiser. 
  

 D-1 

 3. Assumptions; Appraisal Costs. 
 (a) In connection with any determination of the fair market value of one or more Units, the fair market value thereof shall equal the amount that would be
received by the owner of such Units with respect thereto if all of the assets of the LLC were sold for cash equal to their fair market value (as determined pursuant to this Exhibit), and the LLC paid all of its liabilities and liquidated in
accordance with this Agreement, in each case, as of the last day of the month immediately prior to the event giving rise to need to determine fair market value. 
 (b) The LLC shall pay the fees and expenses of the Qualified Appraiser. 
 [THE
REMAINDER OF THIS PAGE HAS INTENTIONALLY BEEN LEFT BLANK] 
  

 D-2Consent Agreement

 Exhibit 10.6 
 CONSENT AGREEMENT 
 This CONSENT AGREEMENT (this “Consent Agreement”), dated
as of August 14, 2008, is entered into by and among Arizona Sciences and Technology Enterprises, LLC, a Arizona limited liability company (“AzTE”), PetroAlgae, LLC, a Delaware limited liability company
(“PetroAlgae”), LV Administrative Services, Inc., a Delaware corporation, as agent to the Laurus/Valens Lenders (as defined and described below) (“LV”), and PetroTech Holdings Corp., a Delaware corporation wholly
owned by the Laurus/Valens Lenders (as defined below) (“Petrotech”). 
 WHEREAS, LV is the administrative and
collateral agent to the senior secured lenders listed on Schedule 1 attached hereto (the “Secured Lenders” and together with LV and any entity which is managed and controlled by Laurus Capital Management, LLC, a Delaware limited
liability company (“Laurus”) and/or Valens Capital Management, LLC, a Delaware limited liability company (“Valens”), collectively, the “Laurus/Valens Lenders”) to XL TechGroup, Inc., a Delaware
corporation, and certain of XL TechGroup Inc’s subsidiaries (collectively, “XLT”); 
 WHEREAS, the Laurus/Valens
Lenders, other than LV, are investment funds or other entities managed by Laurus and/or Valens or are wholly owned subsidiaries thereof; 
 WHEREAS, XLT and AzTE are the only Members of PetroAlgae and are parties to the Operating Agreement (as defined and described below); 
 WHEREAS, LV, as agent to the Laurus/Valens Lenders and Petrotech, desires that AzTE and PetroAlgae consent to (i) the Assignment (as defined below) on or about August 14, 2008 (the “Closing
Date”), (ii) the Transfer by XLT, on the Closing Date, of all of XLT’s Units in PetroAlgae (the “Units”) to Petrotech in accordance with a Delaware UCC Article 9 strict foreclosure sale pursuant to an Acceptance
Agreement substantially in the form attached hereto as Exhibit A (the “Acceptance Agreement”), and (iii) the admission of Petrotech as a Member of PetroAlgae; and 
 WHEREAS, AzTE and PetroAlgae are willing to consent to the Assignment and such Transfer and the admission of Petrotech as a Member of PetroAlgae,
upon the terms and conditions contained herein; 
 NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, each of PetroAlgae, AzTE, LV and Petrotech agrees as follows: 
 1. Capitalized terms used herein without
definition shall have the meanings assigned to such terms in that certain Amended and Restated Limited Liability Company Agreement of PetroAlgae, dated as of February 16, 2007 (as amended, restated and/or modified from time to time in
accordance with its terms, the “Operating Agreement”). 
 2. Notwithstanding anything to the contrary contained in the
Operating Agreement and subject to the terms and conditions of this Consent Agreement, each of PetroAlgae and AzTE hereby consents to, and hereby waives compliance with all requirements (including notice requirements) necessary to effect,
(a) the assignments and transfers contemplated by the 

