THIRD LOAN MODIFICATION AGREEMENT (Exim)

“    “Facility Amount” is Fourteen Million Six Hundred Sixty Six Thousand Six Hundred Sixty Six and 66/100 Dollars ($14,666,666.66).”

“    “Facility Amount” is Eleven Million Seven Hundred Thirty Three Thousand Three Hundred Thirty Three and 33/100 Dollars ($11,733,333.33).”

(a)    Spire Corporation hereby ratifies, confirms and reaffirms, all and singular, the terms and disclosures contained in a certain Perfection Certificate dated as of June 22, 2009, delivered by Spire Corporation to Bank, and acknowledges, confirms and agrees the disclosures and information Spire Corporation provided to Bank in such Perfection Certificate have not changed, as of the date hereof.

(b)    Spire Solar hereby ratifies, confirms and reaffirms, all and singular, the terms and disclosures contained in a certain Perfection Certificate dated as of June 22, 2009, delivered by Spire Solar to Bank, and acknowledges, confirms and agrees the disclosures and information Spire Solar provided to Bank in such Perfection Certificate have not changed, as of the date hereof.

(c)    Spire Biomedical hereby ratifies, confirms and reaffirms, all and singular, the terms and disclosures contained in a certain Perfection Certificate dated as of June 22, 2009, delivered by Spire Biomedical to Bank, and acknowledges, confirms and agrees the disclosures and information Spire Biomedical provided to Bank in such Perfection Certificate have not changed, as of the date hereof.

I, an authorized officer of SPIRE CORPORATION, SPIRE SOLAR, INC., SPIRE BIOMEDICAL, INC. and SPIRE SEMICONDUCTOR, LLC (jointly and severally, individually and collectively, “Borrower”) certify under the Amended and Restated Export-Import Bank Loan and Security Agreement (as amended, the “Exim Agreement”) between Borrower and Silicon Valley Bank (“Bank”) as follows for the period ending _____________________________ (all capitalized terms used herein shall have the meaning set forth in the Exim Agreement):

Each Financed Receivable is an Eligible Foreign Account;

Borrower is the owner with legal right to sell, transfer, assign and encumber such Financed Receivable;

The correct amount is on the Advance Request and Invoice Transmittal and is not disputed;

Payment is not contingent on any obligation or contract and Borrower has fulfilled all its obligations as of the Advance Request and Invoice Transmittal date;

Each Financed Receivable is based on an actual sale and delivery of goods and/or services rendered, is due to Borrower, is not past due or in default, has not been previously sold, assigned, transferred, or pledged and is free of any liens, security interests and encumbrances other than Permitted Liens;

There are no defenses, offsets, counterclaims or agreements for which the Account Debtor may claim any deduction or discount;

It reasonably believes no Account Debtor is insolvent or subject to any Insolvency Proceedings;

It has not filed or had filed against it Insolvency Proceedings and does not anticipate any filing;

Bank has the right to endorse and/or require Borrower to endorse all payments received on Financed Receivables and all proceeds of Collateral;

To the best of Borrower's knowledge, all signatures and endorsements on all documents, instruments, and agreements relating to each Financed Receivable are genuine, and all such documents, instruments and agreements are legally enforceable in accordance with their terms.

Borrower and each Subsidiary is duly existing and in good standing in its state of formation and qualified and licensed to do business in, and in good standing in, any state in which the conduct of its business or its ownership of property requires that it be

qualified except where the failure to do so could not reasonably be expected to cause a Material Adverse Change. The execution, delivery and performance of the Loan Documents have been duly authorized, and do not conflict with Borrower's organizational documents, nor constitute an event of default under any material agreement by which Borrower is bound. Borrower is not in default under any agreement to which or by which it is bound in which the default could reasonably be expected to cause a Material Adverse Change.

Borrower has good title to the Collateral, free of Liens except Permitted Liens. All inventory is in all material respects of good and marketable quality, free from material defects.

The undersigned represents and warrants that as of the date hereof the foregoing is true, complete and correct, that the information reflected in this Compliance Certificate complies with the representations and warranties set forth in the Exim Agreement and the Borrower Agreement each dated November 16, 2009, as may be amended from time to time, as if all representations and warranties were made as of the date hereof, and that Borrower is, and shall remain, in full compliance with its agreements, covenants, and obligations under such agreements. Such representations and warranties include, without limitation, the following: Borrower is using disbursements only for the purpose of enabling Borrower to finance the cost of manufacturing, purchasing or selling items intended for export. Borrower is not using disbursements for the purpose of: (a) servicing any of Borrower's unrelated pre-existing or future indebtedness; (b) acquiring fixed assets or capital goods for the use of Borrower's business; (c) acquiring, equipping, or renting commercial space outside the United States; or (d) paying salaries of non-U.S. citizens or non-U.S. permanent residents who are located in the offices of the United States. Additionally, disbursements are not being used to finance the manufacture, purchase or sale of all of the following: (a) Items to be sold to a buyer located in a country in which the Export Import Bank of the United States is legally prohibited from doing business; (b) that part of the cost of the items which is not U.S. Content unless such part is not greater than fifty percent (50.0%) of the cost of the items and is incorporated into the items in the United States; (c) defense articles or defense services or items directly or indirectly destined for use by military organizations designed primarily for military use (regardless of the nature or actual use of the items); or (d) any items to be used in the construction, alteration, operation or maintenance of nuclear power, enrichment, reprocessing, research or heavy water production facilities.

All other representations and warranties in the Exim Agreement are true and correct in all material respects on this date, and Borrower represents that there is no existing Event of Default.

Required        Actual        Eligible

Liquidity            >$3,750,000         $_____        Yes No

Sincerely,

SPIRE CORPORATION

SPIRE SOLAR, INC.

SPIRE BIOMEDICAL, INC.

SPIRE SEMICONDUCTOR, LLC

________________________

Signature

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Title

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Date