MASTER SECURITY AGREEMENT No. 5081102 Dated as of October 25, 2005 (“Agreement”)

Exhibit 10.21

No. 5081102

Dated as of October 25, 2005 (“Agreement”)

THIS AGREEMENT is between Oxford Finance Corporation (together with its successors and assigns, if any, “Secured Party”) and Codexis, Inc. (“Debtor”). Secured Party has an office at ▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇. Debtor is a corporation organized and existing under the laws of the state of Delaware. Debtor’s mailing address and chief place of business is ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇, ▇▇ ▇▇▇▇▇.

1.	CREATION OF SECURITY INTEREST.

Debtor grants to Secured Party, its successors and assigns, a security interest in and against all property listed on any collateral schedule now or in the future annexed to or made a part of this Agreement (“Collateral Schedule”), and in and against all additions, attachments, accessories and accessions to such property, all substitutions, replacements or exchanges therefor, and all insurance and/or other proceeds thereof (all such property is individually and collectively called the “Collateral”). This security interest is given to secure the payment and performance of all debts, obligations and liabilities of any kind whatsoever of Debtor to Secured Party, now existing or arising in the future, including but not limited to the payment and performance of certain Promissory Notes from time to time identified on any Collateral Schedule (collectively “Notes” and each a “Note”), and any renewals, extensions and modifications of such debts, obligations and liabilities (such Notes, debts, obligations and liabilities are called the “Indebtedness”). Debtor acknowledges that, notwithstanding that the Note(s) may be paid in full, this Security Agreement shall continue to secure the payment and performance of all other debts, obligations and liabilities of any kind whatsoever of Debtor to Secured Party, now existing or arising in the future, and that Secured Party shall be under no obligation to release the Collateral unless and until all Indebtedness of Debtor to Secured Party has been paid and satisfied; provided, however, Secured Party, in its sole and exclusive discretion, may elect to release some of the Collateral without prejudice to Secured Party’s security interest in the remaining Collateral.

2.	REPRESENTATIONS, WARRANTIES AND COVENANTS OF DEBTOR.

Debtor represents, warrants and covenants as of the data of this Agreement and as of the date of each Collateral Schedule that:

(a)

Due Organization. Debtor’s exact legal name is as set forth in the preamble of this Agreement and Debtor is, and will remain, duly organized, existing and in good standing under the laws of the State set forth in the preamble of this Agreement, has its chief executive offices at the location specified in the preamble, and is, and will remain duly qualified and licensed in every jurisdiction wherever necessary to carry on its business and operations;

(b)

Power and Capacity to Enter Into and Perform Obligations. Debtor has adequate power and capacity to enter into, and to perform its obligations under this Agreement, each Collateral Schedule, each Note and any other documents evidencing, or given in connection with, any of the Indebtedness (all of the foregoing are called the “Debt Documents”);


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(c)

Due Authorization. This Agreement and the other Debt Documents have been duly authorized, executed and delivered by Debtor and constitute legal, valid and binding agreements enforceable in accordance with their terms, except to the extent that the enforcement of remedies may be limited under applicable bankruptcy and insolvency laws;

(d)

Approvals and Consents. No approval, consent or withholding of objections is required from any governmental authority or instrumentality with respect to the entry into, or performance by Debtor of any of the Debt Documents, except any already obtained;

(e)

No Violations or Defaults. The entry into, and performance by, Debtor of the Debt Documents will not (i) violate any of the organizational documents of Debtor or any judgment, order, law or regulation applicable to Debtor, or (ii) result in any breach of or constitute a default under any contract to which Debtor is a party, or result in the creation of any lien, claim or encumbrance on any of Debtor’s property (except for liens in favor of Secured Party) pursuant to any indenture, mortgage, deed of trust, bank loan, credit agreement, or other agreement or instrument to which Debtor is a party;

(f)

Litigation. There are no suits or proceedings pending in court or before any commission, board or other administrative agency against or affecting Debtor which could, in the aggregate, have a material adverse effect on Debtor, its business or operations, or its ability to perform its obligations under the Debt Documents, nor does Debtor have reason to believe that any such suits or proceedings are threatened;

(g)

Solvency. The fair salable value of Debtor’s assets (including goodwill minus disposition costs) exceeds the fair value of its liabilities; the Debtor is not left with unreasonably small capital after the transactions in this Agreement or any Collateral Schedule and Debtor is able to pay its debts (including trade debts) as they mature;

(h)

Financial Statements. All financial statements relating to Debtor that have been or may hereafter be delivered by Debtor to Secured Party present fairly in all material respects Debtor’s financial condition as of the date thereof and Debtor’s results of operations for the period then ended, and since the date of the most recent financial statement, there has been no material adverse change in Debtor’s financial condition;

(i)

Use of Collateral. The Collateral is not, and will not be, used by Debtor for personal, family or household purposes;


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(j)

Collateral in Good Condition and Repair. The Collateral is, and will remain, in good condition and repair and Debtor will not be negligent in its care and use;

(k)

Location of Collateral. All of the tangible Collateral is located at the locations set forth on each Collateral Schedule. Debtor shall give the Secured Party 30 days prior written notice of any relocation of any Collateral;

(l)

Ownership of Collateral. Debtor is, and will remain, the sole and lawful owner, and in possession of, the Collateral, and has the sole right and lawful authority to grant the security interest described in this Agreement;

(m)

Encumbrances. The Collateral is, and will remain, free and clear of all liens, claims and encumbrances of any kind whatsoever, except for Permitted Liens;

(n)

Intellectual Property Rights. Debtor will (i) protect, defend and maintain the validity and enforceability of the Intellectual Property and promptly advise Secured Party in writing of material infringements and (ii) not allow any Intellectual Property material to Debtor’s business, as determined by Debtor in its good faith and reasonable discretion, to be abandoned, forfeited or dedicated to the public without Secured Party’s written consent;

(o)

Taxes. All federal, state and local tax returns required to be filed by Debtor have been filed with the appropriate governmental agencies by the date due (including any extensions) and all taxes due and payable by Debtor have been timely paid. Debtor will pay when due all taxes, assessments and other liabilities except as contested in good faith and by appropriate proceedings and for which adequate reserves have been established;

(p)

No Defaults. No event or condition exists under any material agreement, instrument or document to which Debtor is a party or may be subject, or by which Debtor or any of its properties are bound, which constitutes a default or an event of default thereunder, or will, with the giving of notice, passage of time, or both, would constitute a default or event of default thereunder;

(q)

Certification of Financial Information. All reports, certificates, schedules, notices and financial information submitted by Debtor to the Secured Party pursuant to this Agreement shall be certified as true and correct by the president or chief financial officer of Debtor;

(r)

Notice of Material Adverse Change. Debtor shall give the Secured Party prompt written notice of any event, occurrence or other matter which (a) has resulted or may result in a material adverse change in its financial condition or business operations of Debtor, or (b) which would impair the ability of Debtor to perform its obligations hereunder or under any of the other financing agreements to which it is a party, or (c) which would impair the ability of Secured Party to enforce the Indebtedness or realize upon the Collateral;