 
Acceptance Agreement, including, without limitation, the Transfer, effective on the Closing Date, of all of the Units and/or rights thereto from XLT to to
Petrotech (the “Assignment”), (b) the admission, effective on the Closing Date, of Petrotech as a Member of PetroAlgae and (c) any subsequent transfer, sale or encumbrance of the Units to, or in favor of., any
Laurus/Valens Lender (each, a “Laurus/Valens Permitted Transferee”); provided, however, if any such Laurus/Valens Transferee seeks to be admitted as a Member of PetroaAlgae, it shall be admitted as a Member if such
Laurus/Valens Transferee and the transferor shall have fully complied with the terms and provisions of Section 7.2(b), (c), (d), and 7.3 of the Operating Agreement and shall have executed an agreement with respect to such Transfer in favor of
AzTE and PetroAlgae, containing the provisions set forth in Section 3 hereof. 
 3. Petrotech agrees that, effective at the time of
closing on the Closing Date, it will be fully bound by the provisions of the Operating Agreement and that it hereby assumes (i) all of XLT’s obligations under the Operating Agreement, and (ii) all of XLT’s obligations, if any,
under that certain License Agreement, dated February 16, 2007, by and between PetroAlgae and AzTE, as the same may be amended or restated from time to time in accordance with its terms (the “License Agreement”). AzTE
acknowledges that XLT is not a party to the License Agreement, and each of LV and Petrotech acknowledges PetroAlgae’s continuing obligations and rights under the License Agreement. 
 4. No rights or obligations contained in the License Agreement or, except as specifically provided herein, the Operating Agreement shall be amended,
modified or otherwise affected by the terms of this Consent Agreement or the Transfers described herein. 
 5. Each of PetroAlgae, LV,
Petrotech, each Laurus/Valens Permitted Transferee and AzTE shall, from and after the date hereof, upon reasonable request of any other party hereto, execute and deliver such other agreements, documents and instruments as any such party may
reasonably request to obtain the full benefit of this Consent Agreement. 
 6. Each party warrants and represents that such party is fully
entitled and duly authorized to enter into and deliver this Consent Agreement and undertake the obligations set forth herein. Each party also warrants and represents that: (i) neither the execution, nor the delivery, nor the performance of this
Consent Agreement by such party will conflict with or result in a breach or violation of, or constitute a default under, or result in the imposition of a lien, charge, or encumbrance upon any of such party’s properties, or an acceleration of
any of its indebtedness, pursuant to any of the terms of any agreement or instrument by which such party or its properties are bound, or any law, order, judgment, decree, rule or regulation applicable to it of any court, regulatory body,
administrative agency, governmental body, stock exchange or arbitrator having jurisdiction over it; and (ii) no consent, approval, authorization or order of, or declaration or filing with, any court or governmental agency or body, or any other
person or entity, is required to be obtained or filed by such party in connection with the transactions contemplated in this Consent Agreement, except for those that have been obtained or made on or prior to the Closing Date or otherwise provided
for herein. 
 7. This Consent Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective permitted
successors and assigns and shall be governed by and construed in accordance with the laws of the State of Delaware applicable to contracts made and entirely to be performed in such State. 
  

 2 

 8. This Consent Agreement may be executed by the parties hereto in one or more counterparts, each of
which shall be deemed an original and all of which when taken together shall constitute one and the same agreement. Any signature delivered by a party by facsimile or electronic transmission shall be deemed to be an original signature hereto.

 [Two Signature Pages Follow] 
  

 3 

 IN WITNESS WHEREOF, the undersigned has executed this Consent as of the date set forth above.

  

			
	ARIZONA SCIENCES AND TECHNOLOGY ENTERPRISES, LLC
		
	By:	 	 /s/ Charlie Lewis

	Name:	 	Charlie Lewis
	Title:	 	Vice President
	
	PETROALGAE, LLC
		
	By:	 	 /s/ Ottmar Dippold

	Name:	 	 Ottmar Dippold

	Title:	 	Chief Executive Officer
	
	LV ADMINISTRATIVE SERVICES, INC., as Agent
		
	By:	 	 /s/ Patrick Regan

	Name:	 	Patrick Regan
	Title:	 	Authorized Signatory
	
	PETROTECH HOLDINGS CORP.
		
	By:	 	 /s/ Patrick Regan

	Name	 	Patrick Regan
	Title	 	Authorized Signatory

 Acknowledged and Agreed: 
  

			
	XL TECHGROUP, INC.
		
