Acquisition of 26% equity share capital of Solaris Horizon Energy Private Limited

12th August 2026 BSE Limited The National Stock Exchange of India Limited Corporate Relationship Department Listing Department Scrip Code: 532538 Scrip Code: ULTRACEMCO Sub: Acquisition of 26% equity share capital of Solaris Horizon Energy Private Limited Ref: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”) Dear Sirs, We wish to inform you that the Company has entered into Energy Supply Agreement and Share Subscription and Shareholders Agreement to acquire 26% equity shares of Solaris Horizon Energy Private Limited, a company engaged in generation and transmission of renewable energy. The acquisition is for the purposes of meeting the Company’s green energy needs, optimising energy cost and comply with regulatory requirements for captive power consumption under electricity laws. Disclosure as required under the Listing Regulations is attached as per Annexure A. The above is for your information and record. Thanking You, 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 the Target Entity, details in Solaris Horizon Energy Private Limited brief such as size, turnover etc (a subsidiary of Waaree Forever Energies Private Limited) b) Whether the acquisition would fall within The proposed acquisition is not a related party related party transaction(s) and whether transaction(s) and the promoter / promoter the promoter / promoter group / group group / group companies have no interest in the companies have any interest in the proposed acquisition. entity being acquired? If Yes, nature of interest and details thereof and whether the same is done at “arms length”. c) Industry to which the entity being Generation and transmission of renewable acquired belongs energy (solar power). d) Objects and impact of acquisition To meet the green energy needs; optimise (including but not limited to disclosure of energy costs and comply with regulatory reasons for acquisition of target entity, if requirements for captive power consumption its business is outside the main line of under electricity laws. business of the listed entity) e) Brief details of any governmental or - regulatory approvals required for the acquisition f) Indicative time period for completion of Within 180 days from the execution of Energy acquisition Supply Agreement and Share Subscription and Shareholders Agreement g) Consideration - whether cash Cash consideration consideration or share swap or any other form and details of the same h) Cost of acquisition and/or the price at Equity investment of upto Rs. 27,75,50,000/-. which shares are acquired (Rupees Twenty Seven Crore Seventy Five Lakhs Fifty Thousand Only) i) Percentage of shareholding/control 26% acquired and /or no of shares acquired j) Brief background about the entity Solaris Horizon Energy Private Limited is a acquired in terms of product /line of company having registered office at business acquired, date of incorporation, 602, Western Edge 1, Western Express history of last three years turnover, Highway, Borivali East, Mumbai 400066 and is country in which acquired entity has a special purpose vehicle (“SPV”) which shall presence and any other significant supply 91 MWp DC / 65 MW AC solar power to information (in brief) plants of Company in Chhattisgarh on captive basis from solar project located at Village Puran, Tehsil & District - Mungeli in state of Chhattisgarh. Date of incorporation: 10th December, 2025 Turnover (last three years) (Rs. in crores): Nil. Country: India 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