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(s)

Change in Management. Debtor shall not, without giving prior written notice to Secured Party, change the persons holding the offices of Chief Executive Officer or Chief Financial Officer;

(t)

Transactions with Affiliates. Debtor shall not, without the prior written consent of Secured Party, directly or indirectly enter into or permit to exist any material transaction with any Affiliate of Debtor except for transactions that are in the ordinary course of Debtor’s business, upon fair and reasonable terms that are no less favorable to Debtor than would be obtained in an arm’s length transaction with a nonaffiliated Person;

(u)

[intentionally omitted]

(v)

Perfection Certificate. Debtor has previously delivered to the Secured Party a certificate signed by the Debtor and entitled “Perfection Certificate” (the “Perfection Certificate”). The Debtor represents and warrants to the Secured Party as follows: (a) the Debtor’s exact legal name is that indicated on the Perfection Certificate and on the signature page hereof, (b) the Debtor is an organization of the type, and is organized in the jurisdiction set forth in the Perfection Certificate, (c) the Perfection Certificate accurately sets forth the Debtor’s organizational identification number or accurately states that the Debtor has none, (d) the Perfection Certificate accurately sets forth the Debtor’s place of business or, if more than one, its chief executive office, as well as the Debtor’s mailing address, if different, (e) all other information set forth on the Perfection Certificate pertaining to the Debtor is accurate and complete, and (f) that there has been no change in any information provided in the Perfection Certificate since the date on which it was executed by the Debtor;

(w)

Primary Account and Wire Transfer Instructions. Debtor maintains its Primary Account (the “Primary Operating Account”) and the Wire Transfer Instructions for the Primary Operating Account are as follows:

▇▇▇▇▇ Fargo Bank

P.O. Box 150, ▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇.

▇▇▇▇ ▇▇▇▇, ▇▇ ▇▇▇▇▇

ABA No.: ▇▇▇▇▇▇▇▇▇

Account No.: 403-▇▇▇▇▇▇▇

Account Name: Codexis, Inc.

Debtor hereby agrees that Loans will be advanced to the account specified above and regularly scheduled payments will be automatically debited from the same account;

(x)

[intentionally omitted]

(y)

Notice of Investor Abandonment. Debtor shall give the Secured Party prompt written notice if (a) it is the clear intention of Debtor’s investors to not continue to


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fund the Debtor in the amounts and timeframe necessary to enable Debtor to satisfy the Indebtedness as it becomes due and payable or (b) there is a material impairment in the perfection or priority of the Secured Party’s security interest in the Collateral; and

(z)

Indebtedness to Maxygen. Without the prior written consent of Secured Party, which consent shall not be unreasonably withheld or delayed, Debtor shall not create, incur, assume or permit to exist any Indebtedness to Maxygen, Inc. (“Maxygen”) in excess of One Million, Two Hundred Twenty-Five Thousand Dollars ($1,225,000) in aggregate in any fiscal year, nor shall Debtor make any payments to Maxygen in any fiscal year in excess of the lower of: (i) the aggregate of the fair market value of services provided by Maxygen to Debtor during such fiscal year, or (ii) the aggregate of One Million, Two Hundred Twenty-Five Thousand Dollars ($1,225,000). Notwithstanding the foregoing, Debtor shall be permitted to pay the balance of previously incurred, existing and anticipated Indebtedness to Maxygen up to a total amount of One Million, Five Hundred Thousand Dollars ($1,500,000) for the period January 1, 2005 to December 31, 2005.

3.	COLLATERAL.

The Debtor covenants and agrees that, so long as any of the Debt Documents shall remain in effect, or unless the Secured Party shall otherwise consent in writing:

(a)

Possession of Collateral; Inspection of Collateral. Until the declaration of any default, Debtor shall remain in possession of the Collateral, except as necessary for maintenance and repair, except as specified in Section 3(c), and except that Secured Party shall have the right to possess (i) any chattel paper or instrument that constitutes a part of the Collateral, and (ii) any other Collateral in which Secured Party’s security interest may be perfected only by possession. Secured Party may inspect any of the Collateral during normal business hours after giving Debtor reasonable prior notice.

(b)

Maintenance of Collateral. Debtor shall (i) use the Collateral only in its trade or business, (ii) maintain all of the Collateral in good operating order and repair, normal wear and tear excepted, (iii) use and maintain the Collateral only in compliance with manufacturers recommendations and all applicable laws, and (iv) keep all of the Collateral free and clear of all liens, claims and encumbrances (except for Permitted Liens).

(c)

Disposition of Collateral. Secured Party does not authorize and Debtor agrees it shall not (i) part with possession of any of the Collateral (except to Secured Party or for maintenance and repair), (ii) locate any of the Collateral outside the continental United States, other than any Collateral necessary for the operation of Debtor’s subsidiary location in Germany in an aggregate value not exceeding $300,000.00, with all of any such Collateral located at Debtor’s subsidiary location in Germany to be financed by Secured Party as soft costs, and with


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ownership to all of such Collateral located at Debtor’s subsidiary location in Germany to be retained by Debtor and not passed to its subsidiary; or (iii) sell, rent, lease, mortgage, license, grant a security interest in or otherwise transfer or encumber (except for Permitted Liens) any of the Collateral.

(d)

Taxes. Debtor shall pay promptly when due all taxes, license fees, assessments and public and private charges levied or assessed on any of the Collateral, on its use, or on this Agreement or any of the other Debt Documents. At its option, Secured Party may discharge taxes, liens, security interests or other encumbrances at any time levied or placed on the Collateral and may pay for the maintenance, insurance and preservation of the Collateral and effect compliance with the terms of this Agreement or any of the other Debt Documents. Debtor agrees to reimburse Secured Party, on demand, all costs and expenses incurred by Secured Party in connection with such payment or performance and agrees that such reimbursement obligation shall constitute Indebtedness.

(e)

Books and Records. Debtor shall, at all times, keep accurate and complete records of the Collateral, and Secured Party shall have the right to inspect and make copies of all of Debtor’s books and records relating to the Collateral during normal business hours, after giving Debtor reasonable prior notice.

(f)

Third Party Possession of Collateral. Debtor agrees and acknowledges that any third person who may at any time possess all or any portion of the Collateral shall be deemed to hold, and shall hold, the Collateral as the agent of, and as pledge holder for, Secured Party. Secured Party may at any time give notice to any third person described in the preceding sentence that such third person is holding the Collateral as the agent of, and as pledge holder for, the Secured Party.

