Document:

Filed by Automated Filing Services Inc. (604) 609-0244 - South Sea Energy Corp. - Exhibit 10.1

EXHIBIT 10.1

LETTER OF INTENT

THIS LETTER OF INTENT, hereinafter referred to as the
“LOI”, is entered into, dated and made effective this 15th day of June, 2007,

	BETWEEN: 	SOUTH SEA ENERGY CORP. (a Nevada
      corporation, formerly Henley Ventures Inc.) 
	  	
	  	(“SOUTH SEA”) 
	 	 
	AND: 	CBM ASIA DEVELOPMENT CORP. (a British
      Columbia corporation) 
	  	
	  	(“CBM”) 

WHEREAS CBM is a party to a participation agreement (the
“Participation Agreement”) dated January 17, 2007 between itself,
Ephindo-Ilthabi CBM Holding Inc. and Far East Methane, LLC concerning
participation in a coal bed methane project in East Kalimantan, Indonesia (the
“CBM Project”).

AND WHEREAS South Sea wishes to acquire, and CBM wishes
to assign to South Sea, the interest of CBM in the Participation Agreement such
that South Sea would acquire all of the beneficial right, title and interest of
CBM (the “Interest” or the “Assets”) in and to the CBM Project.

AND WHEREAS the parties wish to enter into a letter of
intent which states that, upon completion of a thirty (30) day due diligence
period, and assuming that South Sea is satisfied with the results of its due
diligence, the parties will negotiate a formal, definitive assignment and
acquisition agreement or other transaction structure whereby South Sea would
acquire the Interest.

NOW, THEREFORE, in consideration of $10.00 and other
good and valuable consideration, the parties agree as follows: 

	1. 	
      The parties hereto agree that they will act together
      towards ensuring that the parties hereto enter into, on or before July 1,
      2007, a definitive agreement (the “Definitive Agreement”) containing
      substantially the same terms and provisions as this LOI.

	 	 	 
	2. 	
      The Definitive Agreement shall provide for:

	 	 	 
		(a) 	
      the issuance, by South Sea, of twenty six (26) million
      shares of common stock of South Sea (the “Directors Shares”), in the
      manner described in sections 4 and 5 below;
and

		(b) 	
      the payment, upon execution of this Letter of Intent, of
      a refundable deposit (the “Deposit”) of US$100,000 to CBM by South Sea,
      which deposit will become non-refundable upon CBM providing to South Sea
      the Legal Opinion referred to below.

	 	 	 
	3. 	
      The Definitive Agreement shall provide that the Closing
      shall occur as promptly as practicable, but in all events on or before
      July 30, 2007 unless otherwise agreed by the parties thereto. In the event
      that Closing does not occur on or before July 30, 2007:

	 	 	 
		(a) 	
      the New Directors and Alan Charuk agree to return the
      26,000,000 Directors Shares to treasury in exchange for the return of
      their purchase price;

		 
		(b) 	
      the Deposit will, unless it has become non-refundable
      pursuant to section 2(b), be refunded by CBM;

		
	 	 	 
		(c) 	
      CBM will have a security interest granted in the Assets
      to the extent and value of the US$100,000, which security interest will be
      null and void upon payment of the US$100,000 or upon the Deposit becoming
      non-refundable pursuant to section 2(b); and

		
		(d) 	
      CBM will have the right to acquire, until September 30,
      2007, any Indonesian properties (the “Other Properties”) acquired by
      South Sea (other than the Assets) by payment to South Sea of that amount
      which South Sea expended to acquire the Other Properties.

		
	4. 	
      Upon execution of this Letter of Intent, South Sea will
      appoint as its Chairman, President and Director, Alan Charuk. Concurrently
      with his appointment, Charuk will enter into an agreement, in the form
      agreed by him and South Sea to be of the most tax advantageous to him,
      providing for his purchase of up to 20,000,000 shares of South Sea for
      1/10th of one cent (being $0.001) per share.

