Outcome of Board Meeting

19th October, 2026 BSE Limited The National Stock Exchange of India Limited Corporate Relationship Department Listing Department Scrip Code: 532538 Scrip Code: ULTRACEMCO Sub: Issuance of Corporate Guarantee Dear Sirs, The Board of Directors of the Company at its meeting held today i.e. 19th October, 2026 approved issuance of Corporate Guarantee up to an amount of USD 55 mn in connection with the loan to be obtained by UHG Holdings IFSC Private Limited, an associate company. The details as required are provided in Annexure A. The meeting commenced at 12 noon and concluded at 1:40 p.m. This is for your information and records, please. Yours faithfully, For UltraTech Cement Limited Dhiraj Kapoor Company Secretary and Compliance Officer Encl: a/a Luxembourg Stock Exchange Singapore Exchange BP 165 / L – 2011 Luxembourg 2 Shenton Way, #02-02, SGX Centre 1, Scrip Code: Singapore 068804 US90403E1038 and US90403E2028 ISIN Code: US90403YAA73 and USY9048BAA18 UltraTech Cement Limited Registered Office : Ahura Centre, B – Wing, 2nd Floor, Mahakali Caves Road, Andheri (East), Mumbai 400 093, India T: +91 22 6691 7800 / 2926 7800 I F: +91 22 6692 8109 I W: www.ultratechcement.com/www.adityabirla.com I CIN : L26940MH2000PLC128420 Annexure A Sr. Particulars Details a. Name of party for which such UHG Holdings IFSC Private Limited guarantees or indemnity or surety (“UHG Holdings”) was given. b. Whether the promoter/ promoter Grasim Industries Limited (Promoter) group/ group companies have any holds 9% shareholding in UHG Holdings interest in this transaction? If yes, and Hindalco Industries Limited (Promoter nature of interest and details thereof Group) holds 50% in UHG Holdings. and whether the same is done at “arm’s length”. UHG Holdings is a related party of the Company. The transaction is undertaken on an arm’s length basis. c. Brief details of such guarantee or An irrevocable and unconditional indemnity or becoming a surety viz. corporate guarantee up to an amount of brief details of agreement entered (if USD 55 mn is being provided to UHG any) including significant terms and Holdings to pursue its business. conditions, including amount of guarantee. d. Impact of such guarantees or There is no impact on the Company, indemnity or surety on listed entity. except to the extent of the amount for which the corporate guarantee will be provided. The Corporate Guarantee constitutes a contingent liability for the Company. UltraTech Cement Limited Registered Office : Ahura Centre, B – Wing, 2nd Floor, Mahakali Caves Road, Andheri (East), Mumbai 400 093, India T: +91 22 6691 7800 / 2926 7800 I F: +91 22 6692 8109 I W: www.ultratechcement.com/www.adityabirla.com I CIN : L26940MH2000PLC128420