(g)

Change of Address, Name or Jurisdiction. The Debtor has not at any time within the past four (4) months either changed its name or changed the state of jurisdiction in which it is organized and existing, nor has it maintained its chief executive office or any of the Collateral at any other location, except as set forth above, and shall not do so hereafter except upon prior written notice to the Secured Party. The Secured Party shall be entitled to rely upon the foregoing unless it receives 14 days’ advance written notice of a change in the Debtor’s name, state of jurisdiction, address of the Debtor’s chief executive offices or location of the Collateral.

(h)

Fixtures. Not permit any item of the Collateral to become a fixture to real estate or an accession to other property without the prior written consent of the Secured Party, and the Collateral is now and shall at all times remain personal property except with the Secured Party’s prior written consent. If any of the Collateral is or will be attached to real estate in such a manner as to become a fixture under applicable state law and if such real estate is encumbered, the Debtor will obtain from the holder of each Lien or encumbrance a written consent and subordination to the security interest hereby granted, or a written disclaimer of any interest in the Collateral, in a form acceptable to the Secured Party.


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(i)

Distributions. Debtor shall not (i) pay any dividends or make any distributions on its equity securities; (ii) purchase, redeem, retire, defease or otherwise acquire for value any of its equity securities, other than repurchases pursuant to the terms of employee stock purchase plans, employee restricted stock agreements or similar arrangements in an aggregate amount not to exceed One Hundred Thousand Dollars ($100,000); (iii) return any capital to any holder of its equity securities as such; (iv) make any distribution of assets, equity securities, obligations or securities to any holder of its equity securities as such; or (v) set apart any sum for any such purpose; provided, however, Debtor may pay dividends payable solely in common stock.

(j)

Indebtedness Payments. Debtor shall not (i) prepay, redeem, purchase, defease or otherwise satisfy in any manner prior to the scheduled repayment thereof any Additional Indebtedness for borrowed money or lease obligations, (ii) amend, modify or otherwise change the terms of any Additional Indebtedness for borrowed money or lease obligations so as to accelerate the scheduled repayment thereof or (iii) repay any notes to officers, directors or shareholders except as expressly provided for in a duly executed subordination agreement in favor of, and approved by Secured Party.

(k)

Bridge Loans. Debtor shall not incur any indebtedness for borrowed money or lease obligations (collectively, “Bridge Loans”) from any of its officers, directors or shareholders (collectively, “Bridge Loan Lenders”) unless each of the Bridge Loan Lenders have executed and delivered subordination agreements in favor of Secured Party, in form satisfactory to Secured Party, which subordinate all of the Bridge Loans to the Indebtedness, and which permit repayment of the Bridge Loans from the proceeds of new equity investments and loans.

4.	INSURANCE.

(a)

Risk of Loss. Debtor shall at all times bear the entire risk of any loss, theft, damage to, or destruction of, any of the Collateral from any cause whatsoever.

(b)

Insurance Requirements. Debtor agrees to keep the Collateral insured against loss or damage by fire and extended coverage perils, theft, burglary, and for any or all Collateral, which are vehicles, for risk of loss by collision, and if requested by Secured Party, against such other risks as Secured Party may reasonably require. The insurance coverage shall be in an amount no less than the full replacement value of the Collateral, and deductible amounts, insurers and policies shall be acceptable to Secured Party. Debtor shall deliver to Secured Party policies or certificates of insurance evidencing such coverage. Each policy shall name Secured Party as a loss payee, shall provide for coverage to Secured Party regardless of the breach by Debtor of any warranty or representation made therein, shall not be subject to co-insurance, and shall provide that coverage may not be canceled or altered by the insurer without a good faith endeavor by insurer to provide thirty (30) days prior written notice to Secured Party. Debtor appoints Secured Party as its attorney-in-fact to make proof of loss, claim for insurance and


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adjustments with insurers, and to receive payment of and execute or endorse all documents, checks or drafts in connection with insurance payments. Secured Party shall not act as Debtor’s attorney-in-fact unless Debtor is in default. Proceeds of insurance shall be applied, at the option of Debtor if there is no default as set forth in Section 7, or at the option of Secured Party if there is a default as set forth in Section 7, to repair or replace the Collateral or to reduce any of the Indebtedness.

5.	REPORTS.

(a)

Notice of Events. Debtor shall promptly notify Secured Party of (i) any change in the name of Debtor, (ii) any change in the state of its incorporation or registration, (iii) any relocation of its chief executive offices, (iv) any of the Collateral being lost, stolen, missing, destroyed, materially damaged or worn out, (v) any lien, claim or encumbrance other than Permitted Liens attaching to or being made against any of the Collateral, or (vi) any occurrence of any default pursuant to Section 7 herein.

(b)

Financial Statements, Reports and Certificates. Debtor will deliver to Secured Party within 120 days of the close of each fiscal year of Debtor, Debtor’s complete financial statements including a balance sheet, income statement, statement of shareholders’ equity and statement of cash flows, each prepared in accordance with Generally Accepted Accounting Principles consistently applied, certified by a recognized firm of certified public accountants satisfactory to Secured Party. Debtor will deliver to Secured Party copies of Debtor’s quarterly financial statements including a balance sheet, income statement, and statement of cash flows, each of which present fairly in all material respects Debtor’s financial condition as of the date thereof, and which are certified by Debtor’s chief financial officer or president, within forty-five (45) days after the close of each of Debtor’s fiscal quarter. Debtor will deliver to Secured Party copies of all Forms 10-K and 10-Q, if any, within 30 days after the dates on which they are filed with the Securities and Exchange Commission. Debtor will deliver to Secured Party copies of Debtor’s monthly financial statements including a balance sheet and income statement, and statement of cash flows, each of which present fairly in all material respects Debtor’s financial condition as of the date thereof, and which are certified by Debtor’s chief financial officer or president, within thirty (30) days after the close of each month. With quarterly and monthly financial statements, Debtor shall also provide to Secured Party a copy of its bank statement(s) for all accounts reflected in such quarterly and monthly financial statements. Concurrently with delivery of the foregoing information, and from time to time promptly upon request of Secured Party, Debtor will deliver to Secured Party a Compliance Certificate substantially consistent with the form of the document attached hereto as Schedule A. Debtor will deliver to Secured Party promptly upon request of Secured Party, in form satisfactory to Secured Party, such other and additional information as Secured Party may reasonably request from time to time.


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6.	FURTHER ASSURANCES.

(a)

Further Assurances Regarding Security Interests. Debtor shall, upon request of Secured Party, furnish to Secured Party such further information, execute and deliver to Secured Party such documents and instruments (including, without limitation, Uniform Commercial Code financing statements) and shall do such other acts and things as Secured Party may at any time reasonably request relating to the perfection or protection of the security interest created by this Agreement or for the purpose of carrying out the intent of this Agreement. Without limiting the foregoing, Debtor shall cooperate and do all acts deemed necessary or advisable by Secured Party to continue in Secured Party a perfected first security interest in the Collateral, and shall obtain and finish to Secured Party any subordinations, releases, landlord waivers, lessor waivers, mortgagee waivers, or control agreements, and similar documents as may be from time to time requested by, and in form and substance satisfactory to, Secured Party.