	 	 	 
	5. 	
      Upon execution of this Letter of Intent, CBM will have
      the right to appoint a total of three (3) directors (the “New Directors”)
      to the Board of Directors of South Sea, in addition to Alan Charuk.
      Concurrently with their appointment, the New Directors will enter into
      agreement, in the form agreed by them and South Sea to be of the most tax
      advantageous to them, providing for their purchase of up to 6,000,000
      shares of South Sea for 1/10th of one cent (being $0.001 per
      share).

	 	 	 
	6. 	
      The Definitive Agreement will provide that closing of the
      transactions contemplated in the Definitive Agreement (the “Closing”) will
      be conditional upon the following:

	 	 	 
		
      (a) 
	CBM shall operate its business only in the ordinary
      course and will not sell, distribute, license or encumber any of the
      Assets;
	 	 	 
		
      (b) 
	the receipt of any certificates, legal opinions
      (including the Legal Opinion defined in section 6(d)), tax opinions, other
      opinions and documents which South Sea may reasonably request, including
      documents relating to any tests or geological work performed or studies or
      reports completed (provided these are not subject to

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			non-disclosure covenants by CBM in connection
      with any third-party agreements);
	 	 	 	 
		(c) 	
      the receipt of all consents, approvals, authorizations
      and orders required of or for the completion of any document required
      hereunder;

	 	 	 	 
		(d) 	
      satisfactory completion of due diligence, to be conducted
      by CD Farber Law Corp. or such other firm as South Sea chooses to use, at
      the absolute and sole discretion of South Sea, concerning the business,
      affairs, financial affairs and Assets of CBM and the legal status of the
      Interest as well as the receipt of a legal opinion (the “Legal Opinion”)
      which Legal Opinion shall contain opinions given by a qualified Indonesian
      lawyer stating that the Assets are in good standing under applicable
      Indonesian laws and that the Assets will be transferrable to South Sea
      upon closing of the Definitive Agreement; and

	 	 	 	 
		(e) 	
      satisfactory completion of due diligence, at the absolute
      and sole discretion of CBM, concerning the business, affairs, financial
      affairs and assets of South Sea;

	 	 	 	 
			(i) 	
      the existence of no outstanding mergers, acquisitions,
      financial commitments, obligations, liabilities, etc. other than those
      contemplated in this transaction or incurred in the ordinary course of
      business.

	 	 	 	 
	7. 	
      South Sea will, in the Definitive Agreement, represent
      and warrant to CBM that:

	 	 	 	 
		(a) 	
      it is a public corporation incorporated and is in good
      standing with all regulatory agencies and its shares are authorized to
      trade on the OTC Bulletin Board and has, as of the date hereof, a total of
      52,528,000 shares of common stock outstanding including 5,548,000 shares
      issued effective June 6, 2007;

	 	 	 	 
		(b) 	
      there are no legal actions against South Sea or its
      directors or officers and the company knows of no intended legal actions
      against the company and is not engaged in any legal actions against other
      parties;

	 	 	 	 
		(c) 	
      its business and financial condition are as set forth in
      its filings with the SEC on the EDGAR database and is the filings are
      current as of the date hereof;

	 	 	 	 
		(d) 	
      there are no outstanding mergers, acquisitions, financial
      commitments, obligations, liabilities, etc. other than those contemplated
      in this transaction and publicly disclosed concerning South Sea;

	 	 	 	 
		(e) 	
      there are no legal actions against the company or
      directors, officers and/or shareholders of the company nor does South Sea
      know of any intended legal actions against it or any of its directors and
      South Sea is not engaged in any legal actions against other parties, and
      is current in all filings with tax and regulatory authorities;
  and

3

		(f) 	
      there have been no other issuances of shares of its
      capital stock, or instruments exercisable for, convertible into or
      otherwise entitling the holder to acquire shares of its capital stock,
      other than in connection with the Closing or financing of the transactions
      to be contemplated in the Definitive Agreement (and then only on the terms
      contemplated by the Definitive Agreement).