	By:	 	 /s/ David P. Szostak

	Name:	 	David P. Szostak
	Title:	 	Chief Financial Officer

  

	
	 /s/ Ottmar Dippold

	Ottmar Dippold
	
	 /s/ David P. Szostak

	David Szostak
	
	 /s/ Harold Gubnitsky

	Harold Gubnitsky

 Exhibit A 
 Exhibit A 
 Acceptance Agreement 

 Exhibit A 
 PETROTECH HOLDINGS, CORP. 
 335 Madison Avenue,
10th Floor 
 New York, NY 10017

 August     , 2008 
 XL TechGroup, Inc. 
 11901 South Harbor City Blvd., Third Floor 
 Melbourne, FL 32901 
  

	 	Re:	Agreement to Accept Collateral in Partial Satisfaction of Debt 

 Ladies and Gentlemen: 
 Reference is made to (i) Securities Purchase Agreement dated as of December 30, 2005 (as amended,
modified, supplemented or restated from time to time, the “December 2005 Securities Purchase Agreement”) by and between XL TechGroup, Inc. (“XLT”) and Laurus (as defined below); (ii) Secured Term Note dated
December 30, 2005 (as amended, modified, supplemented or restated from time to time) issued by XLT to Laurus in the original principal amount of $35,000,000; (iii) Master Security Agreement dated December 30, 2005 (as amended,
modified, supplemented or restated from time to time) by and between XLT and Laurus; (iv) the Share Mortgage dated as of December 30, 2005 between the XLT and Laurus (as amended, modified, supplemented or restated from time to time);
(v) the Related Agreements (as defined in the December 2005 Securities Purchase Agreement); (vi) Securities Purchase Agreement dated as of December 29, 2006 (as amended, modified, supplemented or restated from time to time, the
“December 2006 Securities Purchase Agreement”) by and between XLT and Laurus; (vii) Secured Term Note dated December 29, 2006 (as amended, modified, supplemented or restated from time to time) issued by XLT to Laurus, in
the original principal amount of $20,000,000; (viii) the Related Agreements (as defined in the December 2006 Securities Purchase Agreement); (ix) Securities Purchase Agreement dated as of October 3, 2007 (as amended, modified,
supplemented or restated from time to time, the “October 2007 Securities Purchase Agreement”) by and between XLT and Valens US LLC (as defined below), as Agent, Valens US (as defined below) and Calliope (as defined below);
(x) Secured Term Note A dated October 3, 2007 (as amended, modified, supplemented or restated from time to time) issued by XLT to Calliope, in the original principal amount of $9,958,000; (xi) Secured Term Note A dated October 3,
2007 (as amended, modified, supplemented or restated from time to time) issued by XLT to Valens US, in the original principal amount of $3,042,000; (xii) Secured Term Note B dated October 3, 2007 (as amended, modified, supplemented or
restated from time to time) issued by XLT to Calliope, in the original principal amount of $9,192,000; (xiii) Secured Term Note B dated October 3, 2007 (as amended, modified, supplemented or restated from time to time) issued by XLT to
Valens US, in the original principal amount of $2,208,000; (xiv) Master Security Agreement dated October 3, 2007 (as amended, modified, supplemented or restated from time to time) by and between XLT and Valens US LLC, for itself and as
agent for the Purchasers (as such term is defined in the October 2007 Securities Purchase Agreement); (xv) the Share Mortgage dated as of October 3, 2007 between XLT and Valens US LLC (as amended, modified, 