(b)

Authorization To File Financing Statements. Debtor shall perform any and all acts requested by the Secured Party to establish, maintain and continue the Secured Party’s security interest and liens in the Collateral, including but not limited to, executing or authenticating financing statements and such other instruments and documents when and as reasonably requested by the Secured Party. Debtor hereby authorizes Secured Party through any of Secured Party’s employees, agents or attorneys to file any and all financing statements, including, without limitation, any original filings, continuations, transfers or amendments thereof required to perfect Secured Party’s security interest and liens in the Collateral under the UCC without authentication or execution by Debtor. Debtor hereby irrevocably authorizes the Secured Party at any time and from time to time to file in any filing office in any Uniform Commercial Code jurisdiction any initial financing statements) and amendments thereto that (a) indicate the Collateral (i) is subject to Secured Party’s security interest, regardless of whether any particular asset comprised in the Collateral falls within the scope of Article 9 of the Uniform Commercial Code of the State or such jurisdiction, or (ii) as being of an equal or lesser scope or with greater detail, and (b) provide any other information required by part 5 of Article 9 of the Uniform Commercial Code of the State or such other jurisdiction for the sufficiency or filing office acceptance of any financing statement or amendment, including (i) whether the Debtor is an organization, the type of organization and any organization identification number issued to the Debtor, and (ii) in the case of a financing statement filed as a fixture filing, a sufficient description of real property to which the Collateral relates. The Debtor agrees to furnish any such information to the Secured Party promptly upon the Secured Party’s request.

(c)

Indemnification. Debtor shall indemnify and defend the Secured Party, its successors and assigns, and their respective directors, officers and employees, from and against all claims, actions and suits (including, without limitation, related attorneys’ fees) of any kind whatsoever arising, directly or indirectly, in connection with any of the Collateral or the Debt Documents except to the extent resulting from the gross negligence or willful misconduct of the persons so indemnified.


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7.	DEFAULT AND REMEDIES.

(a)

Defaults. Debtor shall be in default under this Agreement and each of the other Debt Documents if any one of the following should occur:

(i)

Debtor breaches its obligation to pay within three (3) business days following the due date thereof any installment or other amount due or coming due under any of the Debt Documents, other than by Secured Party’s failure to process a deduction from Debtor’s Primary Operating Account pursuant to Section 2(w);

(ii)

Debtor, without the prior written consent of Secured Party, attempts to or does sell, rent, lease, license, mortgage, grant a security interest in, or otherwise transfer or encumber, or allow Liens (except for Permitted Liens) upon, any of the Collateral;

(iii)

Debtor breaches any of its insurance obligations under Section 4;

(iv)

Debtor breaches any of its obligations under Sections 2(m) or 2(y) or Sections 3(i), (j), or (k);

(v)

Debtor breaches any of its other non-payment obligations under any of the Debt Documents and fails to cure that breach within thirty (30) days after it has occurred;

(vi)

Any warranty, representation or statement made by Debtor in any of the Debt Documents or otherwise in connection with any of the Indebtedness shall be false or misleading in any material respect;

(vii)

Any of the Collateral is subjected to attachment, execution, levy, seizure or confiscation in any legal proceeding or otherwise, or if any legal or administrative proceeding is commenced against Debtor or any of the Collateral, which in the good faith judgment of Secured Party subjects any of the Collateral to a material risk of attachment, execution, levy, seizure or confiscation and no bond is posted or protective order obtained to negate such risk;

(viii)

Debtor breaches or is in default under any other agreement between Debtor and Secured Party;

(ix)

Debtor or any guarantor or other obligor for any of the Indebtedness (collectively “Guarantor”) dissolves, terminates its existence, becomes insolvent or ceases to do business as a going concern;


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(x)

If Debtor or any Guarantor is a natural person, and Debtor or any such Guarantor dies or becomes incompetent;

(xi)

A receiver is appointed for all or of any part of the property of Debtor or any Guarantor, or Debtor or any Guarantor makes any assignment for the benefit of creditors;

(xii)

Debtor or any Guarantor files a petition under any bankruptcy, insolvency or similar law, or any such petition is filed against Debtor or any Guarantor and is not dismissed within forty-five (45) days;

(xiii)

Debtor’s improper filing of an amendment or termination statement relating to a filed financing statement describing the Collateral;

(xiv)

Debtor shall merge with or consolidate into any other entity or sell all or substantially all of its assets or in any manner terminate its existence;

(xv)

If Debtor is a privately held corporation, more than 50% of Debtor’s voting capital stock, or effective control of Debtor’s voting capital stock, issued and outstanding from time to time, is not retained by the holders of such stock on the date the Agreement is executed;

(xvi)

If Debtor is a publicly held corporation, there shall be a change in the ownership of Debtor’s stock such that Debtor is no longer subject to the reporting requirements of the Securities Exchange Act of 1934 or no longer has a class of equity securities registered under Section 12 of the Securities Act of 1933;

(xvii)

Debtor defaults under any agreement to pay Additional Indebtedness or any other financing arrangement between Debtor and a third party in an amount exceeding $100,000;

(xviii)

Secured Party shall have determined in its sole and good faith judgment that (a) it is the clear intention of Debtor’s investors to not continue to fund the Debtor in the amounts and timeframe necessary to enable Debtor to satisfy the Indebtedness as it becomes due and payable or (b) there is a material impairment in the perfection or priority of the Secured Party’s security interest in the Collateral; or

(xix)

[intentionally omitted]

(xx)

Without the prior written consent of Secured Party, which consent shall not be unreasonably withheld or delayed, Debtor creates, incurs, assumes or permits to exist any Indebtedness to Maxygen, Inc. (“Maxygen”) in excess of One Million, Two Hundred Twenty-Five Thousand Dollars ($1,225,000) in aggregate in any fiscal year, or Debtor makes any payments to Maxygen in any fiscal year in excess of the lower of: (i) the aggregate of the fair market value of services provided by Maxygen to


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Debtor during such fiscal year, or (ii) the aggregate of One Million, Two Hundred Twenty-Five Thousand Dollars ($1,225,000). Notwithstanding the foregoing, Debtor shall be permitted to pay the balance of previously incurred, existing and anticipated Indebtedness to Maxygen up to a total amount of One Million, Five Hundred Thousand Dollars ($1,500,000) for the period January 1, 2005 to December 31, 2005.

(b)

Acceleration. If Debtor is in default, the Secured Party, at its option, may declare any or all of the Indebtedness to be immediately due and payable, without demand or notice to Debtor or any Guarantor (provided that if there is a default as a result of a bankruptcy or insolvency all Indebtedness shall become immediately due and payable without any action by Secured Party). The accelerated obligations and liabilities shall bear interest (both before and after any judgment) until paid in full at the Default Rate.