	 	 	 
	8. 	
      CBM will, in the Definitive Agreement, represent and
      warrant to South Sea that:

	 	 	 
		(a) 	
      it is a British Columbia limited liability company and is
      in good standing with all regulatory agencies;

	 	 	 
		(b) 	
      there are no legal actions against the company or
      directors of the company nor does CBM know of any intended legal actions
      against it or any of its directors and CBM is not engaged in any legal
      actions against other parties, and is current in all filings with tax and
      regulatory authorities;

	 	 	 
		(c) 	
      its business and financial condition remain materially
      unchanged from any due diligence or financial statement documentation
      provided to South Sea prior to Closing;

	 	 	 
		(d) 	
      it owns 100% beneficial right, title and interest in and
      to the assets (the “Assets”) which will be more particularly disclosed in
      a schedule to the Definitive Agreement, subject to any liens, charges,
      securitizations or debts disclosed in the financial statements of CBM
      provided to South Sea prior to Closing;

	 	 	 
		(e) 	
      there have been no other issuances of shares of its
      capital stock, or instruments exercisable for, convertible into or
      otherwise entitling the holder to acquire shares of its capital stock,
      other than in connection with the Closing or financing of the transactions
      to be contemplated in the Definitive Agreement (and then only on the terms
      contemplated by the Definitive Agreement);

	 	 	 
		(f) 	
      there are no outstanding mergers, acquisitions, financial
      commitments, obligations, liabilities, etc. other than those contemplated
      in this transaction.

	 	 	 
	9. 	
      The Definitive Agreement shall provide that each and
      every obligation of South Sea to be performed hereunder shall be
      subject to the satisfaction prior thereto of the following
    conditions:

	 	 	 
	 	a) 	 the representations and warranties made by CBM in this
        LOI and the Definitive Agreement or given on its behalf hereunder shall
        be substantially accurate in all material respects on and as of the closing
        date with the same effect as though such representations and warranties
        had been made or given on and as of the closing date;

	 	 	 
	 	b) 	 CBM shall have performed and complied with all obligations
        and covenants required by the Definitive Agreement to be performed or
        complied with by it prior to or at Closing;

4

	 	c) 	
      South Sea shall have been furnished that information on
      the business and affairs of CBM which it deems, in its sole and absolute
      discretion, to be necessary for it to meet its continuous disclosure
      obligations under the Securities Exchange Act of 1934 upon
  Closing;

	 	 	 
	 	d) 	
      as of Closing there shall not have occurred any material
      adverse change to CBM or to the Assets, financially or otherwise, which
      materially impairs the ability of South Sea to conduct its
  business;

	 	 	 
	 	e) 	
      the completion, by CBM and South Sea, of any financial
      statements required to be filed following the Closing by South Sea as a
      reporting issuer under the Securities Exchange Act of 1934;

	 	 	 
	 	f) 	
      CBM shall have provided audited financial statements and
      a statement from its intellectual property lawyers as to the state of its
      patent and other intellectual property applications; and

	 	 	 
	 	g) 	
      the opinion of counsel to South Sea that the Closing will
      not result in South Sea breaching any applicable securities law, rules and
      regulations.

	10. 	The Definitive Agreement shall provide that
      each and every obligation of CBM to be performed on Closing shall be
      subject to the satisfaction prior thereto of the following conditions:
  

	 	(a) 	
      the representations and warranties made by South Sea in
      this LOI and the Definitive Agreement or given on its behalf hereunder
      shall be substantially accurate in all material respects on and as of the
      closing date with the same effect as though such representations and
      warranties had been made or given on and as of the closing date;

	 	 	 
	 	(b) 	
      South Sea shall have performed and complied with all
      obligations and covenants required by the Definitive Agreement to be
      performed or complied with by it prior to or at Closing; and

	 	 	 
	 	(c) 	
      as of Closing there shall not have occurred any material
      adverse change to South Sea, financially or otherwise, which materially
      impairs the ability to conduct its business.

	11. 	Neither South Sea, on the one hand, nor CBM, on
      the other, will make any disclosure or public announcements of the
      proposed transactions, the Definitive Agreement or the terms thereof
      without the prior knowledge of the other, which shall not be unreasonably
      withheld. 
	  	  
	12. 	Each party agrees and acknowledges that such
      party and its directors, officers, employees, agents and representatives
      will disclose business information and information about the proposed
      transaction in the course of securing financings for South Sea and CBM and
      that both parties and their representatives may be required to disclose
      that 

5

information under the continuous
disclosure requirements of the Securities Exchange Act of 1934. 

