Document:

EXHIBIT 10(h)

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                               PURCHASE AGREEMENT

                                  by and among

                                SPIRE CORPORATION

                                       and

                             STRATOS LIGHTWAVE, INC.
                          BANDWIDTH SEMICONDUCTOR, LLC

                            Dated as of May 23, 2003

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                                TABLE OF CONTENTS

Section                                                                     Page
-------                                                                     ----

1.  PURCHASE AND SALE OF OWNERSHIP INTEREST...................................1

      1.1.  Ownership Interest................................................1
      1.2.  Excluded Assets...................................................1
      1.3.  Documentation.....................................................2
      1.4.  Closing; Closing Date.............................................2
      1.5.  Effective Time....................................................2

2.  PURCHASE PRICE............................................................2

      2.1.  Purchase Price....................................................2

3.  REPRESENTATIONS AND WARRANTIES OF SELLER AND COMPANY......................2

      3.1.  Organization, Power and Qualification.............................2
      3.2.  Subsidiaries......................................................3
      3.3.  Authorization.....................................................3
      3.4.  No Violation; Consents............................................3
      3.5.  Financial Statements..............................................3
      3.6.  Liabilities and Obligations.......................................4
      3.7.  Absence of Certain Changes........................................4
      3.8.  Tax Returns and Reports...........................................4
      3.9.  Title to and Condition of Assets..................................5
      3.10.  Real Estate and Leases...........................................5
      3.11.  Contracts........................................................6
      3.12.  Inventory........................................................6
      3.13.  Litigation.......................................................6
      3.14.  Employment and Labor Matters.....................................6
      3.15.  Employee Benefits................................................7
      3.16.  Intellectual Property............................................8
      3.17.  Legal Compliance.................................................9
      3.18.  Transactions with Affiliates....................................10
      3.19.  Environmental Matters...........................................10
      3.20.  Product Liability/Warranties....................................11
      3.21.  Principal Customers and Suppliers...............................11

4.  REPRESENTATIONS AND WARRANTIES OF BUYER..................................11

      4.1.  Organization.....................................................11
      4.2.  Authorization....................................................12
      4.3.  No Violation; Consents...........................................12

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5.  COVENANTS OF SELLER AND COMPANY..........................................12

      5.1.  Conduct of Business Prior to Closing.............................12
      5.2.  Investigation....................................................13
      5.3.  Regulatory Authorizations; Notices and Consents..................13
      5.4.  Notice of Developments...........................................13
      5.5.  Schedules........................................................14
      5.6.  No Solicitation or Negotiation...................................14
      5.7.  Closing Conditions...............................................14

6.  CONDITIONS TO CLOSING....................................................14

      6.1.  Conditions to Buyer's Obligations................................14
             6.1.1  Representations and Warranties...........................15
             6.1.2  Certificate..............................................15
             6.1.3  Opinion..................................................15
             6.1.4  Consents and Approvals...................................15
             6.1.5  No Material Adverse Change...............................15
             6.1.6  No Proceeding............................................15
             6.1.7  Lien Releases, If Any....................................15
             6.1.8  Real Estate..............................................15
             6.1.9  Closing Documents........................................15
      6.2.  Conditions to Obligations of Seller and Company..................16
             6.2.1  Representations and Warranties...........................16
             6.2.2  Certificate..............................................16
             6.2.3  .........................................................16
             6.2.4  Consents and Approvals...................................16
             6.2.5  No Proceeding............................................17
             6.2.6  Release of Bedford Lease.................................17
             6.2.7  Intellectual Property License............................17
             6.2.8  Supply Agreement.........................................17
             6.2.9  Real Estate..............................................17
             6.2.10  Letter of Credit........................................17
             6.2.11  Closing Documents.......................................17

7.  TERMINATION..............................................................17

      7.1.  Termination......................................................17
      7.2.  Effect of Termination............................................18
      7.3.  Fees and Expenses; Damages.......................................18

8.  INDEMNIFICATION..........................................................18

      8.1.  Indemnification of Buyer.........................................18
      8.2.  Indemnification of Seller........................................19
      8.3.  Method of Asserting Claims.......................................20

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      8.4.  Nature and Survival of Representations...........................20
      8.5.  Limitation on Aggregate Claims...................................21

9.  OTHER AGREEMENTS.........................................................21

      9.1.  GE Lease.........................................................21
      9.2.  Settlement Agreement.............................................21
      9.3.  Employees........................................................21
      9.4.  Releases.........................................................22
      9.5.  Acknowledgment Regarding Insurance and Employee Benefit Plans....22

10.  GENERAL PROVISIONS......................................................22

      10.1.  Entire Agreement................................................22
      10.2.  Waiver..........................................................22
      10.3.  Amendments......................................................22
      10.4.  Expenses........................................................22
      10.5.  Notices.........................................................23
      10.6.  Assignment......................................................23
      10.7.  Commissions and Finder's Fees...................................23
      10.8.  Severability....................................................24
      10.9.  Counterparts....................................................24
      10.10.  Headings.......................................................24
      10.11.  Instruments of Further Assurance...............................24
      10.12.  Publicity......................................................24
      10.13.  No Third Party Beneficiaries...................................24
      10.14.  Waiver of Trial by Jury........................................24
      10.15.  Cumulative Remedies............................................24
      10.16.  Governing Law..................................................24

APPENDIX.....................................................................26

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                             EXHIBITS AND SCHEDULES
                             ----------------------

Exhibit A            Company's Certificate of Formation and Operating Agreement
Exhibit B            Form of Opinion of Counsel to Seller and Company
Exhibit C            Form of Opinion of Counsel to Buyer

Schedule 3.4         No Violation; Consents
Schedule 3.5         Financial Statements
Schedule 3.6         Liabilities and Obligations
Schedule 3.7         Absence of Certain Changes
Schedule 3.8         Tax Returns and Reports
Schedule 3.9         Title to and Condition of Assets
Schedule 3.11        Contracts
Schedule 3.12        Inventory
Schedule 3.14        Employment and Labor Matters
Schedule 3.15        Employee Benefits
Schedule 3.16        Intellectual Property
Schedule 3.17        Legal Compliance
Schedule 3.19        Environmental Matters
Schedule 3.20        Product Liability/Warranties
Schedule 3.21        Principal Customers and Suppliers

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                               PURCHASE AGREEMENT

          This PURCHASE AGREEMENT ("Agreement") is made and entered into as of
May 23, 2003, by and among Spire Corporation, a Massachusetts corporation
("Buyer"), and Stratos Lightwave, Inc., a Delaware corporation ("Seller"), and
Bandwidth Semiconductor, LLC, a Delaware limited liability company ("Company").

          Capitalized terms used but not defined herein shall have the
respective meanings set forth in the Appendix of Definitions attached hereto and
made a part hereof.

                                R E C I T A L S:
                                ----------------

          WHEREAS, Company's optoelectronics business conducts, both under
contract and on a commercial merchant basis, research, development and
production of compound semiconductor wafers and devices processed from
semiconductor wafers (the "Company Business"); and

          WHEREAS, Seller wishes to sell to Buyer, and Buyer wishes to purchase
from Seller, all of the ownership interest in Company, but excluding cash and
the Company's interest in land and buildings (and accompanying mechanical
systems such as electrical systems, plumbing systems, heating systems, air
conditioning systems, and security, alarm and/or entry systems) located at 25
Sagamore Road, Hudson, New Hampshire (the "Real Estate"), upon the terms and
conditions set forth herein.

          NOW, THEREFORE, in consideration of the mutual covenants and
agreements herein contained and in reliance upon the representations and
warranties hereinafter set forth, the parties agree as follows.

     1. PURCHASE AND SALE OF OWNERSHIP INTEREST.

          1.1. Ownership Interest. On the terms and subject to the conditions
contained herein, Seller agrees to sell, assign, transfer, convey and deliver to
Buyer and Buyer agrees to purchase from Seller at the Closing and on the Closing
Date (as each such term is defined in Section 1.4 hereof), free and clear of all
liens, claims and encumbrances (except as otherwise disclosed in and permitted
by this Agreement), all of the ownership interest in Company, but excluding the
Excluded Assets (as defined below).

          1.2. Excluded Assets. Notwithstanding anything to the contrary
contained herein, the following assets shall not be sold to Buyer and shall be
distributed by Company to Seller immediately prior to the Closing (the "Excluded
Assets"):

                     (a)       Cash All petty cash, cash on deposit, and funds
                               in payroll accounts, and all certificates of
                               deposit, bonds, stock and other securities held
                               by Company.

                     (b)       Real Estate All proceeds from the sale of the
                               Real Estate (which is contemplated to be
                               consummated prior to the Closing); provided,
                               however, that Seller and not the Company shall be
                               responsible for paying any attorney fees incurred

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                               by Seller in connection with the sale of the Real
                               Estate and such fees will not be paid out of the
                               assets of the Company.

          1.3. Documentation. In order to effectuate the sale, conveyance,
transfer and assignment contemplated by Section 1.1 hereof, Seller shall execute
and deliver on the Closing Date all such stock powers, bills of sale and other
documents or instruments of conveyance, transfer or assignment as shall be
necessary or appropriate to vest or confirm in Buyer, all right, title and
interest in and to all of the ownership interest in Company, all of which
documents shall be in form and substance satisfactory to counsel for Seller and
Buyer, acting reasonably.

          1.4. Closing; Closing Date. The consummation of the transactions
contemplated by this Agreement (the "Closing") shall take place at such location
as the parties may agree at 10:00 a.m., on May 23, 2003 or at such other time,
date or place as may be mutually agreed upon by Seller and Buyer (the "Closing
Date").

          At the Closing, (i) Seller shall sell, assign, transfer, convey and
deliver to Buyer the ownership interest in Company, (ii) Seller and Company will
deliver to Buyer the various agreements, certificates, opinions and documents
referred to in Section 6.1 below, (iii) Buyer will deliver to Seller and Company
the various agreements, certificates, opinions and documents referred to in
Section 6.2 below, and (iv) Buyer will pay to Seller the Purchase Price in
accordance with Section 2.1 hereof.

          1.5. Effective Time. Title to the ownership interest in Company shall
be deemed to have been transferred to Buyer at 11:59 p.m. (E.S.T) on the Closing
Date.

     2. PURCHASE PRICE.

          2.1. Purchase Price. At the Closing, Buyer shall pay to Seller the sum
of $750,000 in cash by wire transfer to an account designated by Seller (the
"Purchase Price") for 100% of the ownership interest in Company; provided;
however, that Buyer shall receive a credit in the amount of $25,035.03 against
the Purchase Price representing fifty percent of accrued vacation at May 20,
2003.

     3. REPRESENTATIONS AND WARRANTIES OF SELLER AND COMPANY.

          As an inducement to Buyer to enter into this Agreement, Seller and
Company, jointly and severally, represent and warrant to Buyer as follows:

          3.1. Organization, Power and Qualification. Seller is a corporation
duly organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation, and has all requisite corporate power and
authority to own or hold under lease its properties and assets and to carry on
its business as now conducted.

          Company is a limited liability company duly organized, validly
existing and in good standing under the laws of Delaware, and has all requisite
power and authority to own or hold under lease its properties and assets and to
carry on its business as now conducted. Company is duly registered to do
business and is in good standing as a foreign limited liability company in the
State of New Hampshire. True and complete copies of Company's certificate of
organization, as amended to date, and operating agreement, as amended to date,
are attached hereto as Exhibit A.

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          3.2. Subsidiaries. Company has no Subsidiaries and does not own,
directly or indirectly, any stocks, bonds or securities or any equity or other
proprietary interest in any corporation, partnership, joint venture, business
enterprise or other entity of any nature whatsoever.

          3.3. Authorization. Each of Seller and Company has all necessary power
and authority (corporate or otherwise) to make, execute and deliver this
Agreement and all other agreements and documents to be executed and delivered by
it pursuant hereto, and to consummate the transactions contemplated hereby and
thereby. The execution, delivery and performance of this Agreement and all other
agreements and documents to be executed and delivered by Seller and Company
pursuant hereto, and the consummation of the transactions contemplated hereby
and thereby have been duly approved and authorized by all necessary action on
each of Seller's and Company's part. This Agreement and all other agreements and
documents to be executed and delivered by Seller and Company pursuant hereto
constitute the valid and binding agreements of Seller and Company, enforceable
in accordance with their respective terms (subject, as to the enforcement of
remedies, to general equitable principles and to bankruptcy, insolvency and
similar laws affecting creditors' rights generally).

          3.4. No Violation; Consents. Except as disclosed on Schedule 3.4
hereto, neither the execution and delivery of this Agreement, nor the
consummation of the transactions contemplated hereby will constitute a violation
of, or be in conflict with, or result in a cancellation of, or constitute a
default under, or create (or cause the acceleration of the maturity of) any
debt, obligation or liability affecting Company pursuant to, or result in the
creation or imposition of any security interest, lien, or other encumbrance upon
any of Company's assets under: (a) any term or provision of the certificate of
organization (or other organic document) of Company; (b) any judgment, decree,
order, regulation or rule of any Governmental Authority; (c) any Law; (d) to
Seller's Knowledge, any contract, agreement, indenture, lease or other
commitment to which Company is a party or by which Company is bound; or (e) to
Seller's Knowledge, cause any material change in the rights or obligations of
any party under any such contract, agreement, indenture, lease, or other
commitment.

          Except as set forth on Schedule 3.4 hereto, no consent of, or notice
to, any federal, state, local or foreign authority, or any private person or
entity, is required to be obtained or given by Company in connection with the
execution, delivery or performance of this Agreement or any other agreement or
document to be executed, delivered or performed hereunder by Company, or to
enable Buyer to continue to conduct Company's business after the Closing in the
manner in which it is currently conducted.