(c)

Rights and Remedies. Secured Party shall have all of the rights and remedies of a Secured Party under the Uniform Commercial Code, and under any other applicable law. Without limiting the foregoing, if an event of default exists, Secured Party shall have the right to (i) notify any account debtor of Debtor or any obligor on any instrument which constitutes part of the Collateral to make payment to the Secured Party, (ii) with or without legal process, enter any premises where the Collateral may be and take possession of and remove the Collateral from the premises or store it on the premises, (iii) sell the Collateral at public or private sale, in whole or in part, and have the right to bid and purchase at said sale, or (iv) lease or otherwise dispose of all or part of the Collateral, applying proceeds from such disposition to the obligations then in default. If requested by Secured Party, Debtor shall promptly assemble the Collateral and make it available to Secured Party at a place to be designated by Secured Party, which is reasonably convenient to both parties. Secured Party may also render any or all of the Collateral unusable at the Debtor’s premises and may dispose of such Collateral on such premises without liability for rent or costs. Any notice that Secured Party is required to give to Debtor under the Uniform Commercial Code of the time and place of any public sale or the time after which any private sale or other intended disposition of the Collateral is to be made shall be deemed to constitute reasonable notice if such notice is given to the last known address of Debtor at least five (5) days prior to such action. Upon the occurrence and during the continuation of a default, Debtor hereby appoints Secured Party as Debtor’s attorney-in-fact, with full authority in Debtor’s place and stead and in Debtor’s name or otherwise, from time to time in Secured Party’s sole and arbitrary discretion, to take any action and to execute any instrument which Secured Party may deem necessary or advisable to accomplish the purpose of this Agreement. If an event of Default exists and is continuing, Secured Party is granted a non-exclusive royalty free license to use Debtor’s Intellectual Property in connection with Secured Party’s disposition of Collateral in the exercise of Secured Party’s rights or remedies hereunder.


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Master Security Agreement No. 5081102

(d)

Application of Proceeds. The proceeds and/or avails of the Collateral, or any part thereof, and the proceeds and the avails of any remedy hereunder (as well as any other amounts of any kind held by Secured Party, at the time of or received by Secured Party after the occurrence of a default hereunder) shall be paid to and applied as follows:

First, to the payment of out-of-pocket costs and expenses, including all amounts expended to preserve the value of the Collateral, all costs of repossession, storage, and disposition including without limitation attorneys’, appraisers’, and auctioneers’ fees, of foreclosure or suit, if any, and of such sale and the exercise of any other rights or remedies, and of all proper fees, expenses, liability and advances, including reasonable legal expenses and attorneys’ fees, incurred or made hereunder by Secured Party, including without limitation, Secured Party’s Expenses;

Second, to the payment to Secured Party of the amount then owing or unpaid on the Loans for scheduled payments, any accrued and unpaid interest, and all other Indebtedness (provided, however, if such proceeds shall be insufficient to pay in full the whole amount so due, owing or unpaid upon the Loans, then to the unpaid interest thereon, then to the outstanding principal amount of the Loans, and then to the payment of other amounts then payable to Secured Party under any of the Debt Documents or otherwise); and

Third, to the payment of the surplus, if any, to Debtor, its successors and assigns, or to whomsoever may be lawfully entitled to receive the same.

(e)

Fees and Costs. Debtor agrees to pay all reasonable attorneys’ fees and other costs incurred by Secured Party in connection with the enforcement, assertion, defense or preservation of Secured Party’s rights and remedies under this Agreement, or if prohibited by law, such lesser sum as may be permitted. Debtor further agrees that such fees and costs shall constitute Indebtedness.

(f)

Remedies Cumulative. Secured Party’s rights and remedies under this Agreement or otherwise arising are cumulative and may be exercised singularly or concurrently. Neither the failure nor any delay on the part of the Secured Party to exercise any right, power or privilege under this Agreement shall operate as a waiver, nor shall any single or partial exercise of any right, power or privilege preclude any other or further exercise of that or any other right, power or privilege. SECURED PARTY SHALL NOT BE DEEMED TO HAVE WAIVED ANY OF ITS RIGHTS UNDER THIS AGREEMENT OR UNDER ANY OTHER AGREEMENT, INSTRUMENT OR PAPER SIGNED BY DEBTOR UNLESS SUCH WAIVER IS EXPRESSED IN WRITING AND SIGNED BY SECURED PARTY. A waiver on any one occasion shall not be construed as a bar to or waiver of any right or remedy on any future occasion.


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(g)

WAIVER OF JURY TRIAL. DEBTOR AND SECURED PARTY UNCONDITIONALLY WAIVE THEIR RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT, ANY OF THE OTHER DEBT DOCUMENTS, ANY OF THE INDEBTEDNESS SECURED HEREBY, ANY DEALINGS BETWEEN DEBTOR AND SECURED PARTY RELATING TO THE SUBJECT MATTER OF THIS TRANSACTION OR ANY RELATED TRANSACTIONS, AND/OR THE RELATIONSHIP THAT IS BEING ESTABLISHED BETWEEN DEBTOR AND SECURED PARTY. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE FILED IN ANY COURT. THIS WAIVER IS IRREVOCABLE. THIS WAIVER MAY NOT BE MODIFIED EITHER ORALLY OR IN WRITING. THE WAIVER ALSO SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT, ANY OTHER DEBT DOCUMENTS, OR TO ANY OTHER DOCUMENTS OR AGREEMENTS RELATING TO THIS TRANSACTION OR ANY RELATED TRANSACTION. THIS AGREEMENT MAY BE FILED AS A WRITTEN CONSENT TO A TRIAL BY THE COURT.

8.	MISCELLANEOUS.

(a)

Assignment. This Agreement and/or any of the other Debt Documents may be assigned, in whole or in part, by Secured Party without notice to Debtor, and Debtor agrees not to assert against any such assignee, or assignee’s assigns, any defense, set-off, recoupment claim or counterclaim which Debtor has or may at any time have against Secured Party for any reason whatsoever. Debtor agrees that if Debtor receives written notice of an assignment from Secured Party, Debtor will pay all amounts payable under any assigned Debt Documents to such assignee or as instructed by Secured Party. Debtor also agrees to confirm in writing receipt of the notice of assignment as may be reasonably requested by Secured Party or assignee.

(b)

Notices. All notices to be given in connection with this Agreement shall be in writing, shall be addressed to the parties at their respective addresses set forth in this Agreement (unless and until a different address may be specified in a written notice to the other party), and shall be deemed given (i) on the date of receipt if delivered in hand or by facsimile transmission, (ii) on the next business day after being sent by express mail, and (iii) on the fourth business day after being sent by regular, registered or certified mail. As used herein, the term “business day” shall mean and include any day other than Saturdays, Sundays, or other days on which commercial banks in California or Virginia are required or authorized to be closed.

(c)

Correction of Errors. Secured Party may correct patent errors and fill in all blanks in this Agreement, any Collateral Schedule or in any Note consistent with the agreement of the parties.