	13. 	The parties hereby agree that neither will
      solicit any third party for the licensing, lease, transfer or sale of any
      or all their respective Assets, or solicit opportunities for either party
      to enter into any discussions with any third party for the licensing,
      lease, transfer or sale of any or all of its respective Assets, for the
      term of the Definitive Agreement. This section shall not be read to
      prohibit the parties from conducting such discussions which are in the
      ordinary course of business but is intended to be read as protecting each
      of the parties from the other entering into negotiations which would
      conflict with the transactions contemplated by this LOI and by the
      Definitive Agreement. 
	 
	14. 	This LOI shall be construed in accordance with,
      and governed by, the laws of the State of Nevada, and each party
      separately and unconditionally subjects to the jurisdiction of any court
      of competent authority in the State of Nevada, and the rules and
      regulations thereof, for all purposes related to this agreement and/or
      their respective performance hereunder. 
	 
	15. 	This LOI sets forth the entire understanding of
      the parties with respect to the subject matter hereof and may be modified
      only by a written document signed by all parties. The Definitive Agreement
      will also provide that it can be modified only by a written document
      signed by all parties. 
	 
	16. 	The parties shall, upon Closing, prepare,
      execute and file any and all documents necessary to comply with all
      applicable federal and state securities laws, rules and regulations in any
      jurisdiction where they are required to do so. The parties acknowledge
      that the Directors’ Shares will be subject to applicable resale
      restrictions in the United States and may not be resold in the United
      States or to or for the benefit of a US resident person without
      registration under the Securities Act of 1933 or an exemption from
      registration such as Rule 144. The Directors Shares will not carry
      registration rights or piggy back registration rights. 
	
	17. 	CBM acknowledges and agrees that South Sea
      Energy Corp. has recently completed a name change to “South Sea Energy
      Corp.” from Henley Ventures, Inc. 
	 
	18. 	If any term or provision hereof shall be held
      illegal or invalid, this LOI shall be construed and enforced as if such
      illegal or invalid term or provision had not been contained herein. 
	 
	19. 	All references to currency in this LOI are
      references to the lawful currency of the United States of America. 
	 
	20. 	The parties hereto agree that CD Farber Law
      Corp. has acted as counsel to South Sea but has not acted, and cannot act,
      to provide it with any advice regarding Indonesian laws and, in
      particular, tax and mineral regulations applicable to its business. CD
      Farber 

6

Law Corp. has not provided advice, including tax advice, to any
other party to this transaction.

DATED EFFECTIVE THIS 15TH DAY OF JUNE, 2007

/s/ "Dennis Mee"
Dennis Mee, Director and
CFO
____________________________
SOUTH SEA ENERGY
CORP.

The above terms are hereby read, understood, acknowledged
and accepted effective the 15th day of June, 2007.

/s/ "Alan Charuk"
Alan Charuk, Director and
President
____________________________ 
CBM ASIA DEVELOPMENT
CORP.

7Exhibit
10.1

EMPLOYMENT AGREEMENT

This Employment Agreement (“Agreement”) is made as of
the 13th day of June, 2007, between Metabolix, Inc.
(the “Company”), and Jay Kouba (the “Executive”).

WHEREAS, the Company
desires to employ the Executive and the Executive desires to be employed by the
Company on the terms contained herein.

NOW, THEREFORE,  in consideration of the mutual
covenants and agreements herein contained and other good and valuable
consideration, the receipt and sufficiency of which is hereby acknowledged, the
parties agree as follows:

1.                                       Term.  This Agreement shall be effective on the date
it is executed by the parties (“Effective Date”).  Subject to the provisions of Section 4, the
term of this Agreement shall be from May 15, 2007 until May 15, 2008 (“Term”)
at which point it shall expire and be of no further force or effect.