 Exhibit A 
  

 
supplemented or restated from time to time); (xvi) the Related Agreements (as defined in the October 2007 Securities Purchase Agreement);
(xvii) Reaffirmation and Ratification Agreement dated as of January 30, 2008 (as amended, modified, supplemented or restated from time to time) by and among XLT and one or more Creditor Parties (as defined below); (xviii) Secured Term
Note dated as of January 30, 2008 issued by XLT to Laurus, in the original principal amount of $12,572,910.67 (as amended, modified, supplemented or restated from time to time); (xix) Secured Term Note dated as of January 30, 2008
issued by XLT to Valens US LLC, in the original principal amount of $892,023.37 (as amended, modified, supplemented or restated from time to time); (xx) Secured Term Note dated as of January 30, 2008 issued by XLT to PSource (as defined
below), in the original principal amount of $3,376,675.55 (as amended, modified, supplemented or restated from time to time); (xxi) Secured Term Note dated as of January 30, 2008 issued by XLT to Valens Offshore (as defined below), in the
original principal amount of $880,066.89 (as amended, modified, supplemented or restated from time to time); (xxii) the Amended and Restated Securities Pledge Agreement dated as of January 30, 2008 between XLT and LV Administrative
Services, Inc., as administrative and collateral agent (the “Agent”) (as amended, modified, supplemented or restated from time to time), (xxiii) Master Security Agreement dated as of January 30, 2008 by and between XLT and
Agent (as amended, modified, supplemented or restated from time to time); (xxiv) Demand Note dated July 22, 2008 issued by XLT to Valens Offshore in the original principal amount of $288,148.00; (xxv) Demand Note dated July 22,
2008 issued by XLT to Valens US LLC in the original principal amount of $76,745; (xxvi) Demand Note dated July 22, 2008 issued by XLT to Calliope in the original principal amount of $665,107; (xxvii) Demand Note dated the date hereof
issued by XLT to Laurus in the original principal amount of [$            ]; (xxviii) Demand Note dated the date hereof issued by XLT to Valens Offshore in the original
principal amount of [$            ]; (xxix) Demand Note dated the date hereof issued by XLT to PSource in the original principal amount of
[$            ]; (xxx) Demand Note dated the date hereof issued by XLT to Valens US LLC in the original principal amount of [$214,715.03]; and (xxxi) all other documents,
instruments and agreements entered into in connection with the transactions contemplated hereby and thereby, including, without limitation, security agreements, pledge agreements, collateral assignments and agreements evidencing supporting
obligations relating to any or all of the foregoing (the agreements, documents and instruments referenced in clauses (i) through (xxxi), collectively, the “Documents”). Capitalized terms used but not defined herein shall have
the meanings ascribed thereto in the Documents, as applicable. 
 From time to time, the Documents may have been assigned from one Creditor
Party to another. For purposes hereof, the term “Creditor Parties” shall mean, collectively, Laurus Master Fund, Ltd. (“Laurus”), Calliope Capital Corporation (“Calliope”), Valens Offshore SPV I, Ltd.
(“Valens Offshore”), Valens U.S. SPV I, Ltd. (“Valens US”), Valens U.S. SPV I, LLC (“Valens US LLC”) and PSource Structured Debt Limited (“PSource”). 
 As of the date hereof, each Creditor Party has contributed to the capital of PetroTech Holdings, Corp. all of the Documents and each Creditor
Party’s attendant security interests and liens such that as of the date hereof PetroTech is the current holder of all indebtedness owing by XLT under the Documents and of all security interests and liens granted by XLT to the Creditor Parties
under the Documents. XLT hereby ratifies and confirms such capital contribution and the successor secured creditor status of PetroTech. 

