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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or Buyer's affiliates by Seller. 3. TAXES Any tax (except income taxes), excise or other governmental charge that now or in the future may be imposed, increased or levied upon the production, value added, sale, transportation, storage, handling, delivery, use or disposal of Product sold hereunder which Seller may be required to pay, shall be paid by Buyer to Seller in addition to the purchase price. Buyer shall provide Seller, on request, with properly completed exemption certificates for any tax from which Buyer claims exemption. 4. CREDIT If Seller has reasonable grounds for insecurity with respect to the financial responsibility of Buyer, Seller may require advance cash payment or satisfactory security and may withhold Product shipments until receipt of such payment or security. Such action by Seller shall not constitute a change of payment terms hereunder. If amounts due hereunder are placed with an outside agency for collection, or if suit is brought for collection, or if collected through probate, bankruptcy or other judicial proceedings, then Buyer shall pay all costs of collection, including attorneys' fees, in addition to other amounts due. 5. SET-OFF AND RECOVERY With respect to any monetary amounts and/or product-exchange delivery imbalances due from Buyer/Buyer Affiliates to Seller/ExxonMobil Selling Affiliates, Seller/ExxonMobil Selling Affiliates may (i) set-off such monetary amounts and/or product-exchange delivery imbalances against any monetary amounts and/or product-exchange delivery imbalances owing to Buyer/Buyer Affiliates; and/or (ii) recoup such monetary amounts and/or product-exchange delivery imbalances from any amounts paid and/or deliveries made to Buyer/Buyer Affiliates by Seller/ExxonMobil Selling Affiliates. For purposes hereof, any and all agreements between Buyer and Seller, whether written or oral, shall be deemed to be part of an integrated agreement set forth herein. 6. CHANGE IN CIRCUMSTANCES In connection with any Change in Circumstances (as defined below), and without limiting Seller's other rights under this Agreement or applicable law, Seller shall have the right: (i) to terminate this Agreement and accelerate all amounts due from Buyer hereunder, making them immediately payable; (ii) to modify the payment terms hereunder; and/or (iii) to require Buyer to pay in advance for shipments hereunder. Promptly after any public announcement regarding any proposed transaction that would result in a Change in Circumstances, Buyer shall notify Seller, in writing, of the nature of such transaction, the parties thereto and the proposed date of consummation. If Seller elects to exercise any of its rights under the preceding paragraph, Seller shall so notify Buyer, in writing, within forty-five (45) days after receipt of Buyer's notice. As used above, "Change in Circumstances" means any of the following: (i) any transaction, or series of transactions, that would result in the transfer of at least twenty-five percent (25%) of the equity interest Source: WEST PHARMACEUTICAL SERVICES INC, 8-K, 1/16/2020 in Buyer (or of at least twenty-five percent 25%) of the equity interest in any business entity that owns or controls, directly or indirectly, at least fifty percent (50%) of the equity interest in Buyer ("Buyer's Parent") to a single transferee or multiple transferees under common control; (ii) any transaction that would result in Buyer's (or Buyer's Parent's) merging with one or more other entities; or (iii) any transaction not in the ordinary course of Buyer's (or Buyer's Parent's) business that calls for the sale, purchase or other transfer of one or more significant assets, including (without limitation) manufacturing facilities and ownership interests in other business entities. 7. TITLE; RISK OF LOSS Title to Product and risk of loss shall pass to Buyer at Seller's facilities upon delivery to a carrier or into Buyer's transport unless otherwise specified in the agreement. 8. LIMITED WARRANTY AND MEDICAL APPLICATIONS THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE PRODUCT DESCRIPTION HEREIN, AND SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, OF FITNESS FOR PARTICULAR USE, MERCHANTABILITY OR OTHERWISE WITH RESPECT TO PRODUCT, WHETHER USED SINGLY OR IN COMBINATION WITH OTHER SUBSTANCES OR IN ANY PROCESS, EXCEPT THAT PRODUCT SOLD HEREUNDER SHALL CONFORM TO SELLER'S STANDARD SALES SPECIFICATIONS AS OF THE DATE OF SHIPMENT. Without limiting the foregoing, Seller does not recommend nor endorse the use of Product(s) in any medical application and specifically disclaims any representation or warranty, express or implied, of suitability or fitness for use, or otherwise, with respect to Product(s)' use in any medical application. Buyer represents and warrants that no Product(s) purchased hereunder will be used in or resold into any commercial or developmental manner in connection with medical applications without Seller's prior express written acknowledgement. Further, Buyer agrees that it will make no
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Extract the exact clause related to "Minimum Commitment" from the excerpt above.