2.                                       Position and
Duties.  The Executive shall
serve as the President and Chief Executive
Officer  of the Company, reporting
to and serving on the Board of Directors (the “Board”), and shall have the
responsibilities, duty and authority commensurate with that position.  In addition, the Executive shall perform such
services and duties in connection with the business, affairs and operations of
the Company as may be assigned or delegated to the Executive from time to time
by or under the authority of the Board. 
The Executive shall devote his full working time and efforts to the
business and affairs of the Company. 
Notwithstanding the foregoing, the Executive may serve on other boards
of directors, with the approval of the Board, or engage in religious,
charitable or other community activities as long as such services and
activities are disclosed to the Board and do not materially interfere with the
Executive’s performance of his duties to the Company as provided in this
Agreement.  The parties agree that the
Executive has disclosed, and the Board has approved, Executive’s services, including
Executive’s service as a member of the Board of Directors, to the entities as
described in Schedule A attached hereto, which is incorporated into this
Agreement.

3.                                       Compensation
and Related Matters.

(a)                                  Base Salary.  The
Executive’s annual base salary shall be $30,000.00 (“Base Salary”),  payable in periodic installments in
accordance with the Company’s usual practice for its senior executives.

(b)                                 Equity
Compensation.  At its next regularly
scheduled meeting on or after the Effective Date, the Company’s Compensation
Committee shall grant to the Executive an option to purchase 83,312 shares of
the Company’s common stock at the closing price as reported on NASDAQ on the
day of grant, pursuant to a Stock Option Agreement and the Metabolix, Inc. 2006
Stock Plan.  The Stock Option Agreement
shall provide that this option shall vest and become exercisable in equal
increments of 20,828 shares on each of the following dates:  August 1, 2007, November
1, 2007, February 1, 2008, and May 1, 2008.  Once exercisable, this stock
option shall continue to be exercisable at any time or times prior to the close
of business on its expiration date, which shall be ten (10) years after the
date of grant; 

provided, that if the
Executive’s employment is terminated for Cause (as defined below), any portion
of this stock option outstanding on the date of termination of employment for
Cause shall terminate immediately and be of no further force and effect.

(i)                                     Acceleration
of Vesting Pursuant to a Change of Control. 
If there is a Change of Control, as defined below, all options granted
but not yet vested according to the terms of the relevant stock option
agreements shall immediately vest and be exercisable.

(ii)                                  Change
of Control shall mean the occurrence of one or more of the following events:

(A)                              any “person”
(as such term is used in Sections 13(d) and 14(d)(2) of the Securities Exchange
Act of 1934, as amended (the “Exchange Act”)) becomes a “beneficial owner” (as
such term is defined in Rule 13d-3 promulgated under the Exchange Act) (other
than the Company, any trustee or other fiduciary holding securities under an
employee benefit plan of the Company, or any corporation owned, directly or
indirectly, by the stockholders of the Company, in substantially the same
proportions as their ownership of stock of the Company), directly or
indirectly, of securities of the Company, representing fifty percent (50%) or
more of the combined voting power of the Company’s then outstanding securities;
or

(B)                                persons
who, as of the Effective Date, constituted the Company’s Board of Directors
(the “Incumbent Board”) cease for any reason including, without limitation, as
a result of a tender offer, proxy contest, merger or similar transaction, to
constitute at least a majority of the Board of Directors, provided that any
person becoming a director of the Company subsequent to the Effective Date
whose election was approved by at least a majority of the directors then
comprising the Incumbent Board shall, for purposes of this Section 6(f), be
considered a member of the Incumbent Board; or

(C)                                the
consummation of a merger or consolidation of the Company with any other
corporation or other entity, other than (1) a merger or consolidation which
would result in the voting securities of the Company outstanding immediately
prior thereto continuing to represent (either by remaining outstanding or by
being converted into voting securities of the surviving entity) more than fifty
percent (50%) of the combined voting power of the voting securities of the Company
or such surviving entity outstanding immediately after such merger or
consolidation or (2) a merger or consolidation effected to implement a
recapitalization of the Company (or similar transaction) in which no “person”
(as hereinabove defined) acquires more than fifty percent (50%) of the combined
voting power of the Company’s then outstanding securities; or

 2
 

(D)                               the
stockholders of the Company approve a plan of complete liquidation of the Company
or an agreement for the sale or disposition by the Company of all or
substantially all of the Company’s assets.