          3.5. Financial Statements. Schedule 3.5 hereto contains true and
correct copies of the following financial statements: (i) the unaudited balance
sheet of Company, together with the related statement of operations at and for
each of the two (2) consecutive fiscal years ended April 30, 2002; and (ii) the
unaudited balance sheet of Company, together with the related statement of
operations for the eleven (11) month period ended March 30, 2003. The financial
statements described in subclauses (i) and (ii) above are collectively referred
to as the "Financial Statements".

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          To Seller's Knowledge, the Financial Statements (i) were prepared in
accordance with the books of account and other financial records of Company,
(ii) present fairly the financial condition and results of operation of Company
as of the dates and for the periods covered thereby, and (iii) have been
prepared in accordance with GAAP for interim financial statements (excluding
footnotes and other information required by GAAP for complete financial
statements).

          3.6. Liabilities and Obligations. To Seller's Knowledge, Company does
not have any liabilities or obligations (direct or indirect, contingent or
absolute, matured or unmatured) of any nature whatsoever, attributable to any
portion of Company's business, which are not reflected, reserved against or
given effect to in the most recent balance sheet included in the Financial
Statements except: (a) liabilities and obligations incurred in the ordinary
course of business since the date of the most recent balance sheet included in
the Financial Statements, which are of the same nature as those set forth in
such balance sheet, or (b) liabilities and obligations which are specifically
disclosed in Schedule 3.6.

          3.7. Absence of Certain Changes. Except as disclosed in Schedule 3.7,
to Seller's Knowledge, since January 31, 2003, Company's business has been
conducted in the ordinary course and consistent with past practice. Without
limiting the foregoing, except as disclosed in Schedule 3.7, to Seller's
Knowledge, since January 31, 2003, there has not been: (a) any material damage,
destruction or loss (whether or not covered by insurance) of Company's assets or
properties; (b) any material change in the customary methods of Company's
operations, including, without limitation, practices and policies relating to
manufacturing, purchasing, inventories, marketing, selling and pricing, (c) any
increase in the compensation, commissions or perquisites payable or to become
payable by Company to any of its employees, or any payment of any bonus, profit
sharing or other extraordinary compensation to any such employees (other than
any such increase or payment that was paid or that becomes payable in the
ordinary course of business consistent with past practices); (d) any change in
the accounting methods or practices followed by Company with respect to its
business or any change in depreciation or amortization policies or rates
theretofore adopted, other than changes required by GAAP; (e) any write-up or
write-down of the value of any inventories or revaluation of any assets of
Company's business, other than in the ordinary course of business consistent
with past practices and in accordance with GAAP; or (f) any sale, lease,
abandonment or other disposition by Company of any machinery, equipment or other
operating properties, or any intangible assets utilized in Company's operations,
other than in the ordinary course of business.

          3.8. Tax Returns and Reports. All returns and reports relating to
Taxes (the "Tax Returns") required to be filed by Company through the date
hereof have been, and as to Tax Returns required to be filed through the Closing
Date will be, timely filed with the appropriate Governmental Authorities in all
jurisdictions in which such Tax Returns are required to be filed, and all such
Tax Returns are or will be true and correct and prepared in accordance with
applicable Law and properly reflect, or will properly reflect, the Taxes of
Company for the periods covered thereby.

          Except as set forth on Schedule 3.8, all Taxes due and payable by
Seller with respect to all periods prior to and through the date hereof have
been, and through the Closing Date will be, duly and properly computed,
reported, fully paid and discharged and there are no unpaid Taxes with respect
to any period prior to and through the date hereof, and there will not

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be any unpaid Taxes with respect to any period through the Closing Date, which
are or could become a lien on the properties and assets of Company, except for
current Taxes not yet due and payable. All unpaid Taxes, whether or not
disputed, for all periods ending prior to and through the date hereof have been,
and through the Closing Date will be, properly accrued on the books and
financial records of Company in accordance with GAAP and in amounts sufficient
for the payment of all unpaid Taxes required to be paid by Company with respect
to such periods.

          Company has not received any notice of assessment or proposed
assessment by the Internal Revenue Service ("IRS") or any other Governmental
Authority in connection with any Tax Returns and there are no pending tax
examinations of or tax claims asserted against Company or its properties, except
as disclosed in Schedule 3.8. To Seller's Knowledge, there has been no
intentional disregard of any statute, regulation, rule or revenue ruling in the
preparation of any Tax Return applicable to Company. Company has not waived any
statute of limitations in respect of Taxes or agreed to any extension of time
with respect to a Tax assessment or deficiency.

          Except as disclosed in Schedule 3.8, there are no Tax liens on any of
the properties or assets of Company except for liens for current taxes not yet
due and payable and there is no basis for any additional assessment of any Taxes
with respect to Company. Company has not waived any law or regulation fixing, or
consented to the extension of, any period of time for assessment of any Taxes
which waiver or consent is currently in effect.

          Except as set forth in Schedule 3.8, all applicable sales and use tax
returns pertaining to machinery, equipment, office furniture, fixtures and other
assets of Company have been properly prepared and submitted to applicable
authorities and all applicable sales and use taxes have been paid. Except as set
forth in Schedule 3.8, Company has not received any requests for additional
information, notices, or claims, actual or threatened, pertaining to sales and
use taxes.

          Company has withheld and paid all Taxes required to have been withheld
and paid in connection with amounts paid or due and owing to any employee,
creditor, independent contractor, or other third party and has properly
reflected the status of all employees and independent contractors in connection
therewith as required by all applicable laws.

          3.9. Title to and Condition of Assets. Except as disclosed on Schedule
3.9 hereto, Company is the owner of, and has good and marketable title to, all
of its assets, including those assets and properties reflected in the most
recent balance sheet included in the Financial Statements (other than (i) the
Real Estate (which will be sold prior to the Closing), (ii) the Bedford Sublease
(which will be terminated at or prior to Closing), and (iii) those properties
and assets disposed of by Company since the date of the most recent balance
sheet included in the Financial Statements, in the ordinary course of business
and for fair value) in the amounts and categories reflected therein, and to all
assets and properties acquired by Company for its business after the date
thereof, free and clear of all mortgages, liens, pledges, charges, security
interests, encumbrances or other third party interests of any nature whatsoever,
except for the lien of current taxes not yet due and payable.

          3.10. Real Estate and Leases. Other than the Real Estate and the
Bedford, Massachusetts facility leased by Buyer to the Company pursuant to a
Sublease Agreement dated as of December 29, 1999 (the "Bedford Sublease"),
Company does not own or lease any real estate.

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          3.11. Contracts. To Seller's Knowledge, except as set forth in
Schedule 3.11, Company is not a party to, or bound by, any oral or written
contracts, agreements, commitments or understandings ("Contracts") with respect
to its business: (a) for the employment of any employee; (b) for leasing
personal property (including, without limitation, leases for office or computer
equipment, furniture, fixtures, and vehicles); (c) for the purchase or sale of
products or services (including, without limitation, customer purchase orders,
sales orders and vendor supply contracts); (d) between Company and any
Governmental Authority; (e) providing for the services of dealers, distributors,
sales representatives or similar representatives; (f) relating to the ownership,
use or licensing of any patents, trademarks, trade names, brand names,
copyrights, inventions, processes, know-how, formulae, trade secrets or other
proprietary rights; and (g) which are material to the Company Business.

          To Seller's Knowledge, except as disclosed on Schedule 3.11 hereto,
all of the Contracts constitute legal, valid and binding obligations of the
respective parties thereto, are in full force and effect, and neither Company,
nor any other party thereto has violated any provision of, or committed or
failed to perform any act which with notice, lapse of time or both would
constitute a default under the provisions of any Contract, the termination of
which could have a Material Adverse Effect. Correct and complete copies of all
written Contracts disclosed on Schedule 3.11 have been made available to Buyer.

          3.12. Inventory. Except as disclosed on Schedule 3.12 hereto, to
Seller's Knowledge: (i) all Inventories reflected on the most recent balance
sheet contained in the Financial Statements or acquired since the date thereof,
net of reserves, are and will at the Closing Date, consist of items of a quality
and quantity usable and salable in the ordinary course of the Company Business;
(ii) each item of Inventory reflected on the Financial Statements and the books
and records of Company is valued at the lower of cost or market in accordance
with GAAP, and Company has recognized all loss resulting from the obsolescence,
physical deterioration, changes in prices, discontinuation of product lines or
any other change resulting in a valuation of any item of Inventory at below
cost; (iii) all Inventories which may not reasonably be expected to be used or
sold within twelve (12) months have been classified as noncurrent assets and
have been reported as such in the Financial Statements; and (iv) Company has,
and on the Closing Date will have, sufficient amounts of Inventory to conduct
its business and such amounts are consistent with its past practices.

          3.13. Litigation. To Seller's Knowledge, there are no lawsuits,
proceedings, claims or governmental investigations pending or threatened
against, or involving, Company, any of its properties or assets, or any officers
or directors of Company, and there is no basis known to Company for any such
action, which in each case could have a Material Adverse Effect. To Seller's
Knowledge, there are no judgments, consents, decrees, injunctions, or any other
judicial or administrative mandates outstanding against Company which could have
a Material Adverse Effect.

          3.14. Employment and Labor Matters. Schedule 3.14 hereof contains a
list of the names of each employee of Company, together with their current
annual salary and total compensation for the 2002 calendar year.

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          Company is not a party to or is otherwise bound by any contract,
agreement or collective bargaining agreement with any labor union or
organization or other commitment respecting employment or compensation of any of
their respective officers, directors, agents or employees, and no employees of
Company are represented by any labor union or similar organization.

          Except as set forth on Schedule 3.14, there are no charges or
complaints involving any federal, state or local civil rights enforcement agency
or court; complaints or citations under the Occupational Safety and Health Act
or any state or local occupational safety act or regulation; unfair labor
practice charges or complaints with the National Labor Relations Board; or other
claims, charges, actions or controversies pending, or, to Seller's Knowledge,
threatened or proposed, involving Company and any employee, former employee or
any labor union or other organization representing or claiming to represent such
employees' interests, which could have a Material Adverse Effect.

          To Seller's Knowledge, except as disclosed on Schedule 3.14 hereto,
Company is and has heretofore been in compliance in all material respects with
all laws, rules and regulations respecting employment and employment practices,
terms and conditions of employment and wages and hours, the sponsorship,
maintenance, administration and operation of (or the participation of its
employees in) employee benefit plans and arrangements and occupational safety
and health programs, and Company is not engaged in any violation of any law,
rule or regulation related to employment, including unfair labor practices or
acts of employment discrimination, which could have a Material Adverse Effect.

          3.15. Employee Benefits. As used herein, the term "Employee Plan"
includes any pension, retirement, savings, disability, medical, dental, health,
life (including any individual life insurance policy to which Company makes
premium payments, whether or not such party is the owner, beneficiary or both of
such policy), death benefit, group insurance, profit sharing, deferred
compensation, stock option, bonus, incentive, vacation pay, severance pay, or
other employee benefit plan, trust, arrangement, contract, agreement, policy or
commitment (including without limitation, any pension plan ("Pension Plan") as
defined in Section 3(2) of ERISA, and any welfare plan as defined in Section
3(1) of ERISA ("Welfare Plan"), whether any of the foregoing is funded, insured
or self-funded, written or oral, (a) to which Company is a party or by which
Company (or any of its rights, properties or assets) is bound, or (b) with
respect to which Company has made any payments, contributions or commitments
since December 31, 2000, or may otherwise have any liability (whether or not any
such party still maintains such plan, trust, arrangement, contract, agreement,
policy or commitment). With respect to the Employee Plans:

          (a) There are no Employee Plans except as disclosed in Schedule 3.15,
or, to Seller's Knowledge, any employees entitled to retiree benefits under any
Welfare Plans except as disclosed in Schedule 3.15.

          (b) Company has not received any notice to correct any material
violation of any applicable laws, rules or regulations relating to any of said
plans, programs or policies described in Schedule 3.15 or the manner in which
they are administered, with which it has not complied; and the provisions and
operations of all such plans, programs and policies are in substantial
compliance with applicable laws and governmental rules and regulations.

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          (c) Company does not maintain or contribute to, nor at any time
maintained or contributed to, a "defined benefit plan" within the meaning of
Section 3(35) of ERISA. Company does not maintain nor has it had an obligation
to contribute to any multiemployer plan (within the meaning of Section 3(37) of
ERISA). Company does not maintain any employee welfare benefit plan (as
described in Section 3(1) of ERISA) except as set forth in Schedule 3.15. Each
employee benefit plan (within the meaning of Section 3(3) of ERISA) and each
related trust, insurance contract or fund maintained by, or contributed to, by
Company has complied in form and operation with all filings, reporting,
disclosure and other requirements of ERISA and, to the extent applicable, the
Code, except where the failure to so comply would not have a Material Adverse
Effect. Neither Company nor any of its officers or directors has engaged in any
transaction in violation of the prohibited transactions provisions set forth in
Section 4975 of the Code or Section 406 of ERISA, which would be reasonably
likely to result in material liability to any such party.

          (d) All required reports and descriptions (including Form 5500 annual
reports, summary annual reports, PBGC-1's, and summary plan descriptions) have
been timely filed or distributed appropriately with respect to each Employee
Plan. The requirements of COBRA have been met with respect to each Welfare Plan.

          (e) All contributions (including employer contributions and employee
salary reduction contributions) which are due have been paid to each Pension
Plan and all contributions for any period ending on or before the Closing Date
which are not yet due have been paid to each Pension Plan. All premiums or other
payments for all periods ending on or before the Closing Date have been paid
with respect to each Welfare Plan.

          (f) There is no Employee Plan that is a Welfare Plan, the benefits
under which are not provided exclusively from the assets of Company or through
insurance contracts.

          (g) The financial and actuarial statements, if any, for each Employee
Plan reflect in all material respects the financial condition and funding of the
Employee Plans as of the date of such financial and actuarial statements, and no
change has occurred with respect to the financial condition or funding of the
Employee Plans since the date of such financial and actuarial statements which
change would have a Material Adverse Effect.

