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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BY REPAIR OR CREDITING ALFA AESAR'S ACCOUNT FOR THE COST OF THE PRODUCT IN THE MANNER SET FORTH ABOVE SHALL CONSTITUTE THE SOLE AND EXCLUSIVE REMEDY OF DISTRIBUTOR WITH RESPECT TO ANY WARRANTY GIVEN HEREIN RELATING TO ANY PRODUCT SOLD OR DELIVERED HEREUNDER. 9.3 ALFA AESAR represents and warrants that i) the execution and delivery of this Agreement has been authorized by all requisite corporate action, ii) it is under no contractual or other obligation or restriction that is inconsistent with its execution or performance of this Agreement, iii) ALFA AESAR will not enter into any agreement, either written or oral, that would conflict with ALFA AESAR's responsibilities under this Agreement, iv) it will comply with applicable safety laws and regulations for the repackaging and storage of Products, and v) excepting such warranties provided by NTC herein, it will make no warranties or other representations of any kind about the merchantability or fitness for any particular purpose of any Products, whether used alone or in connection with any other substance. 10. Indemnification. 10.1 NTC shall protect, defend, indemnify and hold ALFA AESAR, its directors, officers, employees, and agents harmless from any and all claims, actions, causes of action, liabilities, losses, damages, costs or expenses, including reasonable attorneys' fees, which directly or indirectly arise out of or relate to i) NTC's breach of warranties in Section 9.1, or ii) NTC's gross negligence or willful misconduct arising out of its manufacture, sale or transfer of the Products to ALFA AESAR, excepting indemnification for which ALFA AESAR is obligated under 10.3. 10.2 ALFA AESAR agrees to give NTC (i) prompt written notice of any claims made for which NTC might be liable under the foregoing indemnification, and (ii) the opportunity to defend, negotiate, and settle such claims. ALFA AESAR shall provide NTC with all information in its possession, all authority, and all assistance reasonably necessary to enable the indemnifying party to carry on the defense of such suit; provided, however, that each party shall have the right, at its own expense, to retain its own counsel to defend itself in such suit. 10.3 ALFA AESAR shall protect, defend, indemnify and hold NTC, its directors, officers, employees, and agents harmless from any and all claims, actions, causes of action, liabilities, losses, damages, costs or expenses, including reasonable attorneys' fees, which directly or indirectly arise out of or relate to i) ALFA AESAR's breach of warranties in Section 9.3, (iii) ALFA AESAR's gross negligence or willful misconduct arising out of its sale or transfer of the Products to ALFA AESAR's customers, excepting indemnification for which NTC is obligated under 10.1. 10.4 NTC agrees to give ALFA AESAR (i) prompt written notice of any claims made for which ALFA AESAR might be liable under the foregoing indemnification, and (ii) the opportunity to defend, negotiate and settle such claims. NTC shall provide ALFA AESAR with all information in its possession, all authority, and all assistance reasonably necessary to enable the indemnifying party to carry on the defense of such suit; provided, however, that each party shall have the right, at its own expense, to retain its own counsel to defend itself in such suit. 7 11. Relationship and Conduct of Business. 11.1 ALFA AESAR shall use its reasonable efforts and devote such time as may be reasonably necessary to sell and promote the sale of Products within the Territory. 11.2 ALFA AESAR agrees not to manufacture, buy, sell, distribute, deal in or be the agent for any products with the specifications of any of the Products, excluding any preexisting ALFA AESAR products. 12. No Joint Venture. 12.1 This Agreement does not in any way create the relationship of franchisor and franchisee, joint venture, partnership, employment or principal and agent between ALFA AESAR and NTC. Neither party, nor any person acting on behalf of a party, is or shall be considered an employee of the other party for any reason whatsoever, and does not and shall not have any rights to, or participate in, any pension or welfare plans, or any other benefits which now or hereafter maintains for or provides to its employees. Neither party, or any person acting on behalf of a party, is or shall be deemed to be the legal representative or agent of the other party for any purpose whatsoever, and is not authorized to transact business, incur obligations, express or implied, or otherwise act in any manner, in the name or on behalf of the other party, or to make any promise,
"""

Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.

assistant: Not found.