(iii)                               It
is the intention of the Executive and of the Company that no payments by the Company
to or for the benefit of the Executive under this Agreement or any other
agreement or plan, if any, pursuant to which the Executive is entitled to
receive payments or benefits shall be nondeductible to the Company by reason of
the operation of Section 280G of the Code relating to parachute payments or any
like statutory or regulatory provision. 
Accordingly, and notwithstanding any other provision of this Agreement
or any such agreement or plan, if by reason of the operation of said Section
280G or any like statutory or regulatory provision, any such payments exceed
the amount which can be deducted by the Company, such payments shall be reduced
to the maximum amount which can be deducted by the Company.  To the extent that payments exceeding such
maximum deductible amount have been made to or for the benefit of the
Executive, such excess payments shall be refunded to the Company with interest
thereon at the applicable Federal rate determined under Section 1274(d) of the
Code, compounded annually, or at such other rate as may be required in order
that no such payments shall be nondeductible to the Company by reason of the
operation of said Section 280G or any like statutory or regulatory
provision.  To the extent that there is
more than one method of reducing the payments to bring them within the
limitations of said Section 280G or any like statutory or regulatory provision,
the Executive shall determine which method shall be followed, provided that if
the Executive fails to make such determination within forty-five (45) days
after the Company has given notice of the need for such reduction, the Company
may determine the method of such reduction in its sole discretion.

(c)                                  Bonus.  On August
1, 2007, the Company’s Compensation Committee shall grant to Executive an
option to purchase up to 20,000 shares of the Company’s common stock at the
closing price as reported on NASDAQ on the day of grant, that will vest and
become exercisable on the date that the Executive satisfies the terms of his
bonus plan, which shall be mutually agreed upon no later than August 1, 2007.  Once
exercisable, this stock option shall continue to be exercisable at any time or
times prior to the close of business on its expiration date, which shall be ten
(10) years after the date of grant; provided, that if the Executive’s
employment is terminated for Cause (as defined below), any portion of this
stock option outstanding on the date of termination of employment for Cause
shall terminate immediately and be of no further force and effect.

(d)                                 Other Benefits.  The
Executive shall be entitled to participate in or receive benefits under any
employee benefit plan or arrangement which is now or in the future made
available by the Company to its executives, including participation in any
tax-deferred 401(k) retirement plan, subject to and on a basis consistent with
the terms, conditions and overall administration of such plan or
arrangement.  Nothing contained herein
will require the Company to establish or maintain any such plan.

(e)                                  Vacations.  The Executive shall be entitled to paid
holidays and paid vacation, accrued and used in accordance with the Company’s
policies as currently in effect.  All 

 3
 

vacation days
will be taken at times mutually agreed by the Executive and the Company and
will be subject to the business needs of the Company.

(f)                                    Travel to and
from Chicago, Illinois.  The
Company will reimburse Executive for weekly round-trip, coach travel costs between
Boston and Chicago.

4.                                       Termination.  The Executive’s employment hereunder may be
terminated without any breach of this Agreement under the following
circumstances:

(a)                                  Death.  The Executive’s employment hereunder shall
terminate upon his death.

(b)                                 Disability.  If the Executive shall be disabled so as to
be unable to perform the essential functions of the Executive’s then existing
position or positions under this Agreement with or without reasonable
accommodation, the Board may remove the Executive from any responsibilities
and/or reassign the Executive to another position with the Company during the
period of such disability. 
Notwithstanding any such removal or reassignment, the Executive shall
continue to receive the Executive’s Base Salary (less any disability pay or
sick pay benefits to which the Executive may be entitled under the Company’s
policies) and benefits under this Agreement (except to the extent that the
Executive may be ineligible for one or more such benefits under applicable plan
terms) for the Term or three (3) months (whichever is shorter), and the
Executive’s employment may be terminated by the Company at any time
thereafter.  Nothing in this Section 4(b)
shall be construed to waive the Executive’s rights, if any, under existing law
including, without limitation, the Family and Medical Leave Act of 1993, 29
U.S.C. §2601 et seq. and the Americans with
Disabilities Act, 42 U.S.C. §12101 et seq.

