Press Release

HEGAM/SECTT/2026 September 30, 2026 To To BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block- G, Dalal Street, Mumbai - 400 001 Bandra Kurla Complex, Bandra (East), SCRIP CODE: 509631 Mumbai - 400 051 SYMBOL: HEGAM Sub: Press Release/Media Release - Replus Engitech and Indus Towers Collaborate on Energy Storage Solutions for Telecom Infrastructure Dear Sir/Madam, Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find enclosed herewith a copy of the Press Release/Media Release being issued by Replus Engitech Private Limited, a subsidiary of the Company in relation to the captioned subject. Yours truly, For HEG Advanced Materials Limited (formerly HEG Limited) Ravi Gupta Company Secretary & Compliance Officer FCS No.: 5731 Encl.: A/A Replus Engitech and Indus Towers Collaborate on Energy Storage Solutions for Telecom Infrastructure Gurugram, September 30, 2026: Replus Engitech Private Limited, a subsidiary of HEG Advanced Materials Limited (“HEGAM”) and an integrated energy storage and clean energy company, and Indus Towers Limited, one of India’s leading telecom infrastructure companies, have signed a Memorandum of Understanding (MoU) outlining the intent to explore collaboration on Battery Energy Storage System (BESS) solutions for telecom infrastructure in India. Under the MoU, Replus intends to make available dedicated BESS production capacity of 1.5 GWh over a two-year period to support the evolving energy requirements of telecom infrastructure. Replus also plans to expand its portfolio of telecom energy storage solutions, including higher-capacity battery systems, while exploring emerging technologies such as sodium-ion batteries that can enhance reliability, energy efficiency and lifecycle performance across telecom applications. Riju Jhunjhunwala, Chairman, Managing Director and CEO, HEG Advanced Materials Limited, said, “This initiative reflects the opportunity we see in building a strong, made- in-India energy storage ecosystem for critical infrastructure. Through Replus, we are building the manufacturing scale, technology capabilities and innovation platform required to address these evolving requirements and contribute meaningfully to India’s energy transition.” Hiren Pravin Shah, Managing Director & CEO, Replus Engitech Private Limited, said, “For us, this initiative goes beyond supplying batteries. It is about building the manufacturing scale and technology capabilities required to address the evolving energy needs of telecom infrastructure. Our ambition is to combine innovation, reliability and Indian engineering to create future-ready energy storage solutions.” By strengthening domestic manufacturing capabilities and advancing next-generation battery technologies, Replus aims to contribute to a more resilient indigenous energy storage ecosystem while supporting the evolving requirements of India’s telecom sector. REPLUS ENGITECH PRIVATE LIMITED GSTIN: 27AAJCR3153R1ZP Corporate Office: Registered Office: BhilwaraT owers,A-12, Sector-1, SB-701, 702 & SB-716, 7th Floor, “South Block”, Sacred World, Noida-201301, Uttar Pradesh, India Wanawadi, Pune, Maharashtra - 411040, India Tel: +91-120-4390300 Tel: 020-29996660 | Email: info@replusengitech.com Website: www.lnjbhilwara.com Website: www.replusengitech.com About HEG Advanced Materials Limited HEG Advanced Materials Ltd. is a new-age platform spanning advanced battery materials with a strong manufacturing, R&D, and innovation foundation, and also into the business of battery energy solutions & green power. Compounding on HEG’s 50+ years of expertise in graphitization and manufacturing know-how, the platform is developing a large-scale anode materials business and future material development, including silicon-based anodes. Its capabilities span research to revenue, from advanced research and product development to commercialization, serving the evolving EV, BESS, and energy-storage ecosystem. About Replus Engitech Private Limited Replus Engitech Private Limited, a subsidiary of HEG Advanced Materials Limited (an LNJ Bhilwara Group company), is an integrated energy storage and clean energy company focused on advanced battery technologies, Battery Energy Storage Systems (BESS), telecom energy solutions, and e-mobility. The company designs, manufactures, and deploys Advanced Chemistry Cell (ACC)-based lithium-ion battery systems, while offering end-to-end capabilities across system integration, EPC, O&M, and lifecycle energy asset management. Replus has deployed over 1 GWh of energy storage capacity across BESS, electric mobility, telecom power solutions, and hybrid energy applications, serving customers across diverse sectors in India. Backed by the industrial legacy of the HEG Advanced Materials Group, Replus is committed to accelerating India's clean energy transition through indigenous manufacturing, innovation, and scalable energy storage solutions. HEG Advanced Materials Ltd. Adfactors PR Indu Mehta +91120 4390007 Minakshi Hase President - Brand Communications & Chief + 91 9819800294 Sustainability Officer minakshi.hase@adfactorspr.com Indu.mehta@lnjbhilwara.com