system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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be in writing addressed as follows or to such other address designated by notice in writing: Page 18 of 31 Source: FUELCELL ENERGY INC, 8-K, 11/6/2019 ExxonMobil: ExxonMobil Research and Engineering Company 1545 Route 22 East Annandale, NJ 08801-0900 Attention: Timothy Barckholtz, Senior Scientific Advisor Email: tim.barckholtz@exxonmobil.com FCE: FuelCell Energy, Inc. 3 Great Pasture Road Danbury, CT 06810 Attention: Anthony Leo, Executive Vice President Email: tleo@fce.com With a copy to: FuelCell Energy, Inc. 3 Great Pasture Road Danbury, CT 06810 Attention: Legal Department Such notice, demand, request, or other communications will be deemed to have been sufficiently given by and will be effective upon the earliest of: (a) delivering the same to a reputable courier service that requires a signature upon delivery; (b) mailing the same by registered or certified first-class mail, postage prepaid, return receipt requested; (c) if an e-mail is provided, then by e-mail with receipt confirmation followed by mailing the same or (d) actual receipt by the addressee. ARTICLE 17 - COMPLIANCE 17.01 Business Standards. The Parties have established and maintain standards, policies, and/or guidelines ("Policies") applicable to lawful and ethical conduct when conducting their business activities. Upon written request, a Party will provide to the other Party a copy of, or electronic access to, such Policies. The Parties agree to comply with such Policies when conducting activities under this Agreement. These Policies pertain to, but may not be limited to, gifts/entertainment/and other things of value and drugs and alcohol. These Policies are communicated to the Parties' employees, along with an expectation that the employees will comply with these Policies. 17.02 Compliance with Laws. All actions by each Party related to this Agreement will comply with applicable laws and regulations. Notwithstanding anything in this Agreement to the contrary, no provision will be interpreted or applied so as to require a Party or its Affiliates, to do, or to refrain from doing, anything which would constitute a violation of, or be penalized by, any applicable laws and regulations or result in a loss of economic benefit under such laws or regulations. 17.03 Export Control and Trade Sanctions. Neither Party will furnish, deliver, or release the technology, services, software, or commodities made available to it hereunder to any individual, entity, or destination, or for any use, except in full accordance with all applicable laws, regulations, and requirements of the United States with regard to export control and trade sanctions. Both Parties agree and understand that each will be responsible for ongoing compliance with all such applicable laws, regulations, and requirements. It will be a material breach if a Receiving Party takes any action or uses any of a Disclosing Party's information in any manner which would violate United States laws, regulations, or requirements restricting the export, re-export, transfer or release to certain entities or destinations, including to persons within the Receiving Party or its Affiliates, or to unrelated Third Parties. Page 19 of 31 Source: FUELCELL ENERGY INC, 8-K, 11/6/2019 ARTICLE 18 - RECORDS AND AUDIT 18.01 Recordkeeping. FCE will keep, or cause to be kept, true books, records, and accounts in accordance with Generally Accepted Accounting Principles and containing all information necessary for the accurate determination of all amounts payable to FCE under this Agreement, and any other obligations under this Agreement. Such books, records and accounts will be maintained for a period of at least three (3) years following the termination or expiration of this Agreement, provided there are no pending disputes between the Parties. In the case of a dispute, the books, records, and accounts will be maintained for one (1) year following resolution of such dispute. 18.02 Audit Rights. At the request of ExxonMobil, FCE will permit, at reasonable intervals and during regular business hours, during the Term of this Agreement and at least three (3) years thereafter, but no more than once per fiscal year, an independent certified public accounting firm of nationally recognized standing selected by ExxonMobil (and approved by FCE, which approval will not be unreasonably withheld) to inspect, during regular business hours, such books, records, and accounts and any part of the applicable operations and facilities of FCE relevant to this Agreement, and to have access to FCE's knowledgeable personnel, as may be necessary to determine the completeness and accuracy of any accounting and payments required to be made under this Agreement and compliance with other terms of this Agreement, subject to the following: (a) ExxonMobil and its employees or other representatives will have the right to reproduce for its internal
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Extract the exact clause related to "Post-Termination Services" from the excerpt above.

assistant: Such books, records and accounts will be maintained for a period of at least three (3) years following the termination or expiration of this Agreement, provided there are no pending disputes between the Parties.