(c)                                  Termination by
Company for Cause.  At any
time, the Company may terminate the Executive’s employment hereunder for Cause
if such termination is approved by a majority of the Board at a meeting of the
Board called and held for such purpose. 
For purposes of this Agreement, “Cause” shall mean:  (i) conduct by the Executive constituting a
material act of willful misconduct in connection with the performance of his
duties, including, without limitation, misappropriation of funds or property of
the Company or any of its subsidiaries or affiliates other than the occasional,
customary and de minimis use of Company property for personal purposes; (ii)
the commission by the Executive of any felony or a misdemeanor involving moral
turpitude, deceit, dishonesty or fraud, or any conduct by the Executive that
would reasonably be expected to result in material injury to the Company or any
of its subsidiaries and affiliates if he were retained in his position; (iii)
continued, willful and deliberate non-performance by the Executive of his
duties hereunder (other than by reason of the Executive’s physical or mental
illness, incapacity or disability) which has continued for more than 30 days
following written notice of such non-performance from the Board; (iv) a breach
by the Executive of any of the provisions contained in Section 6 of this
Agreement; (v) a violation by the Executive of the Company’s employment
policies which has continued following written notice of such violation from
the  Board;  or (vi) willful failure to
cooperate with a bona fide internal investigation or an investigation by
regulatory or law enforcement authorities, after being instructed by the
Company to cooperate, or the willful destruction or failure to preserve
documents or other materials known to be relevant to such investigation or the
willful inducement of others to fail to cooperate or to produce documents or
other materials.  For 

 4
 

purposes of
clauses (i), (iii) or (vi) hereof, no act, or failure to act, on the Executive’s
part shall be deemed “willful” unless done, or omitted to be done, by the
Executive without reasonable belief that the Executive’s act or failure to act,
was in the best interest of the Company and its subsidiaries and affiliates.

(d)                                 Termination
Without Cause.  The Company
may terminate the Executive’s employment hereunder without Cause, if such
termination is approved by a majority of the Board  at a meeting of the Board
called and held for such purpose.

(e)                                  Termination by
the Executive.  The Executive
may terminate his employment hereunder for any reason, upon written notice to
the Board.

5.                                       Compensation
Upon Termination.

(a)                                  Termination
Generally.  If the Executive’s
employment with the Company is terminated for any reason, the Company shall pay
or provide to the Executive (or to his authorized representative or estate) any
earned but unpaid Base Salary, accrued but unused vacation, and any vested
benefits the Executive may have under any employee benefit plan of the Company
(the “Accrued Benefit”), through the date of termination.

(b)                                 Termination
by the Company Without Cause.  If the
Executive’s employment is terminated by the Company without Cause as provided
in Section 4(d), then all options granted but not yet vested according to the
terms of the relevant stock option agreements shall immediately vest and be
exercisable, provided Executive
signs and does not revoke a general release in a form acceptable to the Company
(“General Release”).

6.                                       Noncompetition,
Confidentiality and Inventions Agreement.

Executive agrees to
execute the Company’s Employee Noncompetition, Confidentiality and Inventions
Agreement within five (5) days of the Effective Date.

7.                                       Taxation
of Payments and Benefits.  The
Company shall undertake to make deductions, withholdings and tax reports with
respect to payments and benefits under this Agreement to the extent that it
reasonably and in good faith believes that it is required to make such
deductions, withholdings and tax reports. 
Payments under this Agreement shall be in amounts net of any such
deductions or withholdings.  Nothing in
this Agreement shall be construed to require the Company to make any payments
to compensate the Executive for any adverse tax effect associated with any
payments or benefits or for any deduction or withholding from any payment or
benefit.

With respect to any
equity compensation, including the options identified above, the Executive
shall, not later than the date as of which the receipt of any such equity compensation
becomes a taxable event for federal income tax purposes, pay to the Company any
federal, state and local taxes required by law to be withheld on account of
such taxable event.

8.                                       Consent
to Jurisdiction.  The parties hereby
consent to the jurisdiction of the Superior Court of the Commonwealth of
Massachusetts and the United States District Court for the District of
Massachusetts.  Accordingly, with respect
to any such court action, the Executive 

 5
 

(a) submits to the personal jurisdiction of such
courts; (b) consents to service of process; and (c) waives any other
requirement (whether imposed by statute, rule of court, or otherwise) with
respect to personal jurisdiction or service of process.