          (h) Except as disclosed in Schedule 3.15, Company has not incurred,
and has not taken any actions that would cause to occur, a "complete withdrawal"
or "partial withdrawal", as defined in Sections 4203(a) and 4205(a),
respectively, of ERISA, from any multiemployer pension plan as to which Company
contributes, has contributed or has had an obligation to contribute. Except as
disclosed in Schedule 3.15, Company has not received from the sponsor of a
multiemployer pension plan any notice of, or any notice relating to, withdrawal
liability under Part 1 of Subtitle E of Title IV of ERISA relating to such plan.

          3.16. Intellectual Property. Schedule 3.16 hereto lists and identifies
correctly and completely the current interests of Seller and Company in (i) all
patents, trademarks, service marks, copyrights (whether or not registered) and
registrations and applications therefor, trade names, trade secrets,
confidential know-how, designs, invention disclosures, software, formulae and
similar proprietary information owned or used by Seller and the Company which
were previously acquired from Buyer or developed by Company on or after January
1, 2000
                                        8
<PAGE>

("Intellectual Property Rights"); (ii) all licenses, franchise agreements and
other similar agreements from third parties to the Company by which the Company
licenses the rights to use any Intellectual Property Rights; and (iii) all
licenses, franchise agreements, and other similar agreements from the Company to
third parties by which third parties license the rights to use any Intellectual
Property Rights (such licenses, together with the licenses in clause (ii),
referred to herein as the "Licenses").

          Except as indicated in Schedule 3.16, Seller or Company is the sole
and exclusive owner of all such Intellectual Property Rights, free and clear of
all liens, claims, charges, mortgages, pledges, security interests and to
Seller's Knowledge, has the sole and exclusive right to use all designs,
permits, labels, packages and displays used in connection therewith, and has all
of the rights and interests described in Schedule 3.16 relating thereto,
including but not limited to the right to receive the payments of fees and
royalties described therein and the right to freely assign its interests. To
Seller's Knowledge, no other person or entity owns any right, title or interest
not specified in Schedule 3.16, or has any right to a royalty or payment of any
kind from Seller or Company with respect to any items set forth in Schedule
3.16, except as expressly stated therein. There has been no asserted claim or
litigation challenging or threatening to challenge the right, title and interest
of Seller or Company with respect to any items set forth in Schedule 3.16.

          Except as disclosed in Schedule 3.16, to Seller's Knowledge, the
operations and business of Company do not violate any rights of others in any of
the items set forth in Schedule 3.16, and such rights of Company are not being
violated or infringed by others.

          Except as disclosed in Schedule 3.16 hereto, to Seller's Knowledge,
Company is in full compliance with all Licenses, and, there are no defaults by
other parties with respect to such Licenses. To Seller's Knowledge, such
licenses are valid and binding obligations of the respective parties thereto and
are enforceable in accordance with their respective terms.

          3.17. Legal Compliance.

          (a) Except as disclosed on Schedule 3.17 hereto, to Seller's
Knowledge, the Company is not in material violation of any law, regulation or
order of any court or federal, state, municipal, foreign or other governmental
department, commission, board, bureau, agency or instrumentality (including,
without limitation, laws, regulations, orders, restrictions and compliance
schedules applicable to environmental standards, immigration, controls, wages
and hours, civil rights and occupational health and safety) and Company has not
received any notice of claimed noncompliance.

          (b) To Seller's Knowledge, Company possesses or has applied for all
governmental and other permits, licenses, consents, certificates, orders,
authorizations and approvals, including Environmental Approvals (the
"Approvals"), to own or hold under lease and operate its assets and properties
and to carry on the Company Business as now conducted. Seller has not received
any notice of proceedings relating to the revocation or modification of any such
Approvals which, singly or in the aggregate, if the subject of an unfavorable
ruling or finding, could have a Material Adverse Effect. The Approvals are
identified in Schedule 3.17. Company is operating in substantial compliance with
the provisions, terms and conditions of the Approvals.

                                        9
<PAGE>

          (c) Except as disclosed on Schedule 3.17, to Seller's knowledge, there
are no export restrictions on the export or sale of any products manufactured,
distributed or sold by the Company.

          (d) Except as disclosed on Schedule 3.17, to Seller's knowledge, no
security clearance or similar approvals or authorizations from any Governmental
Authority are required in connection with the current conduct of the Company
Business.

          3.18. Transactions with Affiliates. No director or officer of Seller,
nor any member of the immediate family of any such persons has any direct or
indirect interest in (A) any assets or property which is owned or used by
Company in the conduct of the Company Business, or (B) any entity (other than
Seller and its Affiliates) which does business with Company. For purposes of
this section, no interest or transaction need be disclosed if it arises solely
out of the ownership of two percent (2%) or less of the securities of a company
that are registered pursuant to Section 12 of the Exchange Act.

          3.19. Environmental Matters.

          (a) Except as disclosed in Schedule 3.19, to the Seller's Knowledge:

(i) Company is in compliance with, and for the past three (3) years has been in
compliance with, all applicable Environmental Laws and all Environmental
Permits. All past non-compliance with Environmental Laws or Environmental
Permits has been resolved without any pending, on-going or future obligation,
cost or liability, and there is no requirement proposed for adoption or
implementation under any Environmental Law or Environmental Permit that is
reasonably expected to have a Material Adverse Effect.

(ii) There are no underground or aboveground storage tanks or any surface
impoundments, septic tanks, pits, swamps or lagoons in which Hazardous Materials
are being or have been treated, stored or disposed on the Real Estate.

(iii) Hazardous Materials have not been Released on any real property owned,
leased or occupied by Company or, during its period of ownership, lease or
occupancy, on any property formerly owned, leased or occupied by, or on behalf
of, Company.

(iv) Company is not conducting, and has not undertaken or completed, any
Remedial Action relating to any Release or threatened Release of Hazardous
Materials at real property owned, leased or occupied by Company or at any other
site, location or operation, either voluntarily or pursuant to the order of any
Governmental Authority or the requirements of any Environmental Law or
Environmental Permit.

(v) There is no asbestos or asbestos-containing material on any real property
owned, leased or occupied by Company.

(vi) There are no Environmental Claims pending or threatened against Company and
there are no circumstances that can reasonably be expected to form the basis of
any such Environmental Claim, including, without limitation, with respect to any
off-site disposal location currently or formerly used by, or on behalf of,
Company or with respect to any facilities previously owned, leased or occupied
by Company.

                                       10
<PAGE>

(vii) The Real Estate is not listed, nor has the Seller received written notice
that the Real Estate is proposed to be listed, on the National Priorities List
or the Comprehensive Environmental Response, Compensation and Liability
Information System under the federal Comprehensive Environmental Response,
Compensation and Liability Act or any analogous federal, state or local list.

          (b) Company has provided Buyer with copies of all environmental
assessment or audit reports and other similar studies or analyses relating to
the real property owned, leased or occupied by Company, or Company 's
operations, as applicable.

          (c) Except as disclosed in Schedule 3.19, neither the execution of
this Agreement nor the consummation of the transactions contemplated hereby will
require any Remedial Action or notice to or consent of Governmental Authorities
or any third party pursuant to any applicable Environmental Law or Environmental
Permit.

          3.20. Product Liability/Warranties.

          (a) Except as disclosed in Schedule 3.20, to Seller's Knowledge, there
are no actions, suits, inquiries, proceedings or investigations by or before any
Governmental Authority pending or threatened, against or involving Seller or
Company elating to any product alleged to have been manufactured or sold by
Company and alleged to have been defective or improperly designed or
manufactured, which, if adversely decided, could have, either individually or in
the aggregate, a Material Adverse Effect.

          (b) Except as disclosed in Schedule 3.20, to Seller's Knowledge, (i)
no customer of the Company has any right to return any products for credit or
refund pursuant to any formal or informal policy or practice of Company, and
(ii) Company has not given any express or implied warranties in connection with
product sales by the Company.

          3.21. Principal Customers and Suppliers. Schedule 3.21 sets forth a
separate list of the ten (10) largest customers of the Company in terms of sales
during the nine (9) months ended January 31, 2003, and the ten (10) largest
suppliers to the Company during the nine (9) months ended January 31, 2003,
showing in each case the approximate total sales and purchases by or from each
such customer or supplier during such period.

4. REPRESENTATIONS AND WARRANTIES OF BUYER.

          As an inducement for Seller and Company to enter into this Agreement,
Buyer represents and warrants to Seller and Company as follows:

          4.1. Organization. Buyer is a corporation duly organized and existing
under the laws of its jurisdiction of incorporation, and has all requisite
corporate power and authority to own or hold under lease its properties and
assets and to carry on its business as now conducted. Buyer is duly qualified to
do business and is in good standing as a foreign corporation in every
jurisdiction in which the nature of its activities or the ownership or leasing
of property requires such qualification, except where the failure to so qualify
would not have a material adverse effect upon its properties, assets, financial
condition, results of operation or business prospects.

                                       11
<PAGE>

          4.2. Authorization. Buyer has all requisite power and authority to
execute and deliver this Agreement and all other agreements and documents to be
executed and delivered by it pursuant hereto and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement and all other
agreements and documents to be executed and delivered by it pursuant hereto, and
the consummation of the transactions contemplated hereby and thereby have been
duly authorized by all necessary action on Buyer's part and this Agreement and
all other agreements and documents to be executed and delivered by Buyer
pursuant hereto constitute the valid and binding agreement of Buyer, enforceable
in accordance with their respective terms (subject, as to the enforcement of
remedies, to general principles of equity and to bankruptcy, insolvency and
similar laws affecting creditors' rights generally).

          4.3. No Violation; Consents. Neither the execution and delivery of
this Agreement, nor the consummation of the transactions contemplated hereby
will constitute a violation of, or be in conflict with, or result in a
cancellation of, or constitute a default under, or create (or cause the
acceleration of the maturity of) any debt, obligation or liability affecting, or
result in the creation or imposition of any security interest, lien, or other
encumbrance upon any of the assets of Buyer under: (a) any term or provision of
the Articles of Organization or by-laws of Buyer; (b) any judgment, decree,
order, regulation or rule of any court or governmental authority; (c) any
statute or law; (d) any contract, agreement, indenture, lease or other
commitment to which Buyer is a party or by which it is bound; or (e) cause any
material change in the rights or obligations of any party under any such
contract, agreement, indenture, lease, or other commitment.

          No consent of, or notice to, any federal, state or local authority, or
any other person or entity is required to be obtained or made by Buyer in
connection with the execution, delivery and performance of this Agreement and
the other agreements and documents to be executed, delivered and performed by
Buyer pursuant hereto.

     5. COVENANTS OF SELLER AND COMPANY.

          5.1. Conduct of Business Prior to Closing.

          (a) Seller and Company covenant and agree that, with respect to the
Company Business, between the date hereof and the Closing, Seller and Company
will conduct Company Business only in the ordinary course and consistent with
past practice. Without limiting the generality of the foregoing, Seller and
Company will, with respect to Company Business, (i) use their reasonable efforts
to (A) preserve intact the Company Business organization, (B) keep available to
Buyer the services of employees of the Company Business, (C) continue in full
force and effect without material modification currently maintained levels of
insurance coverage with respect to the Company Business, and (D) preserve its
current relationships with its customers, suppliers, and other persons with
which it has significant business relationships; (ii) not enter into any
contract or agreement with respect to the Company Business other than in the
ordinary course which involves amounts in excess of $20,000 or which is not
cancelable without penalty or further payment on more than thirty (30) days
notice, without Buyer's prior written consent, or (iii) not engage in any
practice, take any action, fail to take any action or enter into any transaction
which could cause any representation or warranty of Seller or Company to be
untrue or result in a breach of any covenant by Seller or Company in this
Agreement.

                                       12
<PAGE>

          (b) Each of Seller and Company covenants and agrees that, prior to the
Closing, except with Buyer's prior written consent, Seller and Company will each
refrain from doing any of the things enumerated in items (b) through (f) of the
second sentence of Section 3.7 hereof.

          5.2. Investigation. From the date hereof until the Closing, Seller and
Company shall at all reasonable times allow Buyer and its representatives full
access during normal business hours to all offices, operations, equipment,
property, books, contracts, commitments, records and affairs of Company for the
purpose of familiarizing themselves with the operation and conduct of all
aspects of Company's business and for the purpose of reasonable inspection,
examination, audit, counting and copying; provided such access shall not
unreasonably interfere with the operation of Company's business. All information
and documents provided by Seller and Company to Buyer in the course of such
investigation by Buyer shall be subject to the terms of that certain
Confidentiality Agreement dated as February 5, 2003 between Seller and Buyer
(the "Confidentiality Agreement").

          5.3. Regulatory Authorizations; Notices and Consents.

          (a) Each of Seller and Company shall use Reasonable Efforts to obtain
all authorizations, consents, orders and approvals of all Governmental
Authorities and officials that may be or become necessary for its execution and
delivery of, and the performance of its obligations pursuant to, this Agreement,
including, without limitation, approvals of the contracting officer under all
government contracts, and will cooperate fully with Buyer in promptly seeking to
obtain all such authorizations, consents, orders and approvals.

          (b) Each of Seller and Company shall give promptly such notices to
third parties and use its Reasonable Efforts to obtain such third party consents
as Buyer may in its sole discretion deem necessary or desirable in connection
with the transactions contemplated by this Agreement.

          (c) Buyer shall cooperate and use all Reasonable Efforts to assist
Seller and Company in giving such notices and obtaining such consents; provided,
however, that Buyer shall have no obligation to give any guarantee or other
consideration of any nature in connection with any such notice or consent or to
consent to any change in the terms of any agreement or arrangement which Buyer
in its sole discretion may deem adverse to its interests or the Company
Business.