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(d)

Time is of the Essence. Time is of the essence of this Agreement. This Agreement shall be binding, jointly and severally, upon all parties described as the “Debtor” and their respective heirs, executors, representatives, successors and assigns, and shall inure to the benefit of Secured Party, its successors and assigns.

(e)

Entire Agreement. This Agreement and the Debt Documents constitute the entire agreement between the parties with respect to the subject matter of this Agreement and supersede all prior understandings (whether written, verbal or implied) with respect to such subject matter. NEITHER THIS AGREEMENT NOR ANY OF THE DEBT DOCUMENTS SHALL BE CHANGED OR TERMINATED ORALLY OR BY COURSE OF CONDUCT, BUT ONLY BY A WRITING SIGNED BY BOTH PARTIES. Section headings contained in this Agreement have been included for convenience only, and shall not affect the construction or interpretation of this Agreement. This Agreement is the result of negotiations between and has been reviewed by each of Debtor and Secured Party executing this Agreement as of the date hereof and their respective counsel; accordingly, this Agreement shall be deemed to be the product of the parties hereto, and no ambiguity shall be construed in favor of or against Debtor or Secured Party.

(f)

Termination of Agreement. This Agreement shall continue in full force and effect until all of the Indebtedness has been indefeasibly paid in full to Secured Party or its assignee; provided, that Debtor’s indemnity obligations set forth in Section 6(c) shall survive until all applicable statute of limitations periods with respect to actions that may be brought against Secured Party have run. The surrender, upon payment or otherwise, of any Note or any of the other documents evidencing any of the Indebtedness shall not affect the right of Secured Party to retain the Collateral for such other Indebtedness as may then exist or as it may be reasonably contemplated will exist in the future. This Agreement shall automatically be reinstated if Secured Party is ever required to return or restore the payment of all or any portion of the Indebtedness (all as though such payment had never been made). Secured Party shall, at Debtor’s sole cost and expense, execute such further documents and take such further actions as may be reasonably necessary to effect the release of its security interests contemplated by this paragraph, including duly executing and delivering termination statements for filing in all relevant jurisdictions under the Code.

(g)

CHOICE OF LAW. DEBTOR AGREES THAT SECURED PARTY AND/OR ITS SUCCESSORS AND ASSIGNS SHALL HAVE THE OPTION BY WHICH STATE LAWS THIS AGREEMENT SHALL BE GOVERNED AND CONSTRUED: (A) THE LAWS OF THE COMMONWEALTH OF VIRGINIA; OR (B) IF COLLATERAL HAS BEEN PLEDGED TO SECURE THE LIABILITIES, THEN BY THE LAWS OF THE STATE OR STATES WHERE THE COLLATERAL IS LOCATED, AT SECURED PARTY’S OPTION. THIS CHOICE OF STATE LAWS IS EXCLUSIVE TO THE SECURED PARTY. DEBTOR SHALL NOT HAVE ANY OPTION TO CHOOSE THE LAWS BY WHICH THIS AGREEMENT SHALL BE GOVERNED. DEBTOR


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Master Security Agreement No. 5081102

ACKNOWLEDGES THAT THIS AGREEMENT IS BEING SIGNED BY THE SECURED PARTY IN PARTIAL CONSIDERATION OF SECURED PARTY’S RIGHT TO ENFORCE IN THE JURISDICTION STATED ABOVE. DEBTOR CONSENTS TO JURISDICTION IN THE COMMONWEALTH OF VIRGINIA OR THE STATE IN WHICH ANY COLLATERAL IS LOCATED AND VENUE IN ANY FEDERAL OR STATE COURT IN THE COMMONWEALTH OF VIRGINIA OR THE STATE IN WHICH COLLATERAL IS LOCATED FOR SUCH PURPOSES AND WAIVES ANY AND ALL RIGHTS TO CONTEST SAID JURISDICTION AND VENUE AND ANY OBJECTION THAT SAID COUNTY IS NOT CONVENIENT. DEBTOR WAIVES ANY RIGHTS TO COMMENCE ANY ACTION AGAINST SECURED PARTY IN ANY JURISDICTION EXCEPT VIRGINIA, OR IF SECURED PARTY CHOOSES TO LITIGATE IN A STATE WHERE COLLATERAL IS LOCATED THEN IN SUCH COUNTY AND STATE.

(h)

Power of Attorney. To facilitate direct collection, the Debtor hereby appoints the Secured Party and any officer or employee of the Secured Party, as the Secured Party may from time to time designate, as attorney-in-fact for the Debtor to (a) endorse the name of the Debtor in favor of the Secured Party upon any and all checks, drafts, money orders, notes, acceptances or other evidences of payment or Collateral that may come into the Secured Party’s possession; (b) do all acts and things necessary to carry out this Agreement and the transactions contemplated hereby, including signing the name of the Debtor on any instruments required by law in connection with the transactions contemplated hereby and on financing statements as permitted by the Virginia Uniform Commercial Code. The Debtor hereby ratifies and approves all acts of such attorneys-in-fact, and neither the Secured Party nor any other such attorney-in-fact shall be liable for any acts of commission or omission, or for any error of judgment or mistake of fact or law of any such attorney-in-fact. This power, being coupled with an interest, is irrevocable so long as the Loan remains unsatisfied, or any Debt Document remains effective, as solely determined by the Secured Party. Secured Party agrees to exercise this power of attorney only during the existence of an event of default.

(i)

Loss, Depreciation or Other Damage. The Secured Party shall not be liable for or prejudiced by any loss, depreciation or other damage to Collateral unless caused by the Secured Party’s willful and malicious act, and the Secured Party shall have no duty to take any action to preserve or collect any Collateral.

(j)

Demand; Protest. Debtor waives demand, protest, notice of protest, notice of default or dishonor, notice of payment and nonpayment, notice of any default, nonpayment at maturity, release, compromise, settlement, extension, or renewal of accounts, documents, instruments, chattel paper, and guarantees at any time held by Secured Party on which Debtor may in any way be liable.


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Master Security Agreement No. 5081102

9.	DEFINITIONS.

As used herein, the following terms, when initial capital letters are used, shall have the respective meanings set forth below. In addition, all terms defined in the Code shall have the meanings given therein unless otherwise defined herein.

Defined Terms. As used in this Agreement, the following terms shall have the following meanings, unless the context otherwise requires:

“Additional Indebtedness” means, with respect to Debtor or any of its subsidiaries, the aggregate amount of, without duplication, (a) all obligations of such Person for borrowed money, (b) all obligations of such Person evidenced by bonds, debentures, notes or other similar instruments, (c) all obligations of such Person to pay the deferred purchase price of property or services (excluding trade payables aged less than one hundred eighty (180) days), (d) all capital lease obligations of such Person, (e) all obligations or liabilities of others secured by a Lien on any asset of such Person, whether or not such obligation or liability is assumed, (f) all obligations or liabilities of others guaranteed by such Person, and (g) any other obligations or liabilities which are required by GAAP to be shown as debt on the balance sheet of such Person. A listing of Additional Indebtedness existing on the date hereof is set forth in Schedule B. Unless otherwise indicated, the term “Additional Indebtedness” shall include all Indebtedness of Debtor and all of its subsidiaries.

