Bagging/Receiving of orders/contracts

August 29, 2026 The General Manager The Manager Corporate Relations Department Listing Department BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra-Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 500770 Symbol: TATACHEM Dear Sir/Madam, Sub.: Intimation under Regulations 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform that Tata Chemicals North America Inc. ("TCNA"), a wholly owned subsidiary of Tata Chemicals Limited, has been declared the successful bidder in the Chapter 11 bankruptcy proceedings of Searles Valley Minerals Inc. ("SVM"), USA, for the acquisition of North American soda ash customer contracts of SVM representing over half million metric tons customer orders through December 2028. This strengthens TCNA's customer portfolio by securing domestic North American customers. Thus, enhancing its ability to build long-term customer relationships and improve customer retention and supporting long-term value creation. In this regard, TCNA has entered into an Assignment and Assumption Agreement ("ASA") with SVM for the acquisition of the certain soda ash customer contracts. The completion of the transaction remains subject to the satisfaction of the conditions and other terms set out in the ASA. Further, the United States Bankruptcy Court for the District of Delaware has approved the assignment and assumption of the specified customer contracts from SVM to TCNA pursuant to the ASA. The details as required under Schedule III of the SEBI Listing Regulations read with SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 is enclosed in the Annexure A. We request you to take the aforesaid disclosure on records. This intimation is also being made available on the website of the Company at www.tatachemicals.com. Thanking you, Yours faithfully, For Tata Chemicals Limited Jeraz E. Mahernosh Company Secretary (FCS 7008) Encl: as above Annexure A Sr. No Particulars Details a. Name of the entity awarding the Searles Valley Minerals Inc. ("SVM"), USA, acting order(s)/contract(s); pursuant to and in accordance with the Order of the United States Bankruptcy Court for the District of Delaware approving the assignment and assumption of soda ash customer contracts and related contract benefits to Tata Chemicals North America Inc. ("TCNA"), a wholly owned subsidiary of Tata Chemicals Limited. b. Significant terms and conditions of TCNA has entered into an Assignment and order(s)/contract(s) awarded in brief; Assumption Agreement ("ASA") with SVM for the acquisition of North American soda ash customer contracts of SVM representing over half million metric tons customer orders through December 2028. The transaction includes the assignment of specified customer contracts and related commercial rights and remains subject to the satisfaction of customary closing conditions and other terms and conditions set forth in the ASA. The United States Bankruptcy Court for the District of Delaware has approved the assignment and assumption of the specified customer contracts from SVM to TCNA pursuant to the ASA. c. Whether order(s) / contract(s) have The customer contracts are being acquired from SVM, been awarded by domestic / USA, pursuant to an order of the United States international entity; Bankruptcy Court for the District of Delaware. d. Nature of order(s) / contract(s); Acquisition and assignment of certain soda ash customer contracts, together with related commercial rights, customer information, demand forecasts, logistics records and associated contract benefits pertaining to customers located in North America. e. Whether domestic or international; The acquired contracts relate to customers located in North America. f. Time period by which the The acquired customer contracts are expected to be order(s)/contract(s) is to be executed; serviced over the period from September 2026 through December 2028, in accordance with the respective contractual terms. g. Broad consideration or size of the Aggregate cash consideration of USD 21.16 million. order(s)/contract(s); h. Whether the promoter/ promoter group No. Neither the promoter nor the promoter / group companies have any interest group/group companies of TCL have any interest in in the entity that awarded the SVM or in the customer contracts being acquired order(s)/contract(s)? If yes, nature of under the ASA. interest and details thereof; i. Whether the order(s)/ contract(s) No. The transaction does not constitute a related party would fall within related party transaction and is therefore not covered under the transactions? If yes, whether the same is related party transaction provisions of the SEBI Listing done at “arm’s length” Regulations.