          (d) The parties agree that, in the event any consent, approval or
authorization which is necessary to effect the assignment of any right or
agreement the benefit of which is to be acquired by Buyer pursuant to this
Agreement is not obtained prior to the Closing, Seller will, subsequent to the
Closing, reasonably cooperate with Company and Buyer in attempting to obtain
such consent, approval or authorization as promptly thereafter as practicable.

          5.4. Notice of Developments. Prior to the Closing, Seller shall
promptly notify Buyer in writing of (i) all events, circumstances, facts and
occurrences arising subsequent to the date of this Agreement which may
constitute a material breach of a representation or warranty or covenant of
Seller or Company in this Agreement or which have the effect of making any
representation or warranty of Seller or Company in this Agreement untrue or
incorrect in any

                                       13
<PAGE>

material respect, and (ii) all other material developments affecting assets,
liabilities, financial condition, operations, results of operations, customer or
supplier relations, employee relations, or future prospects of Seller or Company
Business.

          5.5. Schedules. From time to time prior to the Closing Date, Seller
and Company will promptly supplement or amend any Schedules provided for in this
Agreement (i) if any matter arises hereafter which, if existing or occurring at
or prior to the date of this Agreement, would have been required to be set forth
or described in any such Schedule, or (ii) if it becomes necessary to correct
any information in any such Schedule which has become inaccurate; provided,
however, that no such supplement or amendment to any Schedule shall be
considered in determining satisfaction of the conditions set forth in Section
6.1.1 of this Agreement.

          5.6. No Solicitation or Negotiation. Seller agrees that between the
date of this Agreement and the earlier of (i) the Closing and (ii) the
termination of this Agreement, none of Seller nor any of its Affiliates
(including the Company), directors, officers, representatives or agents will:
(a) solicit, initiate, encourage or accept any other proposals or offers from
any Person relating to any direct acquisition or purchase of Company's equity
interests or any material assets of Company (other than inventory to be sold in
the ordinary course of business consistent with past practice) (a "Bandwidth
Acquisition Proposal") or (b) participate in any discussions, conversations,
negotiations and other communications regarding, or furnish to any other Person
any information with respect to, or otherwise cooperate in any way, assist or
participate in, facilitate or encourage any effort or attempt by any other
Person to seek or to consummate a Bandwidth Acquisition Proposal. Seller and
Company immediately shall cease and cause to be terminated all existing
discussions, conversations, negotiations and other communications with any
Persons conducted heretofore with respect to any of the foregoing.

          For the avoidance of doubt, the foregoing provision shall in no way
restrict the ability of Seller to solicit, initiate, encourage or accept any
other proposals or offers from any Person relating to, nor shall the term
"Bandwidth Acquisition Proposal" be deemed to include: (i) any acquisition or
purchase of, or tender offer for, all or any portion of Seller's equity
securities, (ii) any merger, consolidation or business combination with Seller,
or (iii) any other extraordinary business transaction involving or otherwise
relating to Seller. Seller shall promptly notify Buyer if any Bandwidth
Acquisition Proposal or offer, or any inquiry or other contact with any Person
with respect thereto, is made and shall, in any such notice to Buyer, indicate
in reasonable detail the identity of the Person making such proposal, offer,
inquiry or contact and the terms and conditions of such proposal, offer, inquiry
or contact. Except as otherwise required by law, Seller shall hold the specific
terms of this Agreement confidential in the event of any unsolicited Bandwidth
Acquisition Proposal.

          5.7. Closing Conditions. Each of Seller and Company agrees to use its
Reasonable Efforts to satisfy the conditions to Buyer's obligation to consummate
the transactions contemplated by this Agreement set forth in Section 6.1 hereof.

     6. CONDITIONS TO CLOSING.

          6.1. Conditions to Buyer's Obligations. The obligations of Buyer to
consummate the transactions contemplated by this Agreement shall be subject to
the fulfillment at or prior to Closing of each of the following conditions:

                                       14
<PAGE>

          6.1.1 Representations and Warranties. All representations and
warranties made by Seller and Company contained in this Agreement shall be true
and correct in all material respects on the date hereof and as of the Closing
Date as though such representations and warranties were made as of the Closing
Date, and Seller and Company shall have duly performed or complied with all of
the obligations to be performed or complied with by it under the terms of this
Agreement on or prior to Closing.

          6.1.2 Certificate. Each of Seller and Company shall have delivered to
Buyer a certificate dated as of the Closing Date certifying that: (a) all of the
representations and warranties made by it under this Agreement and the Schedules
hereto are accurate, true and complete in all material respects, and (b) all of
the covenants, obligations and conditions to be performed as of the Closing on
its part under this Agreement have been duly performed.

          6.1.3 Opinion. Buyer shall have received from Lord, Bissell & Brook,
counsel to Seller and Company, an opinion of such counsel, dated the Closing
Date, in the form attached hereto as Exhibit B.

          6.1.4 Consents and Approvals. All material authorizations, consents,
waivers, approvals or other action required in connection with the execution,
delivery and performance of this Agreement by Seller and Company and the
consummation by Seller and Company of the transactions contemplated hereby, all
as so indicated in Schedule 3.4, shall have been obtained, and Seller and
Company shall have obtained any authorizations, consents, waivers, approvals or
other action required in connection with the execution, delivery and performance
of this Agreement to prevent a material breach or default by Seller or Company
under any contract to which it is a party or for the continuation of any
agreement to which it is a party and which relates and is material to the
Company Business.

          6.1.5 No Material Adverse Change. There shall have occurred no
material adverse change (whether or not covered by insurance) in the assets,
financial condition or business prospects of Seller or the Company Business.

          6.1.6 No Proceeding. No suit, action or other proceeding or
investigation shall to the knowledge of any party hereto be threatened or
pending before any Governmental Authority questioning the legality of this
Agreement or the consummation of the transactions contemplated hereby, in whole
or in part.

          6.1.7 Lien Releases, If Any. If the Company's assets are subject to
any liens or security interests not permitted under the terms of this Agreement,
Seller and the Company shall have obtained appropriate UCC termination
statements and/or releases therefor.

          6.1.8 Real Estate. The sale of the Real Estate by Company to Roger
Little or his designee shall have been completed.

          6.1.9 Closing Documents. The following documents shall have been
delivered to Buyer:

          (a) Assignment. An Assignment for the assignment, transfer and
conveyance of the ownership interest in Company by Seller to Buyer, in form and
substance reasonably acceptable to Buyer's counsel.

                                       15
<PAGE>

          (b) Patent Assignments. Assignments for the patents and other
intellectual property rights that are not in Company's name, in form and
substance reasonably acceptable to Buyer's counsel.

          (c) Certified Charter. True and correct copy of Company's certificate
of organization, as amended to date and certified by its jurisdiction of
formation.

          (d) Secretary's Certificate. True and complete copies of Company's
certificate of organization and operating agreement, each certified by its
Secretary or other acceptable officer.

          (e) Good Standing. Certificates of legal existence and good standing
dated within ten (10) days prior to the Closing Date for Seller from Delaware
and for Company from Delaware and New Hampshire.

          (f) Other. Such other documents as counsel for Buyer may reasonably
request.

          6.2. Conditions to Obligations of Seller and Company. The obligations
of Seller and Company to consummate the transactions contemplated by this
Agreement shall be subject to the fulfillment at or prior to the Closing of each
of the following conditions:

          6.2.1 Representations and Warranties. The representations and
warranties of Buyer contained in this Agreement shall be true and correct in all
material respects on the date hereof and as of the Closing Date as though such
representations and warranties were made as of the Closing Date, and Buyer shall
have duly performed or complied with all of the obligations to be performed or
complied with by it under the terms of this Agreement on or prior to Closing.

          6.2.2 Certificate. Buyer shall have delivered to Seller a certificate
of one of its duly authorized officers, dated as of the Closing Date certifying
that: (a) all of the representations and warranties made by Buyer under this
Agreement and the Schedules hereto are accurate, true and complete in all
material respects, and (b) all of the covenants, obligations and conditions to
be performed as of the Closing on the part of Buyer under this Agreement have
been duly performed.

          6.2.3 Seller and Company shall have received from James W. Spindler,
counsel to Buyer, an opinion of such counsel, dated the Closing Date, in the
form attached hereto as Exhibit C.

          6.2.4 Consents and Approvals. All material authorizations, consents,
waivers, approvals or other action required in connection with the execution,
delivery and performance of this Agreement by Seller and Company and the
consummation by Seller and Company of the transactions contemplated hereby, all
as so indicated in Schedule 3.4, shall have been obtained, and Seller and
Company shall have obtained any authorizations, consents, waivers, approvals or
other action required in connection with the execution, delivery and performance
of this Agreement to prevent a material breach or default by Seller or Company
under any contract to which it is a party or for the continuation of any
agreement to which it is a party and which relates and is material to the
Company Business.

                                       16
<PAGE>

          6.2.5 No Proceeding. No suit, action or other proceeding or
investigation shall to the knowledge of any party hereto be threatened or
pending before any Governmental Authority questioning the legality of this
Agreement or the consummation of the transactions contemplated hereby, in whole
or in part.

          6.2.6 Release of Bedford Lease. Seller and Methode Electronics, Inc.
shall have been fully released with respect to all obligations under the Bedford
Sublease, in form and substance acceptance to Seller's counsel.

          6.2.7 Intellectual Property License. Seller shall have been granted a
non-exclusive, non-transferable, non-sublicensable, royalty-free, perpetual
license to use the Intellectual Property Rights, such license to be in form and
substance reasonably acceptable to Seller's counsel.

          6.2.8 Supply Agreement. Seller and Company shall have entered into a
supply agreement with a term through April 30, 2015 pursuant to which Seller
shall receive "most favored customer" pricing status on product supply contracts
with Company and Buyer, so that Seller will receive pricing equal to the lowest
price per unit of delivery then being offered by Company and Buyer to third
parties without regard to the quantity involved in Seller's order, such
agreement to be in form and substance satisfactory to Seller. Notwithstanding
the above, Seller shall not be obligated to place purchase orders with the
Company and Buyer nor shall Buyer and Company be obligated to accept orders for
products that are not then offered to third-party customers.

          6.2.9 Real Estate. The sale of the Real Estate by Company to Roger
Little or his designee shall have been completed and the proceeds thereof shall
have been distributed by Company to Seller.

          6.2.10 Letter of Credit. The letter of credit referred to in Section
9.1 of this Agreement shall have been provided by Buyer to Seller, in form and
substance satisfactory to Seller.

          6.2.11 Closing Documents. The following documents shall have been
delivered to Seller and Company:

          (a) Purchase Price. The Purchase Price payable at Closing in
accordance with Section 2.1 hereof.

          (b) Good Standing. Certificate of legal existence and good standing
dated within ten (10) days prior to the Closing Date for Buyer from the
jurisdiction of its incorporation.

          (c) Other. Such other documents as Seller's counsel may reasonably
request.

     7. TERMINATION.

          7.1. Termination. This Agreement may be terminated at any time prior
to Closing as follows:

                                       17
<PAGE>

          (a) By Buyer, (i) if, between the date hereof and the time scheduled
for the Closing, an event or condition occurs that has resulted in or that may
be expected to result in a Material Adverse Effect; or (ii) upon a material
breach of any representation, warranty, covenant or agreement on the part of
Seller or Company set forth in this Agreement, or if any representation or
warranty of Seller or Company shall have become untrue, in either case, such
that the conditions set forth in Section 6.1.1 hereof would not be satisfied; or

          (b) By Seller or Company upon a material breach of any representation,
warranty, covenant or agreement on the part of Buyer set forth in this
Agreement, or if any representation or warranty of Buyer shall have become
untrue, in either case such that the conditions set forth in Section 6.2.1 would
not be satisfied; or

          (c) By either Buyer or Seller and Company if the conditions precedent
to their respective obligations under Section 6.1 and 6.2 hereof have not been
met and the Closing shall not have occurred by May 28, 2003; provided, however,
that the right to terminate this Agreement under this Section 7.1(c) shall not
be available to any party whose failure to fulfill any obligations under this
Agreement shall have been the cause of, or shall have resulted in, the failure
of the Closing to occur on or prior to such date; or

          (d) By either Buyer or Seller and Company in the event that any
Governmental Authority shall have issued an order, decree or ruling or taken any
other action restraining, enjoining or otherwise prohibiting the transactions
contemplated by this Agreement and such order, decree, ruling or other action
shall have become final and nonappealable; or

          (e) By the mutual written consent of all of the parties hereto.

          7.2. Effect of Termination. In the event of the termination of this
Agreement as provided in Section 7.1 above, this Agreement shall forthwith
become void, and no party to this Agreement shall have any liability or further
obligations to any other party hereto.

          7.3. Fees and Expenses; Damages. If this Agreement is terminated by
Buyer by reason of Seller's material breach of Seller's representations,
warranties, covenants or agreements hereunder, then Seller and Company shall
reimburse Buyer (not later than two (2) business days after submission of
statements therefor) for all out-of-pocket fees and expenses incurred by Buyer
in connection with its negotiation of the Agreement and its full legal
accounting and financial due diligence investigation to be performed by it and
its representatives, up to a maximum of $50,000 in the aggregate. For the
avoidance of doubt, Buyer shall not be entitled to reimbursement for such fees
and expenses if this Agreement is terminated by Buyer for any reason other than
Seller's material breach of Seller's representations, warranties, covenants or
agreements or by Seller or Company for any reason by which Seller or Company is
permitted to terminate this Agreement under the terms hereof.

8. INDEMNIFICATION.

          From and after the Closing, the parties shall be indemnified as set
forth below.