“Affiliate” of a Person is a Person that owns or controls directly or indirectly the Person, any Person that controls or is controlled by or is under common control with the Person, and each of that Person’s senior executive officers, directors, partners and, for any Person that is a limited liability company, that Person’s managers and members.

“Code” means the Virginia Uniform Commercial Code (including revised Article 9 thereof).

“Collateral” has the meaning given such capitalized term in Section 1.

“Collateral Schedule” has the meaning given such capitalized term in Section 1.

“Debt Documents” has the meaning given such capitalized term in Section 2(b).

“Default Rate” is the lower of thirteen percent (13%) per annum or the maximum rate not prohibited by applicable law.

“Indebtedness” has the meaning given such capitalized term in Section 1.

“Intellectual Property” shall mean (a) all of the Debtor’s right, title and interest, whether now owned or existing or hereafter acquired or arising, in and to all domestic and foreign copyrights, copyright registrations and copyright applications, whether or not registered or filed with any governmental authority, together with (i) all renewals thereof, (ii) all present and future rights of the Debtor under all present and future license agreements relating thereto, whether the Debtor is licensee or licensor thereunder, (iii) all income,


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Master Security Agreement No. 5081102

royalties, damages and payments now or hereafter due and/or payable to the Debtor thereunder or with respect thereto, including, without limitation, damages and payments for past, present or future infringements thereof, (iv) all of the Debtor’s present and future claims, causes of action and rights to ▇▇▇ for past, present or future infringements thereof, and (v) all rights corresponding thereto throughout the world (collectively “Copyright Rights”); (b) all of the Debtor’s right, title and interest, whether now owned or existing or hereafter acquired or arising, in and to all United States and foreign patents, and pending and abandoned United States and foreign patent applications, including, without limitation, the inventions and improvements described or claimed therein, together with(i) any reissues, divisions, continuations, certificates of re-examination, extensions and continuations-in-part thereof, (ii) all present and future rights of the Debtor under all present and future license agreements relating thereto, whether the Debtor is licensee or licensor thereunder, (iii) all income, royalties, damages and payments now or hereafter due and/or payable to the Debtor thereunder or with respect thereto, including, without limitation, damages and payments for past, present or future infringements thereof, (iv) all of the Debtor’s present and future claims, causes of action and rights to ▇▇▇ for past, present or future infringements thereof, and (v) all rights corresponding thereto throughout the world (collectively “Patent Rights”); (c) all of the Debtor’s right, title and interest, whether now owned or existing or hereafter acquired or arising, in and to all domestic and foreign trademarks, trademark registrations, trademark applications and trade names, whether or not registered or filed with any governmental authority, together with (i) all renewals thereof, (ii) all present and future rights of the Debtor under all present and future license agreements relating thereto, whether the Debtor is licensee or licensor thereunder, (iii) all income, royalties, damages and payments now or hereafter due and/or payable to the Debtor thereunder or with respect thereto, including, without limitation, damages and payments for past, present or future infringements thereof, (iv) all of the Debtor’s present and future claims, causes of action and rights to ▇▇▇ for past, present or future infringements thereof, and (v) all rights corresponding thereto throughout the world (collectively “Trademark Rights”); (d) all present and future licenses and license agreements of the Debtor, and all rights of the Debtor under or in connection therewith, whether the Debtor is licensee or licensor thereunder, including, without limitation, any present or future franchise agreements under which the Debtor is franchisee or franchisor, together with (i) all renewals thereof, (ii) all income, royalties, damages and payments now or hereafter due and/or payable to the Debtor thereunder or with respect thereto, including, without limitation, damages and payments for past, present or future infringements thereof, (iii) all claims, causes of action and rights to ▇▇▇ for past, present or future infringements thereof, and (iv) all rights corresponding thereto throughout the world (collectively “License Rights”); (e) all present and future trade secrets of the Debtor; and (f) all other present and future intellectual property of the Debtor.]

“Lien(s)” shall mean any voluntary or involuntary mortgage, pledge, deed of trust, assignment, security interest, encumbrance, hypothecation, lien, or charge of any kind (including any conditional sale or other title retention agreement, any financing lease having substantially the same economic effect as any of the foregoing, and the filing of, or agreement to give, any financing statement under the Uniform Commercial Code or comparable law of any jurisdiction).


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Master Security Agreement No. 5081102

“Loan” means an advance of credit by Secured Party to Debtor.

“Note” has the meaning given such capitalized term in Section 1.

“Permitted Liens” means: (i) liens in favor of Secured Party, (ii) liens for taxes not yet due or for taxes being contested in good faith and which do not involve, in the judgment of Secured Party, any risk of the sale, forfeiture or loss of any of the Collateral, and (iii) inchoate materialmen’s, mechanic’s, repairmen’s and similar liens arising by operation of law in the normal course of business for amounts which are not delinquent.

“Person” is any individual, sole proprietorship, partnership, limited liability company, joint venture, company association, trust, unincorporated organization, association, corporation, institution, public benefit corporation, firm, joint stock company, estate, entity or government agency.

“Primary Operating Account” has the meaning given such capitalized term in Section 2(w).

“Secured Party’s Expenses” means all reasonable costs or expenses (including reasonable attorneys’ fees and expenses) incurred in connection with the preparation, negotiation, documentation, administration and funding of the Debt Documents; and Secured Party’s reasonable attorneys’ fees, costs and expenses incurred in amending. modifying, enforcing or defending the Debt Documents (including fees and expenses of appeal or review), including the exercise of any rights or remedies afforded hereunder or under applicable law, whether or not suit is brought, whether before or after bankruptcy or insolvency, including without limitation all fees and costs incurred by Secured Party in connection with Secured Party’s enforcement of its rights in a bankruptcy or insolvency proceeding filed by or against Debtor or its property.

“Subordinated Indebtedness” means Additional Indebtedness subordinated to the Indebtedness of Debtor to Secured Party on terms and conditions acceptable to Secured Party in its sole discretion.

IN WITNESS WHEREOF, Debtor and Secured Party, intending to be legally bound hereby, have duly executed this Agreement in one or more counterparts, each of which shall be deemed to be an original, as of the day and year first aforesaid.


SECURED PARTY:		DEBTOR:

Oxford Finance Corporation		Codexis, Inc.

By:	/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇	By:	/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇
Name:	▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇	Name:	▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇
Title:	Chief Financial Officer	Title:	Senior Vice President


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Master Security Agreement No. 5081102

SCHEDULE A

FORM OF

COMPLIANCE CERTIFICATE


Oxford		Finance		Corporation
▇▇▇	▇.		▇▇▇▇▇▇▇	▇▇▇▇▇▇
▇▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇


Re:		Codexis, Inc.