9.                                       Integration.  This Agreement between Executive and the
Company, together with the Employee Noncompetition, Confidentiality and
Inventions Agreement, and Stock Option Agreement, constitute the entire
agreement between the parties with respect to the subject matter hereof and
supersedes all prior agreements between the parties concerning such subject
matter.

10.                                 Enforceability.  If any portion or provision of this Agreement
(including, without limitation, any portion or provision of any section of this
Agreement) shall to any extent be declared illegal or unenforceable by a court
of competent jurisdiction, then the remainder of this Agreement, or the
application of such portion or provision in circumstances other than those as
to which it is so declared illegal or unenforceable, shall not be affected
thereby, and each portion and provision of this Agreement shall be valid and
enforceable to the fullest extent permitted by law.

11.                                 Waiver.  No waiver of any provision hereof shall be
effective unless made in writing and signed by the waiving party.  The failure of any party to require the
performance of any term or obligation of this Agreement, or the waiver by any
party of any breach of this Agreement, shall not prevent any subsequent
enforcement of such term or obligation or be deemed a waiver of any subsequent
breach.

12.                                 Assignment.  Neither the Company nor the Executive may
make any assignment of this Agreement or any interest herein, by operation of
law or otherwise, without the prior written consent of the other party;
provided that the Company may assign its rights under this Agreement without
the consent of the Executive in the event that the Company shall effect a
reorganization, consolidate with or merge into any other corporation,
partnership, organization or other entity, or transfer all or substantially all
of its properties or assets to any other corporation, partnership, organization
or other entity.  This Agreement shall
inure to the benefit of and be binding upon the Company and the Executive,
their respective successors, executors, administrators, heirs and permitted
assigns.

13.                                 Notices.  Any notices, requests, demands and other
communications provided for by this Agreement shall be sufficient if in writing
and delivered in person or sent by a nationally recognized overnight courier
service or by registered or certified mail, postage prepaid, return receipt
requested, to the Executive at the last address the Executive has filed in
writing with the Company or, in the case of the Company, at its main offices,
attention of the Board.

14.                                 Amendment.  This Agreement may be amended or modified
only by a written instrument signed by the Executive and by a duly authorized
representative of the Company.

15.                                 Governing
Law.  This is a Massachusetts
contract and shall be construed under and be governed in all respects by the
laws of the Commonwealth of Massachusetts, without giving effect to the
conflict of laws principles of such Commonwealth.  With respect to any disputes concerning
federal law, such disputes shall be determined in accordance with the law as it
would be interpreted and applied by the United States Court of Appeals for the
First Circuit.

 6
 

16.                                 Counterparts.  This Agreement may be executed in any number
of counterparts, each of which when so executed and delivered shall be taken to
be an original; but such counterparts shall together constitute one and the
same document.

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

	
  

  	
  METABOLIX, INC.

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/ Anthony J. Sinskey

  	
   

  
	
   

  	
   

  	
   Anthony J.
  Sinskey

  
	
   

  	
   

  	
   Chairman
  of the Compensation Committee

  
	
   

  	
   

  	
   

  
	
   

  	
  Date:

  	
  June 4, 2007

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
  JAY
  KOUBA

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  /s/ Jay Kouba

  	
   

  
	
   

  	
   

  
	
   

  	
  Date:

  	
  June 13, 2007

  	
   

  
							

 

 7
 

SCHEDULE A

In accordance with
Section 2 of his Employment Agreement with Metabolix, Inc. (the “Company”), Jay
Kouba (the “Executive”) has disclosed, and the Board of Directors of the
Company has approved, the following:

1.                                       Executive
is serving and will continue to serve as a member of the Board of Directors of
Advanced Biofuels and Virent Energy Systems.

2.                                       In
his capacity as a member of the Board of Directors of Advanced Biofuels,
Executive shall hold the title of “Vice Chairman of the Board and Chief
Strategist.”  It is expected that Executive
may accept the position of Chief Executive Officer of Advanced Biofuels
following his employment with the Company. 
It is expected that Advanced Biofuels may publicize its current
relationship with Executive and its future anticipated employment of Executive.

 8

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