          8.1. Indemnification of Buyer. For a period of five (5) years after
the Closing Date, Seller covenants and agrees with Buyer that it shall reimburse
and indemnify and hold Buyer and its directors, officers, employees and agents
(the "Buyer Indemnified Parties")

                                       18
<PAGE>

harmless from, against and in respect of any and all actions, suits, claims,
proceedings, investigations, audits, demands, assessments, fines, judgments,
costs and expenses, (including, without limitation, reasonable attorneys' fees)
("Claims") incurred by any of Buyer Indemnified Parties that result from:

          (a) any inaccuracy in or breach of any representations or warranties
made by Seller in this Agreement, the Schedules or any other written statement,
list, certificate or other instrument furnished to Buyer by or on behalf of
Seller pursuant to this Agreement;

          (b) any nonfulfillment of any covenant or agreement of Seller under
this Agreement;

          (c) any fees, expenses or other payments incurred or owed by Seller to
any brokers or comparable third parties retained or employed by it or its
Affiliates in connection with the transactions contemplated by this Agreement;

          (d) any claims made by a third party alleging facts which, if true,
would entitle Buyer to indemnification pursuant to (a) through (c) above;

          (e) any failure of Seller to comply with its obligations under this
Section 8.1; or

          (f) any fees or expenses (including without limitation, reasonable
attorneys' fees) incurred by Buyer in enforcing its rights hereunder.

          8.2. Indemnification of Seller. For a period of five (5) years after
the Closing Date, Buyer covenants and agrees with Seller that it shall reimburse
and indemnify and hold Seller and its directors, officers, employees and agents
(the "Seller Indemnified Parties") harmless from, against and in respect of any
and all Claims incurred by any of Seller Indemnified Parties that result from:

          (a) any inaccuracy in or breach of any representations or warranties
made by Buyer in this Agreement, the Schedules or any other written statement,
list, certificate or other instrument furnished to Seller by or on behalf of
Buyer pursuant to this Agreement;

          (b) any nonfulfillment of any covenant or agreement of Buyer under
this Agreement;

          (c) any fees, expenses or other payments incurred or owed by Buyer to
any brokers or comparable third parties retained or employed by them or their
affiliates in connection with the transactions contemplated by this Agreement;

          (d) any and all amounts paid or payable by Seller under that certain
Corporate Guaranty dated as of September 12, 2001 by Seller to General Electric
Capital Corporation ("GE Capital") relating to Company's obligations under that
certain Master Lease Agreement dated as of September 12, 2001 between Company
and GE Capital (the "GE Lease");

          (e) any payments or accruals for salaries, wages, bonuses, or vacation
to Company employees relating to and incurred with respect to the periods on or
prior to the

                                       19
<PAGE>

Closing Date, whether or not due or payable on or prior to the Closing Date;

          (f) any severance obligations to Company employees, if any, that are
terminated by Company or Buyer any time after the Closing;

          (g) any claims made by a third party alleging facts which, if true,
would entitle Seller to indemnification pursuant to (a) through (e) above;

          (h) any failure of Buyer to comply with its obligations under this
Section 8.2; or

          (i) any fees or expenses (including without limitation, reasonable
attorneys' fees) incurred by Seller in enforcing its rights hereunder.

          8.3. Method of Asserting Claims. The party seeking indemnification
(the "Indemnitee") will give prompt written notice to the other party or parties
(the "Indemnitor") of any Claim which it discovers or of which it receives
notice after the Closing and which might give rise to a claim by it against
Indemnitor under Section 8 hereof, stating the nature, basis and (to the extent
known) amount thereof; provided that failure to give prompt notice shall not
jeopardize the right of any Indemnitee to indemnification unless such failure
shall have materially prejudiced the ability of the Indemnitor to defend such
Claim.

          In case of any Claim or suit by a third party or by any governmental
body, or any legal, administrative or arbitration proceeding with respect to
which Indemnitor may have liability under the indemnity agreement contained in
this Section 8, Indemnitor shall be entitled to participate therein, and, to the
extent desired by it, to assume the defense thereof, and after notice from
Indemnitor to Indemnitee of the election so to assume the defense thereof,
Indemnitor will not be liable to Indemnitee for any legal or other expenses
subsequently incurred by Indemnitee in connection with the defense thereof,
other than reasonable costs of investigation, unless Indemnitor does not
actually assume the defense thereof following notice of such election.
Indemnitee and Indemnitor will render to each other such assistance as may
reasonably be required of each other in order to insure proper and adequate
defense of any such suit, Claim or proceeding. If the Indemnitor actually
assumes the defense of the Indemnitee, the Indemnitee will not make any
settlement of any Claim which might give rise to liability of Indemnitor under
the indemnity agreements contained in this Section without the written consent
of Indemnitor, which consent shall not be unreasonably withheld, and the
Indemnitor shall not agree to make any settlement of any Claim which would not
include the unconditional release of the Indemnitee without the written consent
of Indemnitee, which consent shall not be unreasonably withheld.

          8.4. Nature and Survival of Representations. All statements made by or
on behalf of Seller and Company herein or in the Schedules, shall be deemed
representations and warranties of Seller and Company, regardless of any
investigation made by or on behalf of Buyer. The representations and warranties
made by Seller and Company, on the one hand, and by Buyer, on the other hand,
under this Agreement shall survive the Closing (in the absence of a showing of
willful and knowing misrepresentation or breach) until October 31, 2003, except
that (i) the representations and warranties set forth in Section 3.8 (Tax
Returns and Reports) and Section 3.15 (Employee Benefits) shall survive the
Closing until ninety (90) days after the

                                       20
<PAGE>

expiration of the applicable statute of limitations and (ii) representations and
warranties set forth in Section 3.9 (Title to and Condition of Assets) and
Section 3.18 (Environmental Matters) shall survive for a period of five (5)
years after the Closing.

          8.5. Limitation on Aggregate Claims. Notwithstanding any other
provision herein to the contrary, (i) no Claims may be asserted by any party on
the basis of breaches of representations and warranties pursuant to Sections
8.1(a) and 8.2(a) of this Agreement until the aggregate amount of all such
Claims of such party shall exceed $25,000 (the "Threshold Amount"), at which
time the party seeking indemnification shall be entitled to recover the full
Threshold Amount plus all amounts in excess thereof; provided that Claims based
upon Sections 8.1(b) through (f), Sections 8.2(b) through (h) and Claims based
upon a breach of the representations and warranties set forth in Sections 3.8
(Tax Returns and Reports) of this Agreement, shall not be subject to the
limitations in this Section 8.5 and (ii) the maximum liability of Seller for
indemnification under Section 8.1 hereof shall not exceed $750,000 (the "Maximum
Amount"); provided, however, that on each occasion after the Closing that Buyer
or the Company causes to be paid to GE Capital a regularly scheduled Basic Rent
payment under the terms of the GE Lease, the Maximum Amount hereunder shall be
deemed increased by such amount. Notwithstanding anything to the contrary in
this Agreement (i) the Threshold Amount for any claims for breaches of the
representations and warranties set forth in Section 3.8 (Tax Returns and
Reports) shall be $0, and (ii) Seller shall have no liability for any claims
regarding Taxes hereunder relating to the Company Business for any periods prior
to December 29, 1999.

     9. OTHER AGREEMENTS.

          9.1. GE Lease. After the Closing, Company agrees to comply (and Buyer
agrees to cause Company to comply) with all of its obligations under the GE
Lease until the lease expires or is terminated. During such period, Buyer shall
provide Seller with a letter of credit in a form and from a bank acceptable to
Seller in the amount of $73,000 to secure Buyer's and Company's obligations
under the GE Lease.

          9.2. Settlement Agreement. Buyer, Seller and Company are parties to a
Settlement Agreement dated as of January 30, 2003 (the "Settlement Agreement");
and hereby acknowledge and agree that Section 6 of the Settlement Agreement
allows the continued survival of certain provisions in Section 10.1 of the Asset
Purchase Agreement dated November 18, 1999, relating to the non-solicitation of
employees. Buyer, Seller and Company further agree that it shall not be regarded
as a breach of such Asset Purchase Agreement if Buyer hires or solicits for hire
any current or former employees of Company, so long as they are not then
employees of Seller or of one of Seller's other Affiliates.

          9.3. Employees. After the Closing, Buyer shall cause Company to
continue to employ all Company employees immediately prior to the Closing at a
compensation level substantially similar to the compensation paid to each such
employee by Company immediately prior to the Closing for a period of no less
than ninety (90) days. In addition, Buyer shall provide all Company employees
with employee benefit plans and arrangements which in the aggregate are no less
favorable than those provided by Buyer to its other employees prior to the
Closing Date and Company employees will be given credit under Buyer's employee
benefit plans and arrangements for all service credited with Company for
purposes of eligibility, vesting and benefit accrual.

                                       21
<PAGE>

          9.4. Releases. As of the Closing, the Seller and its Affiliates hereby
release and discharge Buyer and Company, and Buyer and Company hereby release
and discharge the Seller and each of its Affiliates, from and against any and
all claims contentions, demands, causes of action at law or at equity, debts,
liens, agreements, notes, obligations or liabilities of any nature, character or
description whatsoever, whether known or unknown, contingent or matured, which
any of the Seller and its Affiliates, on one hand, and Buyer and Company, on the
other hand, may now have or hereafter have against the other by reason of any
matter, event, thing or state of facts occurring, arising, done, omitted or
suffered to be done from the beginning of the world through the Closing Date;
provided, however, that this release is not intended to, and shall not release
Seller, the Company or Buyer from any claims arising out of this Agreement.

          9.5. Acknowledgment Regarding Insurance and Employee Benefit Plans.
Buyer acknowledges that it will not be acquiring Seller's insurance policies or
employee benefit plans hereunder, and Buyer shall have sole responsibility for
obtaining and establishing such insurance and employee benefit plans for Company
as Buyer shall deem appropriate in its sole discretion in accordance with the
terms of this Agreement. Seller shall have no responsibility or liability for
any actions or inactions of Buyer with respect to insurance policies or employee
benefit plans for Company as of any time after the Closing.

     10. GENERAL PROVISIONS.

          The parties further covenant and agree as follows:

          10.1. Entire Agreement. This Agreement and the other agreements and
documents referred to herein and the Confidential Disclosure Agreement dated
February 5, 2003 between Buyer and Seller set forth the entire understanding of
the parties with respect to the subject matter hereof. Any previous documents or
discussion drafts prepared by the parties regarding the subject matter hereof,
including, without limitation, the Proposed Term Sheet of early February 2003,
are merged into and superseded by this Agreement, provided that the obligations
of the parties under such Confidential Disclosure Agreement shall remain in
effect until the Closing shall have occurred at which time such obligations
shall terminate.

          10.2. Waiver. Any of the terms or conditions of this Agreement may be
waived at any time by the party or parties entitled to the benefit thereof but
only by a written notice signed by the party or parties waiving such terms or
conditions.

          10.3. Amendments. This Agreement may be amended, supplemented or
interpreted at any time only by written instrument duly executed by each of the
parties hereto.

          10.4. Expenses. The parties shall each pay its or their own expenses,
including, without limitation, the expenses of its or their own counsel,
investment bankers and accountants, incurred in connection with the preparation,
execution and delivery of this Agreement and the other agreements and documents
referred to herein and the consummation of the transactions contemplated hereby
and thereby.

          All expenses of the parties in enforcing any of the provisions of this
Agreement and the other agreements and documents referred to herein, including
reasonable attorneys' fees, shall be borne by the party who may be found in
default or noncompliance with the provisions of this Agreement and the other
agreements and documents referred to herein.

                                       22
<PAGE>

          10.5. Notices. All notices, requests, demands and other communications
required or permitted to be given hereunder shall be by hand-delivery, certified
or registered mail, return receipt requested; telecopier, or air courier to the
parties set forth below. Such notices shall be deemed given: at the time
personally delivered, if delivered by hand; at the time received if sent
certified or registered mail; when receipt is acknowledged by facsimile
equipment if telecopied and if a copy is also promptly mailed by certified or
registered mail; and the fifth (5th) business day after timely delivery to the
courier, if sent by air courier.

               If to Seller            Stratos Lightwave, Inc.
               or Company:             7444 W. Wilson Avenue
                                       Chicago, Illinois 60706
                                       Attention: Mr. James W. McGinley
                                       Telephone: 708-867-9600
                                       Telecopier: 708-867-3288

               Copy to:                Lord, Bissell & Brook
                                       115 South LaSalle Street
                                       Chicago, Illinois 60603
                                       Attention:  James W. Ashley, Jr., Esq.
                                       Telephone:  312-443-0700
                                       Telecopier:  312-443-0336

               If to Buyer:            Spire Corporation
                                       One Patriots Park
                                       Bedford, Massachusetts 01730-2396
                                       Attention:  Mr. Roger G. Little
                                       Telephone:  781-275-6000
                                       Telecopier:  781-687-9774

               Copy to:                James W. Spindler, Esq.
                                       Counselor at Law
                                       66 Weston Road
                                       Lincoln, Massachusetts 01773
                                       Telephone:  781-259-9832
                                       Telecopier:  781-259-9846

          10.6. Assignment. Neither this Agreement nor any of the rights and
obligations hereunder may be assigned by any party without the prior written
consent of the other parties hereto. Subject to the foregoing, this Agreement
shall be binding upon and inure to the benefit of and be enforceable by the
respective heirs, legal representatives, successors and permitted assigns of the
parties hereto.

          10.7. Commissions and Finder's Fees. Buyer, on the one hand, and
Seller and Company the other hand, represent and warrant that none of them has
retained or used the services of any individual, firm or corporation in such
manner as to entitle such individual, firm or corporation to any compensation
for brokers' or finders' fees with respect to the transactions contemplated
hereby for which the other may be liable.

                                       23
<PAGE>

          10.8. Severability. In the event that any one or more of the
provisions contained in this Agreement shall be invalid, illegal or
unenforceable in any respect for any reason, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions of this Agreement shall not be in any way impaired.