 Exhibit A 
  

 As of the date hereof, XLT hereby acknowledges and confirms that the aggregate outstanding balance of
all obligations and liabilities owing by XLT to PetroTech under the Documents totals [$            ] (the “Outstanding Debt Amount”). Interest continues to accrue each day
at the currently effective interest rate. 
 Subject to the terms and conditions set forth herein and in accordance with Section 9-620
of the Uniform Commercial Code, as in effect in the State of New York, XLT and PetroTech hereby agree that PetroTech shall accept the following Collateral in partial satisfaction of $45,831,367.87 of the Outstanding Debt Amount: (a) all equity
interests of XLT in each of PetroAlgae, LLC (“PetroAlgae”) and DxTech, LLC (“DXTech”); (b) all of XLT’s right, title and interest under (i) that certain promissory note dated January 1, 2008,
effective as of December 12, 2006 (as amended, modified, supplemented or restated from time to time, the “DXTech Note”), issued by DXTech to XLT in the original principal amount of Twenty-Five Million Dollars ($25,000,000),
(ii) that certain Security Agreement dated as of January 1, 2008 (as amended, modified, supplemented or restated from time to time, the “DXTech Security Agreement”) between DXTech and XLT, (iii) that certain Note
Purchase Agreement dated as of January 1, 2008, effective as of December 12, 2006 (as amended, modified, supplemented or restated from time to time, the “DXTech Note Purchase Agreement”) between DXTech and XLT and
(iv) all other agreements, documents and instruments related to or entered into in connection with the DXTech Note, DXTech Security Agreement and DXTech Note Purchase Agreement (together with the DXTech Note, DXTech Security Agreement and
DXTech Note Purchase Agreement, collectively, the “DXTech Documents”); (c) all of XLT’s right, title and interest under (i) that certain promissory note dated June 12, 2008, effective as of September 22,
2006 (as amended, modified, supplemented or restated from time to time, the “PetroAlgae Note”), issued by PetroAlgae to XLT in the original principal amount of Twenty-Five Million Dollars ($25,000,000), (ii) that certain
Security Agreement entered into effective as of September 22, 2006 (as amended, modified, supplemented or restated from time to time, the “PetroAlgae Security Agreement”) between PetroAlgae and XLT, (iii) that certain
Capital Funding and Capital Development Agreement dated June 12, 2008, effective as of September 22, 2006 (as amended, modified, supplemented or restated from time to time, the “PetroAlgae Capital Funding Agreement”)
between PetroAlgae and XLT and (iv) all other agreements, documents and instruments related to or entered into in connection with the PetroAlgae Note, PetroAlgae Security Agreement and PetroAlgae Capital Funding Agreement (together with the
PetroAlgae Note, PetroAlgae Security Agreement and PetroAlgae Capital Funding Agreement, collectively, the “PetroAlgae Documents”); (d) all right, title and interest of XLT in and to the following patent applications:
(i) patent application with serial no. 12/045,397 titled Multi-Channel Lock-In Amplifier for a Diagnostic System with filing date March 10, 2008, (ii) patent application with serial no. PCT/US08/56414 titled Multi-Channel Lock-In
Amplifier for a Diagnostic System with filing date March 10, 2008, (iii) patent application with serial no. PCT/US08/56435 titled Electrochemical Detection System with filing date March 10, 2008, (iv) patent application with
serial no. 60/988,746 titled Methods and Devices for Algal Growth Processing with filing date November 16, 2007, (v) patent application with serial no. 61/024,168 titled Methods for Algal Growth with filing date January 28, 2008,
(vi) patent application with serial no. 11/728,297 titled System and Methods of Production and Harvesting of Oil-Rich Algae with filing date March 15, 2007, (vii) patent application with serial number PCT/US07/06466 titled System and
Methods of Production and Harvesting of Oil-Rich Algae with filing date March 15, 2007 and (viii) patent application with serial no. PCT/US07/20211 titled Tubular Growth 

