Giving guarantees/indemnity/ becoming a surety for third party

Coromandel International Limited Corporate Office: Olympia Terraces, 15B SP, SIDCO Industrial Estate, Guindy, Chennai – 600032, Tamil Nadu, India CIN: L24120TG1961PLC000892 Tel: 91-44-42525300 E-mail: mail@coromandel.murugappa.com Website: www.coromandel.biz September 16, 2026 Ref. No.: 2026-27/038 National Stock Exchange of India Limited BSE Limited, Exchange Plaza, 5th Floor, Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Dalal Street, Bandra (E), Mumbai 400 051 Mumbai 400 001. Symbol: COROMANDEL S c r i p C o d e : 5 0 6 3 9 5 Dear Sirs, Sub : Disclosure under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulation, 2015, as amended ("SEBI Listing Regulations") – Issuance of Corporate Guarantee In furtherance to our letter ref no. 2026-27/006 dated May 7, 2026 and pursuant to Regulation 30 and other applicable provisions of the SEBI Listing Regulations, we wish to inform that the Company had issued corporate guarantee in favour of Citibank N.A towards the working capital facility for Baobab Mining & Chemicals Corporation, Senegal, a Subsidiary Company. The details required under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with the SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 are enclosed as Annexure A. We kindly request you to take the above submission on record. Thanking you, Yours truly, For Coromandel International Limited B Shanmugasundaram Company Secretary & Compliance officer Enclosure: As Above. Coromandel International Limited Corporate Office: Olympia Terraces, 15B SP, SIDCO Industrial Estate, Guindy, Chennai – 600032, Tamil Nadu, India CIN: L24120TG1961PLC000892 Tel: 91-44-42525300 E-mail: mail@coromandel.murugappa.com Website: www.coromandel.biz S. No. Particulars Details 1. Name of party for which such Baobab Mining & Chemicals Corporation, S.A., guarantees or indemnity or surety was Senegal (BMCC), a Subsidiary of the Company given; 2. Whether the promoter/ promoter Coromandel Chemicals Limited (CCL) is a wholly group/ group companies have any owned subsidiary (WOS) of the Company and interest in this transaction? If yes, forms part of our Promoter Group. The nature of interest and details thereof investments in BMCC are held through CCL and and whether the same is done at the proposed transaction is at arm’s length “arm’s length”; basis. 3. Brief details of such guarantee or Baobab Mining & Chemicals Corporation, S.A., indemnity or becoming a surety viz. Senegal (BMCC) is availing working capital brief details of agreement entered (if Facility of USD 14.09 Million (equivalent to *XOF any) including significant terms and 7,867.71 million) from Citibank N.A., for which conditions, including amount of the company had issued a corporate guarantee guarantee; of USD 15.5 Million (being 110% of Working Capital Facility equivalent to *XOF 8654.48 million). 4. Impact of such guarantees or The Corporate Guarantee provided by the indemnity or surety on listed entity. Company to secure the Facility to be availed by BMCC will be a contingent liability of the Company to the extent of facility to be availed by the BMCC. The Company may be required to pay under the Guarantee on failure of the BMCC in repaying the working capital to be availed. The liability of the Company under the Corporate Guarantee shall not exceed USD 15.5 Million (110% of Working Capital Facility equivalent to *XOF 8654.48 million). *Exchange reference rate has been taken as of today (i.e., 16-09-2026)