          10.9. Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

          10.10. Headings. The headings of the Sections and the subsections of
this Agreement are inserted for convenience of reference only and shall not
constitute a part hereof.

          10.11. Instruments of Further Assurance. Each of the parties hereto
agrees, upon the request of any of the other parties hereto, from time to time
to execute and deliver to such other party or parties all such instruments and
documents of further assurance or otherwise as shall be reasonable under the
circumstances, and to do any and all such acts and things as may reasonably be
required to carry out the obligations of such requested party hereunder.

          10.12. Publicity. No notices to third parties or other publicity,
including press releases, concerning any of the transactions provided for herein
shall be made by any party hereto unless planned and coordinated jointly among
the parties hereto, except to the extent otherwise required by law.

          10.13. No Third Party Beneficiaries. Nothing in this Agreement is
intended nor shall it be construed to give any person, firm, corporation or
other entity, other than the parties hereto and their respective successors and
permitted assigns, any right, remedy or claim under or in respect of this
Agreement or any provisions hereof.

          10.14. Waiver of Trial by Jury. The parties hereby knowingly,
voluntarily and intentionally waive any right they may have to a trial by jury
in respect to any litigation arising out of, under or in connection with this
Agreement, or any course of conduct, course of dealing, statements (whether
verbal or written) or actions of any party hereto. This provision is a material
inducement for Buyer, Seller and Company entering into this Agreement.

          10.15. Cumulative Remedies. Except as otherwise expressly provided in
this Agreement, all rights and remedies of the parties hereto are cumulative of
each other and of every other right or remedy such parties may otherwise have at
law or in equity, and the exercise of one or more rights or remedies shall not
prejudice or impair the concurrent or subsequent exercise of other rights or
remedies.

          10.16. Governing Law. This Agreement shall be governed, construed and
enforced in accordance with the internal laws of the State of Delaware,
excluding any choice of law rules which may direct the application of the laws
of another jurisdiction.

                                       24
<PAGE>

          IN WITNESS WHEREOF, this Agreement has been duly executed by the
parties hereto on the day and year first above written.

STRATOS LIGHTWAVE, INC.                       SPIRE CORPORATION

By:    /s/ David Slack                        By:    /s/ Roger G. Little
       ---------------------------                   ---------------------------
Name:  David Slack                            Name:  Roger G. Little
       ---------------------------                   ---------------------------
Title: VP, Finance & CFO                      Title: President & CEO
       ---------------------------                   ---------------------------

BANDWIDTH SEMICONDUCTOR, LLC

By:  Stratos Lightwave, Inc.
Its Sole Member

By:    /s/ David Slack
       ---------------------------
Name:  David Slack
       ---------------------------
Title: VP, Finance & CFO
       ---------------------------

                                       25
<PAGE>

                             APPENDIX OF DEFINITIONS
                             -----------------------

          The following definitions shall be applicable for purposes of the
Agreement except as otherwise specifically provided to the contrary in the text
of the Agreement.

          "Affiliates" of a person shall mean any person or entity controlling,
controlled by or under common control with that person. "Control" for this
purpose shall mean the possession, directly or indirectly, of the power to
direct or cause the direction of the management and policies of a person,
whether through the ownership of voting securities or interests, by contract, or
otherwise.

          "Code" shall mean the Internal Revenue Code of 1986, as amended.

          "Environment" shall mean surface waters, groundwaters, surface water
sediment, soil, subsurface strata, ambient air and other environmental medium.

          "Environmental Claims" shall mean any and all actions, suits, demands,
demand letters, claims, liens, notices of non-compliance or violation, notices
of liability or potential liability, investigations, proceedings, consent orders
or consent agreements relating in any way to any Environmental Law or any
Hazardous Material or arising from any alleged injury to threat of injury to
health, safety or the Environment.

          "Environmental Law" shall mean any Law, rule or regulation, now or
hereafter in effect and as amended, and any judicial or administrative
interpretation thereof, including any judicial or administrative order, consent
decree or judgment, relating to pollution or protection of the Environment,
health, safety or natural resources or to the use, handling, transportation,
treatment, storage, disposal, release or discharge of Hazardous Materials.

          "Environmental Permit" shall mean any permit, approval, identification
number, license, or other authorization required to operate the Optoelectronics
Business under any applicable Environmental Law.

          "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

          "GAAP" shall mean United States generally accepted accounting
principles as in effect from time to time and applied consistently throughout
the periods involved.

          "Governmental Authority" shall mean any United States federal, state
or local or any non-U.S. government, governmental, regulatory or administrative
authority, state enterprise, agency or commission or any court, tribunal, or
judicial or arbitral body.

          "Hazardous Materials" shall mean (a) petroleum and petroleum products,
by-products or breakdown products, radioactive materials, asbestos-containing
materials and polychlorinated biphenyls, and (b) any other chemicals. materials,
or substances regulated as toxic or hazardous or as a pollutant, contaminant or
waste under any applicable Environmental Laws.

                                       26
<PAGE>

          "Law(s)" shall mean any federal, state, local or foreign statute, law,
ordinance, regulation, rule, code, order, other requirement or rule of law.

          "Material Adverse Effect" shall mean any change or effect that is or
could be materially adverse to the business, financial condition or results of
operation or business prospects of Seller or of the Company Business, as
presently conducted, or on the ability of Seller to execute this Agreement and
consummate its obligations hereunder.

          "Person" shall mean an individual, a partnership, a corporation, an
association, a joint stock company, a trust, a joint venture, an unincorporated
organization, or a governmental entity (or department, agency or political
subdivision thereof).

          "Reasonable Efforts" shall mean the good faith effort that a person
ordinarily would use, apply or exercise to protect his own rights and business,
provided that when used in connection with the obtaining of a consent, approval
or other act of an unaffiliated third person or governmental authority,
"reasonable efforts" shall not require the commencement of litigation against or
acquisition of control of such third person or the assets or obligations
requiring such consent, the acceleration of payment of any indebtedness or the
payment of money.

          "Release" shall mean disposing, discharging, injecting, spilling,
leaking, leaching, dumping, emitting, escaping, emptying, seeping, placing, and
the like into or upon any land or water or air or otherwise into the
Environment.

          "Remedial Action" shall mean any investigation, assessment,
monitoring, treatment, excavation, removal, remediation, or cleanup of Hazardous
Materials in the Environment.

          "Seller's Knowledge" The phrase "to Seller's Knowledge" or similar
phrases shall mean the actual knowledge of the officers of Seller after due
inquiry by such persons to (i) appropriate employees of Seller who reasonably
would be expected to have knowledge regarding particular aspects of the
Company's business (such as, for example, Seller's human resources and
intellectual property personnel), and (ii) Edward Gagnon and Dick Rogers, the
Company's General Manager and Controller, respectively. Buyer acknowledges and
agrees that the delivery by Seller to Buyer of a certificate from Messrs. Gagnon
and Rogers attesting to the accuracy of the representations and warranties of
Seller and Company set forth in Article 3 of this Agreement as of the Closing
Date shall fully satisfy the obligations of the officers of Seller to make due
inquiry to Messrs. Gagnon and Rogers.

           "Subsidiary" shall mean any Person with respect to which a specified
Person (or Subsidiary thereof) owns a majority of the common stock or has the
power to vote or direct the voting of sufficient securities to elect a majority
of the directors.

           "Taxes" shall mean all federal, state, local and foreign income,
excise, property, sales, use, payroll, intangibles, franchise and other taxes
and assessments of whatever nature, and all penalties and interest related
thereto.

                                       27EXHIBIT 10(i)
                                                                   -------------

                                 LEASE AGREEMENT

                                 BY AND BETWEEN

                      ROGER G. LITTLE, TRUSTEE OF SPI-TRUST
                                   AS LANDLORD

                                       AND

                                SPIRE CORPORATION
                                    AS TENANT

                               DATED: MAY 23, 2003
<PAGE>

            THIS LEASE AGREEMENT (this "LEASE AGREEMENT") is hereby made and
entered into as of this 23rd day of May, 2003, by and between Roger G. Little,
Trustee of SPI-TRUST, established under a declaration of trust dated October 30,
1996, a certified copy of which is recorded with the Hillsborough County
Registry of Deeds, as of the date hereof at Book __________, Page __________,
having a mailing address of One Patriots Park, Bedford, Massachusetts, 01730
(the "LANDLORD") and Spire Corporation, a Massachusetts corporation, with an
address of One Patriots Park, Bedford, Massachusetts, 01730 (the "TENANT").

                              W I T N E S S E T H:

            1. Lease of Premises. Subject to all of the provisions herein
contained, and in consideration of the rentals to be paid to Landlord by Tenant,
and the other covenants and agreements to be kept and performed by Tenant
hereunder, as hereinafter set forth, Landlord hereby leases to Tenant, and
Tenant hereby leases from Landlord, the premises ("PREMISES") commonly known and
numbered as 25 Sagamore Park Road situated in the Town of Hudson, Hillsborough
County, New Hampshire, all as more particularly described on Exhibit A attached
hereto and made a part hereof. The Premises include all of the land (the "LAND")
included in the Premises, the building (the "BUILDING") located on the Premises,
all of the other improvements and fixtures (the "IMPROVEMENTS") located on the
Premises, the benefit of all of the easements, covenants, conditions and
restrictions benefiting the Premises, and the burden of all of the easements,
covenants, conditions and restrictions burdening the Premises. Except as
otherwise provided herein, the Tenant shall have the right to use the Premises
during the Term of this Lease for any lawful purpose. The square footage of the
Building upon which the Rental is based shall be 90,000 square feet.

            2. Term. The term of this Lease Agreement shall be for a period of
five (5) years, beginning on the 1st day of June, 2003 (the "COMMENCEMENT DATE")
and, unless terminated as herein provided, continuing until expiration on the
31st day of May, 2008. Landlord hereby grants Tenant the right and option to
extend this Lease Agreement for two additional periods of five (5) years each,
commencing on June 1, 2008 and June 1, 2013, respectively, and, unless
terminated as herein provided, continuing until expiration on May 31, 2013 and
May 31, 2018, respectively. The extension options granted herein are conditioned
upon Tenant's not being in default beyond any applicable grace period of the
Tenant's covenants hereunder and upon Tenant's giving Landlord notice of its
intention to so extend on or before December 1, 2007 and December 1, 2012,
respectively.

            3. Rent. For the use and occupancy of the Premises Tenant hereby
covenants and agrees to pay to or for the account of Landlord as rental
("RENTAL"), without deduction or offset, an annual fixed rental calculated at
the rate set forth in the chart below (hereinafter the "BASE RENTAL"), due and
payable in advance in monthly installments as set forth in the chart below, at
Landlord's business premises located at One Patriots Park, Bedford,
Massachusetts, 01730, on the first day of each and every calendar month during
the term of this Lease Agreement; a prorated and proportional rent shall be due
for any periods of less than a calendar month at the commencement and expiration
of the lease term, all without set off or deduction except as may
<PAGE>

be required by law in order to preserve any claim of Tenant thereto.

          --------------- --------------- ------------------- ------------------
             TERM YEAR       RATE/FOOT         ANNUAL RENT       MONTHLY RENT
          --------------- --------------- ------------------- ------------------
          Year 1                $6.00          $540,000.00        $45,000.00
          --------------- --------------- ------------------- ------------------
          Year 2                $7.50          $675,000.00        $56,250.00
          --------------- --------------- ------------------- ------------------
          Year 3                $8.50          $765,000.00        $63,750.00
          --------------- --------------- ------------------- ------------------
          Year 4               $10.50          $945,000.00        $78,750.00
          --------------- --------------- ------------------- ------------------
          Year 5               $13.50        $1,215,000.00       $101,250.00
          --------------- --------------- ------------------- ------------------

            In addition to the Base Rental set forth above, Tenant hereby
covenants and agrees to pay the following on behalf of the Landlord as a part of
the Rental without deduction or offset.

               (a) All real estate taxes, or taxes in the nature of real estate
taxes, or taxes assessed in lieu of or in addition thereto (except income taxes
of general application, inheritance, estate or like taxes) including special and
general assessments, however the same may be designated, levied or to be levied
by any taxing authority upon the Premises throughout the entire term of this
Lease Agreement; the same shall be paid by Tenant directly to such taxing
authority, whether mailed directly to Tenant or upon presentation of the tax
bill by Landlord, but in no event later than fifteen (15) days prior to the last
date upon which such taxes may be paid without interest or penalty. If the first
or last year of the term of this Lease Agreement shall not be co-extensive with
the tax year the amount of taxes payable by Tenant hereunder for such years
shall be prorated in proportion to the period of effectiveness of the Lease
Agreement during such years. Tax receipts shall be furnished to Landlord by
Tenant from time to time upon request to show Tenant's compliance herewith on a
current basis. If requested by any first mortgagee of the Premises, Tenant
agrees to instead make monthly deposits to such mortgagee on account of such
taxes in an amount reasonably estimated to be sufficient to pay such taxes when
they become due, provided that such deposits are maintained in a separate
account and any interest payable with respect thereto shall be payable to
Tenant.

               (b) All costs of electricity, gas, fuel, water and sewage
assessed against the Premises, which services shall be placed in the name of
Tenant, and the bills therefore shall be mailed directly to Tenant and paid
directly by Tenant to the provider of such services.

               (c) All other costs and expenses of every kind with respect to
operation, maintenance and repair of the Premises, excepting those undertaken by
Landlord pursuant to Section 7(b) hereof.