 Exhibit A 
  

 
Method with filing date September 13, 2007; (e) all right, title and interest of XLT in and to the following trademark applications: (i) the
trademark application in respect of the mark DXTECH with serial no. 78/576,272 and application date February 28, 2005, (ii) the trademark application in respect of the mark PAIRED DIAGNOSTICS with serial no. 78/594,487 and application date
March 24, 2005 and (iii) the trademark application in respect of the mark PETROALGAE with serial no. 78/960,636 and application date August 25, 2006; (f) that certain Warrant to Purchase Securities of TyraTech, LLC issued as of
May 1, 2006 (as amended, modified, supplemented or restated from time to time) by Tyratech, LLC (n/k/a TyraTech, Inc.) in favor of XLT; and (g) all other Collateral owned by XLT necessary to operate PetroAlgae and DXTech (the Collateral in
clauses (a) through (g) above, collectively, the “Transferred Collateral”). 
 XLT hereby acknowledges and agrees
that upon XLT’s receipt of a fully executed copy of this agreement by each of XLT and PetroTech, PetroTech shall acquire all of XLT’s right, title and interest in and to the Transferred Collateral. In furtherance of the foregoing, XLT
hereby (a) covenants that it has good and marketable title to the Transferred Collateral and does hereby transfer valid title thereto free and clear of any and all encumbrances, liens, charges or defects of any kind or nature whatsoever,
(b) represents and warrants that all corporate action required to authorize, approve and validate the transfer to PetroTech of the Transferred Collateral has been duly and lawfully taken, (c) represents and warrants that XLT has not made
any prior sale, assignment or transfer of the Transferred Collateral, or any interest therein, to any person, corporation or entity, (d) covenants that it will from time to time on demand execute any and all such further documents, instruments
and agreements to which PetroTech, its successors and assigns, may deem necessary, desirable or proper to effect the complete transfer of the Transferred Collateral or any interest therein unto PetroTech, its successors and assigns, and/or to
further evidence the right, title and interest therein of PetroTech, its successors and assigns and (e) makes, constitutes and appoints PetroTech, its successors and assigns, its true and lawful attorneys, irrevocably in its name or otherwise,
to execute any and all documentation on XLT’s behalf and to do all other things and take all such action PetroTech deems necessary to carry out the terms of this agreement. Neither PetroTech nor the attorney will be liable for any acts or
omissions or for any error of judgment or mistake of fact or law in connection with the exercise of such power of attorney, which is hereby coupled with an interest and is irrevocable. 
 The parties hereto hereby agree that, notwithstanding anything to the contrary contained herein, (a) the Purchase Option Agreement dated as of
December 30, 2005 (as amended, modified, supplemented or restated from time to time) between XLT and Laurus shall remain in full force and effect, which such agreement shall be assigned by XLT to PetroTech, (b) the Purchase Option
Agreement dated as of October 3, 2007 (as amended, modified, supplemented or restated from time to time) among XLT, Valens US LLC and Calliope shall remain in full force and effect, which such agreement shall be assigned by XLT to PetroTech,
and (c) the Creditor Parties have not transferred to PetroTech any ownership interests (as opposed to security interests) of any capital stock of TyraTech, Inc. and such ownership interests shall continue to be held by each such Creditor Party
and/or its subsidiaries and affiliates. 
 In consideration of PetroTech’s agreements contained herein, after giving effect to the
acceptance by PetroTech of the Transferred Collateral in accordance with the terms of this agreement, XLT hereby absolutely and unconditionally releases and forever discharges PetroTech, each Creditor Party, DXTech, PetroAlgae, Arizona Sciences and
Technology 

 Exhibit A 
  

 
Enterprises LLC, an Arizona limited liability company, and any and all participants, predecessors, parent corporations, subsidiary corporations, affiliated
corporations, related corporate divisions, insurers, indemnitors, agents, representatives, consultants, attorneys, fiduciaries, partners and all successors and assigns thereof, together with all of the present and former directors, officers, agents
and employees of any of the foregoing, from any and all claims, demands or causes of action of any kind, nature or description, whether arising in law or equity or upon contract or tort or under any state or federal law or otherwise, which XLT has
had, now has or has made claim to have against any such person or entity for or by reason of any act, omission, matter, cause or thing whatsoever arising from the beginning of time to and including the date of this letter agreement, whether such
claims, demands and causes of action are matured or unmatured or known or unknown. 
 This letter agreement shall be binding upon and inure
to the benefit of the parties hereto and their respective successors and assigns and shall be governed by and construed in accordance with the laws of the State of New York. 
 [Signature Pages Follow] 

 Exhibit A 
  

 This letter agreement may be executed by the parties hereto in one or more counterparts, each of
which shall be deemed an original and all of which when taken together shall constitute one and the same agreement. Any signature delivered by a party by facsimile transmission shall be deemed to be an original signature hereto. 
  

			
	 Sincerely,

	
	PETROTECH HOLDINGS CORP.
		
	By:	 	  

	Name:	 	
	Title:	 	

 There have occurred and are continuing defaults under the Documents. The undersigned
consents to the acceptance of the Transferred Collateral in partial satisfaction of the Outstanding Debt Amount as described in this letter agreement. 
  

			
	Sincerely,
	
	XL TECHGROUP, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	

 Exhibit A 
  

 Schedule 1 
 Senior secured lenders 
 1) LAURUS MASTER FUND, LTD. 
 2) VALENS U.S. SPV I, LLC 
 3) VALENS OFFSHORE SPV I, LTD. 
 4) PSOURCE STRUCTURED DEBT LIMITED 
 5) LV ADMINISTRATIVE SERVICES, INC., AS AGENT 
 6) CALLIOPE CAPITAL CORPORATION 
 7) VALENS U.S.SPV I, LTD.

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