Gentlemen:

Reference is made to the Master Security Agreement dated as of October 25, 2005, (as the same have been and may be amended from time to time in writing, the “Loan Agreement”, the capitalized terms used herein as defined therein), between Oxford Finance Corporation and Codexis, Inc. (the “Company”).

The undersigned authorized representative of the Company hereby certifies that in accordance with the terms and conditions of the Loan Agreement, the Company is in complete compliance for the financial reporting period ending with all required financial reporting under the Loan Agreement, except as noted below. Attached herewith are the required documents supporting the foregoing certification. The undersigned further certifies that the accompanying financial statements present fairly in all material respects the Debtor’s financial condition as of the date thereof, that annual audited financial statements have been prepared in accordance with Generally Accepted Accounting Principles, and all such financial statements are consistent from one period to the next, except as explained below.

Indicate compliance status by circling Yes/No under “Complies”


REPORTING REQUIREMENT	REQUIRED	COMPLIES
Interim Financial Statements	Quarterly within 45 days	YES / NO

Monthly Financial Statements	Monthly within 30 days

Audited Financial Statements	FYE within 120 days

Date of most recent Board-approved budget/plan
Summary submitted with Borrowing Request		YES / NO

Any material change in budget/plan since prior Borrowing Request		YES / NO


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Master Security Agreement No. 5081102

EXPLANATIONS


Very truly yours,

CODEXIS, INC.

By:
Name:
Title:^*

^*	Must be executed by Debtor’s Chief Financial Officer or President.


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Master Security Agreement No. 5081102

SCHEDULE B

DEBTOR ADDITIONAL INDEBTEDNESS AS OF SEPTEMBER 30, 2005


Current Liabilities
Accrued vacation		438,019
Other accruals		1,125,685
Equipment loan		993,343
Lease Incentive		62,531
Deferred Revenue		3,618,030

Subtotal		6,237,608
Long Term Liabilities
Equipment Loan		2,705,561
Lease Incentive		270,966
Deferred Revenue		1,956,092

Subtotal		4,932,619

Total Liabilities		11,170,227


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COLLATERAL MIX RIDER

MASTER SECURITY AGREEMENT NO. 5081102

DATED OCTOBER 25, 2005

BETWEEN

OXFORD FINANCE CORPORATION (the “SECURED PARTY”)

AND

CODEXIS, INC. (the “DEBTOR”)

Debtor shall cause the composition and mix of Collateral to conform to and meet the following concentration requirements (hereinafter “Concentration Requirement”) for the class of Collateral (hereinafter “Collateral Class”) as identified and set forth below. Debtor herein represents and warrants that it shall maintain such Collateral Class and its respective Concentration Requirement at all times from and after December 31, 2006. If on such date the Concentration Requirement is not in compliance (a “Concentration Variance”), Debtor will do one of the following (a “Concentration Correction”):

Grant to Secured Party a security interest in additional equipment satisfactory to Secured Party, not previously subject to Secured Party’s security interest (collectively, the “Additional Equipment”), in sufficent type and amount so that the Concentration Requirement set forth below is met and the Concentration Variance is eliminated. The Additional Equipment shall be subject to all of the terms and conditions of the Master Security Agreement, including without limitation, Debtor’s representations, warranties, and covenants, which shall be deemed remade by Debtor upon its grant of a security interest in the Additional Equipment.

Pay Secured Party cash in an amount equal to the Concentration Variance to hold as cash collateral until the Note is fully repaid. Debtor hereby grants Secured Party a security interest in such cash collateral and all proceeds and products thereof. Debtor agrees that such cash collateral held by Secured Party: (a) shall not bear interest, (b) may be commingled with other funds of Secured Party, and (c) may be applied by Secured Party to amounts owing by Debtor upon the occurrence and during the continuance of any Event of Default under the Master Security Agreement or the Note(s) thereunder.

The failure of Debtor to do a Concentration Correction by December 31, 2006, shall constitute a Default under the Master Security Agreement and the Note(s) thereunder.


Collateral Class		Concentration Requirement
New Laboratory Equipment		Minimum of 60%
New Computer and Furniture		Maximum of 10%
Soft Costs		Maximum of 30% of the outstanding principal amount as initially represented by the Promissory Notes from time to time


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Dated as of October 25, 2005


OXFORD FINANCE CORPORATION		CODEXIS, INC.

By:	/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇	By:	/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇
Name:	▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇	Name:	▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇
Title:	Chief Financial Officer	Title:	Senior Vice President


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SECRETARY’S CERTIFICATE

Codexis, Inc.

To:

Oxford Finance Corporation

▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇

▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇ ▇▇▇▇▇

The undersigned hereby certifies as follows:

(i)	He is the duly appointed Secretary of Codexis, Inc., a Delaware corporation (the “Corporation”).

(ii) Each of the officers designated below is a duly appointed officer of the Corporation, and the signature appearing opposite his name below is his genuine signature:


NAME	OFFICE	SIGNATURE
▇▇▇▇ ▇▇▇▇	President and Chief Executive Officer	/s/ ▇▇▇▇ ▇▇▇▇
▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇	Senior Vice President	/s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇

(iii) Schedule A attached hereto is a true and correct copy of the Corporation’s Fourth Amended and Restated Certificate of Incorporation, as filed with the Delaware Secretary of State on July 22, 2004, as amended on January 19, 2005, July 26, 2005 and October 20, 2005 (the “Certificate”). The Certificate has not in any way been amended, annulled, rescinded, repealed, revoked or supplemented, and remains in full force and effect as of the date hereof.

(iv) Schedule B attached hereto is a true and correct copy of the Corporation’s bylaws as presently in effect.

(v) Schedule C attached hereto is a true and correct copy of resolutions adopted by the board of directors of the Corporation on August 11, 2005 related to Oxford Finance Corporation (the “Resolutions”). Said Resolutions have not been revoked, modified, rescinded, or amended and are in full force and effect.

[Signature Page Follows]


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SECRETARY’S CERTIFICATE

IN WITNESS WHEREOF, I have hereunto set my hand, this 25th day of October, 2005.

/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇

▇▇▇▇ ▇▇▇▇▇▇▇▇▇

Secretary

Codexis, Inc.

ATTEST:

The undersigned does hereby certify that he is President and Chief Executive Officer of the Corporation and does hereby certify that ▇▇▇▇ ▇▇▇▇▇▇▇▇▇ was, at the time he executed the foregoing Certificate, a duly elected, qualified and acting Secretary of the Corporation, and he was duly authorized and empowered to do so, and the signature thereon is genuine.

/s/ ▇▇▇▇ ▇▇▇▇

Signature of Corporate Officer

Attesting to Secretary Signature


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MASTER SECURITY AGREEMENT No. 5081102 Dated as of October 25, 2005 (“Agreement”)

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