            4. Cost of Living Adjustment. In the event that as of any
anniversary of the Commencement Date ("Anniversary Date") after the first
five-year term, there shall have been an increase in the CPI over the last
Anniversary Date, the fixed rental payable pursuant to Section 3 for the
succeeding year shall be subject to adjustment as herein provided. The amount of
such adjusted fixed rental shall be equal to the sum of: (i) the Base Rental;
plus (ii) the Base Rental multiplied times the Adjustment Percentage. In no
event shall the adjusted fixed rental calculated hereunder be less than the
rental payable during the preceding year. As used herein:

                                       2
<PAGE>

the term "Base Rental" shall mean an annual rental as set forth in the chart in
Section 3 above; the term "CPI" shall mean the Consumer Price Index for Urban
Wage Earners and Clerical Workers for Boston, published by the United States
Department of Labor, Bureau of Labor Statistics, using ____ as base 100 (or any
other index which supercedes such index); the term "Adjustment Percentage" shall
mean the percentage derived from a ratio having as its denominator Y and as its
numerator the difference between X and Y where X is the monthly index number
last established under the CPI prior to the Anniversary Date in question and Y
is the monthly index number last established under the CPI prior to the
Commencement Date.

            5. Security Deposit. At the time of the execution hereof, Tenant
shall deposit with the Landlord a security deposit (the "Security Deposit") in
the amount of $135,000.00 in cash to be held by Landlord without interest during
the term hereof, and any extensions, and for so long thereafter as Tenant is in
possession of the Premises or has unsatisfied obligations hereunder to Landlord,
which deposit the Landlord may apply from time to time against outstanding
obligations of Tenant hereunder. Each time that the monthly installment of Base
Rental shall increase, Tenant shall promptly pay Landlord as additional Security
Deposit the amount of any increase in such Base Rental, said additional sums to
be added to the Security Deposit held hereunder. Tenant shall have no right to
require the Landlord to so apply said Security Deposit, nor shall Tenant be
entitled to credit the same against rents or other sums payable hereunder. If
and to the extent that Landlord makes such use of the Security Deposit, or any
part thereof, the sum so applied by Landlord shall be restored to the Security
Deposit by Tenant upon notice from Landlord, and failure to pay to Landlord the
amount to be so restored (within the grace period applicable to rents hereunder)
shall be a default hereunder giving rise to all of the Landlord's rights and
remedies applicable to a default in the payment of rent. Any portion of said
Security Deposit which has not been applied as aforesaid by Landlord shall be
repaid by Landlord to Tenant after the end of the term and any extensions
hereof, or as soon thereafter as all obligations of Tenant under this Lease have
been performed in full. Upon any conveyance by Landlord of its interest under
this Lease the Security Deposit may be turned over by the Landlord to Landlord's
grantee or transferee, and upon any such delivery of the Security Deposit,
Tenant hereby releases Landlord herein named of any and all liability with
respect to the Security Deposit, its application and return, and Tenant agrees
to look solely to such grantee or transferee, and it is further understood that
this provision shall also apply to subsequent grantees and transferees.

            6. Net Lease. It is the intention of the parties hereto that this is
a net lease and that all costs of ownership, maintenance and use of the Premises
shall be paid by Tenant in addition to the fixed rent specified above and other
sums payable by Tenant hereunder (each of which shall be treated as Rental, for
non-payment of which Landlord shall have all rights which Landlord would have
for non-payment of fixed rent hereunder), provided, however, that Landlord shall
be responsible for maintenance and repair of structural portions of the Building
in accordance with Section 7(b) hereof. Tenant shall pay to or on behalf of
Landlord, through the term of this Lease, the rent and other payments hereunder,
free of any charges, assessments, impositions or deductions of any kind, all of
which Tenant shall pay or discharge, without abatement, deduction or set off,
and Landlord shall not be required to make any payment of any kind whatsoever
hereunder (whether due to circumstances now existing or beyond present

                                       3
<PAGE>

contemplation of the parties), except as herein otherwise set forth. The rights
of the parties in the event of a casualty to the Premises shall be governed by
Section 14 hereof.

            7. Tenant's Covenants. Tenant further covenants and agrees as
follows:

               (a) To maintain the Premises including the doors and windows
thereof in good repair, condition and order in accordance with good maintenance
practices; and to yield peaceable possession to Landlord of the Premises at
termination or expiration of this Lease Agreement free of all tenants and
occupants in as good repair and condition as at occupancy by Tenant or may be
put thereafter except for ordinary wear and tear, obsolescence, and damage
caused by fire (unless caused by Tenant's negligence or default and not insured
against or required to be insured against hereunder) or the elements.

               (b) To comply fully with any applicable statutes, ordinances, and
lawful regulations, rules or orders pertaining to the Premises and to the
activities conducted thereon, to comply with all applicable rules or conditions
reasonably imposed with respect to the Premises by any insurance carrier, and to
prevent the existence of any nuisance, or the violation of any statute,
ordinance or valid rule, order or regulation with respect thereto and to save
Landlord harmless from any failure to do so.

               (c) To keep the Building insured to the extent of building
replacement costs, against loss or damage by fire, windstorm, hail, explosion
and the other risks included in extended coverage policies from time to time,
subject, however to a "deductible" clause in the amount of $50,000 or such other
amount as Tenant shall reasonably request and Landlord shall approve, which
approval shall not be unreasonably withheld or delayed; all of such policies
shall name as insured Landlord, any first mortgagee of the Premises and Tenant,
as their respective interests may appear and shall provide that they may not be
cancelled without at least fifteen (15) days prior written notice to Landlord
(provided, that such additional notice does not result in the imposition of
additional premiums or charges by such insurer). Tenant agrees to furnish
Landlord with a certificate by the insurer as to the existence thereof, together
with a copy of such policy. Tenant may procure such insurance under a so-called
blanket policy insuring other locations of the Tenant, provided however, that
such policy shall provide on its face that such portion of the face amount as is
required by this Lease Agreement is payable with respect to covered loss
relating to the Premises and is not affected by losses on other premises.

               (d) To the fullest extent permitted by law, to indemnify Landlord
fully against and to save Landlord harmless from loss, liability, costs,
expense, attorney's fees and court costs, arising directly or indirectly from
any claim or lawsuit by any person, firm, corporation, association or
governmental agency or authority whomsoever, including (but not limited to)
Tenant's officers, agents, employees or invitees, for damages assertedly
sustained to person or property by reason of any activity conducted by Tenant
upon the Premises, or of any breach by Tenant, its officers, agents, employees,
or invitees of the terms, provisions and conditions of this Lease Agreement, or
occurring upon the Premises or areas controlled by the Tenant by reason of the
conduct of the Tenant, its officers, agents, employees and invitees, regardless
of the merit or lack of merit of any such claim or lawsuit, of the fault or lack
of fault on the part of Landlord and regardless of the amount of insurance
carried; and further, to procure and keep in force, at

                                       4
<PAGE>

Tenant's sole expense, public liability insurance covering the Premises, with
minimum limits of at least $5,000,000.00 for the death of or bodily injury to
any one person, and $5,000,000.00 for the death of or bodily injury to any
number of persons resulting from the same event, and of $3,000,000 for property
damage naming Landlord, any first mortgagee of the Premises and Tenant as
insureds, as their respective interests may appear, provided that if greater
coverage limits are normally carried under similar circumstances, Tenant agrees
to increase such coverage limits appropriately.

               (e) To use its best efforts to prevent the filing or imposition
of any lien of any kind whatsoever upon or against the Premises based upon or
arising out of Tenant's actions, except by Landlord or with Landlord's prior
written consent and in the event of the filing or imposition of any such lien,
to discharge same or to obtain a surety bond sufficient to discharge same within
30 days following the date of any such filing or imposition.

               (f) To permit Landlord to enter the Premises during normal
business hours and, subject to Tenant's reasonable security and confidentiality
requirements, where such entry will not unreasonably disturb or interfere with
Tenant's use of the Premises and the operation of Tenant's business, to examine,
inspect, provide Services or make repairs, replacements, changes or alterations
as set out in this Lease Agreement, and to take such steps as Landlord may
reasonably deem necessary for the safety, improvement or preservation of the
Premises. Landlord shall give reasonable notice to Tenant prior to any such
entry, except in the case of an emergency, but no such entry shall constitute an
eviction or entitle Tenant to any abatement of Rental.

               (g) In the event that Tenant shall fail to perform any act
required by the foregoing covenants and such failure shall continue for a period
of 30 days after notice thereof from Landlord, Landlord may (but shall not be
obligated to do so) perform such act without waiving or releasing Tenant from
any of its obligations with respect thereto. Landlord shall be entitled to
recover from Tenant all sums paid or costs incurred in performing such acts on
demand.

            8. Landlord's Covenants. The Landlord hereby represents, warrants,
covenants and agrees as follows:

               (a) That Landlord has good and marketable title to the Premises,
free and clear of all liens and encumbrances that would materially interfere
with Tenant's intended use of the Premises; as of the date hereof, title to the
Premises is adequately insured with a reputable title insurance company under a
policy in form and amount as reasonably determined by Landlord; and Landlord has
full right and authority to lease the Premises and to carry out its obligation
under this Lease Agreement.

               (b) To maintain all structural portions of the Premises including
foundations, roofs, exterior walls, structural members and other supporting
structures, in. good repair, condition and order; provided, however, that
Landlord's responsibility for repair and maintenance of roofs shall exclude
responsibility for repair of (i) leaks occurring by reason of roof penetrating
structures installed or constructed by Tenant after the Commencement Date; and

                                       5
<PAGE>

(ii) isolated minor leaks properly repaired by simple patching procedures (as
opposed to a leak or series of leaks which properly require replacement or
restoration of all or any portion of a roof).

               (c) To give Tenant prompt notice of the name and mailing address
of any mortgagee or holder of a first mortgage lien with respect to the Premises
and of any change therein.

            9. Subletting. Subject to all of the provisions of this Lease
Agreement, all or any portion of the Premises may be sublet by Tenant with the
consent of Landlord, which consent shall not be unreasonably withheld or
delayed; but Tenant shall have no right to assign this Lease Agreement nor any
of its rights hereunder (other than assignment to an entity controlling,
controlled by or under common control with Tenant or pursuant to the sale of the
entire business and assets of the division of Tenant occupying the Premises
provided, however, that without the consent of Landlord no such assignment shall
relieve Tenant of liability hereunder), nor may same be assigned or passed to
another by operator of law, and any attempt to so assign, without the express
prior consent of Landlord, shall be utterly void. Tenant further agrees to
promptly provide Landlord with the name and address of the sublessee and a
description of the terms of the sublease arrangement. Tenant shall be entitled
to retain fifty percent (50%) of any premium over the Rental provided hereunder
which it receives under any such sublease.

            10. Signs. Tenant shall be entitled to erect reasonable ground and
building signs, subject to approval of Landlord, which shall not be unreasonably
withheld. All signs installed by Tenant shall comply with all requirements of
appropriate governmental authorities, and all necessary permits or licenses
shall be obtained by Tenant. Tenant shall maintain all signs in good condition
and repair at all times, and shall save Landlord harmless from injury to person
or property, arising from the erection and maintenance of said signs. Upon
vacating the Premises, Tenant shall remove all signs and repair all damage
caused by such removal.

            11. Alterations and Improvements by Tenant.

               (a) Tenant shall have the right during the continuance of this
Lease Agreement to make such alterations, changes and improvements to the
Premises as may be proper and necessary for the conduct of Tenant's business and
for the full beneficial use of the Premises. Tenant shall not make any
structural change in the Premises without first having obtained Landlord's
written consent thereto, without limitation Landlord may condition any such
consent by reserving the right to require the Premises to be restored to the
same condition they were in prior to the making of any such structural change.
Tenant shall pay all costs and expenses of such alterations, changes, and
improvements, shall make the same in a good and workmanlike manner, and in
accordance with all applicable laws, codes, and building regulations, and shall,
prior to the making of such alterations, changes, and improvements, assure
Landlord, in form satisfactory to Landlord, that payment for the same will be
made by Tenant. Tenant hereby completely and fully indemnifies Landlord against
any Mechanic's Liens or other liens or claims in connection with the making of
such alterations, changes, and improvements. Any liens arising out of such
alterations, changes, and improvements shall be discharged of record by Tenant
within thirty (30) days after the same have been filed. Tenant shall pay any and
all taxes relating to its personal property and business

                                       6
<PAGE>

               (b) Except as otherwise provided, all signs, furnishings, trade
fixtures and other removable equipment installed in the Premises by Tenant and
paid for by Tenant shall remain the property of Tenant and shall be removed by
Tenant upon the termination of this Lease Agreement provided that any of such as
are affixed to the Premises and require severance shall be removed at Tenant's
cost, and Tenant shall immediately repair any damage caused by such removal.

            12. Waiver of Subrogation. Each of Landlord and Tenant hereby
releases the other from any and all liability or responsibility to the other or
anyone claiming through or under them by way of subrogation or otherwise for any
loss or damage to property caused by fire or any other perils insured or
required to be insured against in policies of insurance covering such property,
even if such loss or damage shall have been caused by the fault or negligence of
the other party, or anyone for whom such party may be responsible, including any
sub-tenants or other occupants of the Premises; provided, however, that this
release shall be applicable and in force and effect only to the extent that such
release shall be lawful at that time and in any event only with respect to loss
or damage occurring during such times as the releasor's policies shall contain a
clause or endorsement to the effect that any such release shall not adversely
affect or impair said policies or prejudice the right of the releasor to recover
thereunder and then only to the extent of the insurance proceeds payable under
such policies. Each of Landlord and Tenant agrees that it will request its
insurance carriers to include in its policies such a clause or endorsement. If
extra cost shall be charged therefor, each party shall advise the other thereof
and of the amount of the extra cost, and the other party, at its election, may
pay the same, but shall not be obligated to do so. If such other party fails to
pay such extra cost, the release provisions of this paragraph shall be
inoperative against such other party to the extent necessary to avoid
invalidation of such releasor's insurance.

            13. Subordination.

               (a) Tenant, upon demand by Landlord, agrees to give a waiver of
priority of Tenant's lien arising by virtue of the within leasehold estate,
thereby subordinating Tenant's lien in favor of any mortgage loan, any mortgage
lien, or any refinancing or replacing of a mortgage loan that Landlord may
determine necessary or desirable from time to time, which election may be
changed from time to time. Tenant agrees to execute such instruments as may be
required by any such lending institution or prospective first mortgagee in order
to effectuate such waiver of priority and subordination of Tenant's lien and
such certificates as to the status of this Lease Agreement and other matters as
such mortgagees shall reasonably require. Tenant shall be bound by and observe
all conditions of said mortgage which shall require the giving of reports and
copies of notices to any such mortgagees, as well as those which afford such
mortgagees the opportunity to cure any default of Landlord hereunder and,
subject to paragraph (b) below, to take possession of the Premises without
liability for any default of the Landlord occurring prior thereto or which
cannot reasonably be cured by such mortgagee not be subject to any offset or
defenses on account thereof nor bound by any prepayment of rent beyond the then
current period. In the event any proceedings are brought for foreclosure, or in
the event of the exercise of the power of sale under any mortgage or deed of
trust, Tenant shall attorn to the purchaser in any such foreclosure or sale and
recognize such purchaser as landlord under this Lease Agreement.

                                       7
<PAGE>

               (b) Upon the request of Tenant, Landlord shall procure from any
such lending institution or mortgagee an agreement in writing, which shall be
delivered to Tenant, providing in substance that so long as Tenant shall
faithfully discharge the obligations on its part to be kept and performed under
the terms of this Lease Agreement, Tenant's tenancy will not be disturbed nor
this Lease Agreement affected by any default under such mortgage, and Tenant
agrees that this Lease Agreement shall remain in full force and effect even
though default in the mortgage may occur.

            14. Limitation of Landlord Liability.

               (a) If Landlord shall fail to perform any covenant term or
condition of this Lease Agreement upon Landlord's part to be performed and, as a
consequence of such default, Tenant shall recover a money judgment against
Landlord, such judgment shall be satisfied only out of the interest of Landlord
in the Premises or mortgage proceeds therefrom and Landlord shall not be liable
for any deficiency. It is understood and agreed that in no event shall Tenant
have any right to levy execution against any property of Landlord other than its
interest in the Premises as hereinbefore expressly provided. Upon receipt of
notice to do so from any first mortgagee of the Premises, Tenant agrees to give
written notice to such mortgagee in the event of any default hereunder by
Landlord.

               (b) To the fullest extent permitted by law, Tenant hereby agrees
that Landlord shall not be liable for any claim for damage to person or property
sustained by Tenant or any person claiming through Tenant resulting from any
accident or occurrence in, about, or upon the Premises unless due to the fault
or negligence of Landlord and Landlord's failure to make such repairs as it is
obligated to make within a reasonable period after notice from Tenant of the
need for such repairs. Said waiver shall include claims for unforeseen acts or
events resulting in damage or injury to person or property sustained by Tenant
or any person claiming through Tenant.

               (c) Landlord shall not be deemed to be in default of its
obligations under this Lease Agreement unless Landlord or any mortgagee of which
Tenant has been given notice pursuant to Section _______ shall have received
notice thereof and such default shall continue uncured for a period of thirty
(30) days following receipt of such notice. No performance by any such mortgagee
of Landlord's obligations or exercise of its rights, undertaken in a
commercially reasonable manner, shall subject such mortgagee to any liability
under this Lease Agreement.

            15. Casualty to Premises.

               (a) If, during the term hereof, the Premises shall be destroyed
or so damaged by fire or other casualty as to be unfit, in whole or in part, for
occupancy and such destruction or damage can reasonably be repaired to
substantially the same form and condition and with substantially the same
materials as before such destruction or damage, within nine (9) months following
the date thereof, then Tenant shall not be entitled to surrender possession of
the Premises nor shall Tenant's liability to pay rent under this Lease Agreement
cease without the

                                       8
<PAGE>

mutual consent of the parties hereto. In the event of any such destruction or
injury, Landlord shall repair the same with all reasonable speed and shall
complete such repairs within nine (9) months from the date of such damage or
destruction. If during such period Tenant shall be deprived of the use of all or
any portion of the Premises, a proportionate allowance shall be made to Tenant
from the Rental corresponding to the time during which and to the portion of the
Premises of which Tenant shall be so deprived.

               (b) If such destruction or injury cannot reasonably be repaired
to such former condition within nine (9) months from the date of such
destruction or damage, Landlord shall notify Tenant within sixty (60) days after
the happening of such destruction or damage whether or not Landlord will repair
or rebuild. If Landlord shall elect to repair or rebuild, Landlord shall specify
the time within which such repairs or reconstruction will be completed, and
Tenant shall have the option, exercisable within thirty (30) days after the
receipt of such notice, to elect either to terminate this Lease Agreement and
any further liability hereunder or to extend the term of the Lease Agreement (at
the rental in effect immediately preceding expiration of the normal term hereof)
by a period of time equivalent to the time from the happening of such
destruction or injury until the Premises are restored to such former condition.
In the event Tenant elects to extend the term of the Lease Agreement, Landlord
shall restore the Premises to such former condition within the time specified in
such notice, and Tenant shall not be liable to pay Rental for the period from
the time of such destruction or injury until the Premises are so restored to
such former condition.

               (c) In the event that Landlord does not elect to repair or
rebuild the Premises pursuant to paragraph (b) above, then Tenant may at its
option: (i) terminate this Lease Agreement and any further liability hereunder;
or (ii) continue this Lease Agreement with the Rental adjusted to reflect the
diminution in the value of the Premises effected by such destruction or damage,
effective as of the date of such destruction or damage after such
reconstruction.

               (d) In the event of any such destruction or damage, Tenant shall
be entitled to reduction or abatement of Rental only as provided in this Section
14; Tenant shall not be entitled to any reduction or abatement in Rental
hereunder if any such damage or destruction is caused by an act or omission of
Tenant, its officers, agents, employees or invitees except to the extent that
Landlord shall be insured against same and receive the proceeds of such
insurance. Landlord shall have no liability to Tenant by reason of any injury to
or interference with Tenant's business or property arising from any such
destruction or damage unless caused by an act or omission of Landlord. Landlord
shall in no event be liable for any such injury or interference resulting from
the making of any repairs to the Premises undertaken by Landlord in good faith.

            16. Condemnation.

               (a) In the event that the entire Premises shall be taken by
condemnation or right of eminent domain, this Lease Agreement shall terminate as
of the day possession shall be taken by the taking authority, and Landlord and
Tenant shall be released from any further liability hereunder thereafter
accruing.

               (b) In the event that only a portion of the Premises shall be
taken by

                                       9
<PAGE>

condemnation or right of eminent domain and the portion so taken renders the
balance unsuitable for the purpose of this Lease Agreement, the Tenant may, at
its option, elect to terminate this Lease Agreement effective as of the day
possession shall be taken, provided thirty (30) days notice of such termination
is given. If, in such case, this Lease Agreement is not terminated, Landlord
may, at its option restore the Premises with reasonable speed to an
architectural unit as nearly like its condition prior to such taking as shall be
practicable, and if during and/or after the work of restoration, Tenant is
deprived of the use of all or a part of the Premises, an appropriate reduction
of Rental, depending upon the time during which and the portion of said Premises
of which Tenant is so deprived, shall be granted. In the event Landlord elects
not to so restore the Premises, then Tenant may at its option: (i) terminate
this Lease Agreement and any further liability hereunder; or (ii) continue this
Lease Agreement with the Rental adjusted to appropriately reflect the diminution
in value of the Premises effected by such taking, effective as of the date
thereof.

               (c) All damages awarded in connection with the taking of the
Premises, whether allowed as compensation for diminution in value to the
leasehold or to the fee of the Premises, shall belong to the Landlord.
Notwithstanding the foregoing, Tenant shall be entitled to make a separate claim
for damage to merchandise and moveable trade fixtures, and removal,
re-installation, and moving expenses, provided it does not reduce the award
payable to Landlord.

            17. Default.

               (a) If: (1) there be default in payment of any Rental which,
shall continue for a period of ten (10) days following receipt by Tenant of
notice thereof from Landlord; or (.ii) there shall be default in any other of
Tenant's obligations hereunder or if the Premises be abandoned or vacated by
Tenant, and if such default or condition shall continue for a period of thirty
(30) days following receipt by Tenant of notice from Landlord to make good such
default or correct such condition; or (iii) any proceedings under the present or
any future Bankruptcy Act be instituted by or against Tenant, or any receiver or
trustee be appointed for or ordered to dispose of Tenant's business or property,
or if Tenant makes any assignment or conveyance for benefit of creditors and if
any such proceeding instituted against Tenant shall not be dismissed within 20
days following the date of such institution; then, in such event Landlord shall
have the right, immediately or at any time thereafter, to enter upon the
Premises in the name of the whole and repossess the same as if its former estate
and expel Tenant and all those claiming by, through or under it, and remove
their goods and effects (forcibly if necessary) and store the same on behalf of
Tenant without being deemed guilty of any manner of trespass and without
prejudice to any remedies which might otherwise be used for arrears of rent or
other default hereunder and upon entry as aforesaid this Lease Agreement shall
be terminated. Landlord, at its election, may effect such termination by written
notice to Tenant to that effect, which shall have the same force as an entry for
breach as provided in this Section 16. In case of such termination, Landlord
shall become entitled to receive from Tenant, and Tenant shall pay to Landlord
on demand, as initial liquidated damages, a sum equal to the amount by which the
sum of the rent and other payments called for hereunder for the remainder of the
term exceeds the fair rental value of the Premises for the remainder of the
term. Further, Tenant shall, on demand of Landlord, from time to time indemnify
Landlord against all loss of rent, other payments and damages, however caused,
which it may incur by reason of such termination during the remainder of the
term, first giving credit to

                                       10
<PAGE>

any payments made by Tenant to Landlord on account of initial liquidated damages
as aforesaid. In computing such damages there shall be added such reasonable
expenses as Landlord may incur in connection with such termination and/or
reletting, such as legal expenses, brokerage, expenses for keeping the Premises
in good order and for preparing the same for reletting and expenses and/or
decorations in the Premises as may be necessary for the purpose of reletting.
Landlord shall also have the right to pursue such other rights and remedies as
may be allowed at law or equity against Tenant, and any and all other parties
who may be liable. All such remedies shall be cumulative. Provided, however, if
any such default be under clause (ii) above and it would take more than thirty
(30) days to cure the same, Landlord shall not forfeit the lease created hereby,
enter upon the Premises or exercise any of the other remedies herein provided
for such default if Tenant begins the cure thereof within such period and
pursues same with reasonable due diligence to completion.

            18. Quiet Enjoyment. The Landlord covenants and agrees with Tenant
that as long as the Tenant keeps and performs all of the covenants and
conditions to be performed by Tenant hereunder, during the term of this Lease
Agreement Tenant shall have quiet and undisturbed and continued possession of
the Premises, free from any claims against the Landlord and all persons claiming
under, by or through the Landlord.

            19. General Provisions. (a) Words of any gender used herein shall be
construed to include any other gender, and words in the singular number shall be
held to include the plural, unless the context otherwise requires, (b) the terms
and provisions of this Lease Agreement shall inure to the benefit of and be
binding upon the parties hereto and their respective successors, permitted
assigns and legal representatives; (c) the headings used herein are for
reference purposes only and do not affect the meaning or construction hereof;
(d) this Lease Agreement may not be altered or amended and no waiver of any of
the provisions hereof shall be effective except by an instrument in writing
signed by both parties hereto; (e) all notices, consents, waivers or demands
hereunder shall be in writing and shall be delivered or mailed by Registered or
Certified mail, postage paid, to the party to whom given at the address set
forth above or at such other address as such party may specify in accordance
with this clause; (f) if any provision of this Lease Agreement shall be held to
be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions of this Lease Agreement shall not in any way be
affected or impaired thereby; (g) this Lease Agreement shall be governed by and
construed in accordance with the laws of the Commonwealth of Massachusetts; (h)
each of the parties represents and warrants to the other that it has not dealt
with any broker or finder in connection with this Lease Agreement and agrees to
indemnify and hold the other harmless from and against any claims, liabilities
or losses (including attorney's fees) arising out of a breach of this warranty;
(i) Landlord and Tenant shall each have the right to contest in good faith the
validity or amount of any tax, assessment, license fee, excise fee and other
charge for which it is responsible under this Lease Agreement provided that no
contest by Tenant may be undertaken unless tenant shall, upon Landlord's
request, deposit with Landlord adequate and sufficient security against any loss
or damage which may ensue or involve the reasonable possibility of forfeiture,
sale or disturbance of Landlord's interest in the Premises and that upon the
final determination of any contest by Tenant, Tenant shall immediately pay and
satisfy the amount found to be due, together with any costs, penalties and
interest; (j) in any case where either party hereto is required to do any act,
other than the making of any payment of Rental, the time for performance

                                       11
<PAGE>

thereof shall, be extended for a period equal to any delay caused by or
resulting from any act of God, war, civil commotion, fire, casualty, labor
difficulties, shortages of labor, materials or equipment, governmental
regulations or other causes beyond such party's reasonable control, to the
extent that the performance of such obligation was actually prevented thereby;
and (k) this instrument constitutes the entire agreement between the parties
relating to the subject matter hereof and supercedes all prior negotiations,
contracts or understandings.

                  [Remainder of Page Left Intentionally Blank]

                                       12
<PAGE>

                             Signature Page to Lease
                                 (Sagamore Road)

EXECUTED as a sealed instrument as of the date first hereinabove stated.

                                    LANDLORD

                                    SPI-TRUST

                                    By:   /s/Roger G. Little
                                         ---------------------------------------
                                         Roger Little, Trustee
                                         and not individually

                                    TENANT

                                    SPIRE CORPORATION

                                    By:   /s/ Gregory G. Towle
                                         ---------------------------------------
                                         Gregory G. Towle
                                         Treasurer

                                       13

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