Press Release

Ref. No: PEL 53/2026-27 Date: September 10, 2026 To To The Secretary The Manager, BSE Limited Listing Department Phiroze Jeejeebhoy Towers, National Stock Exchange of India Limited Dalal Street, Exchange Plaza, C-1, G Block, Bandra-Kurla Mumbai – 400001 Complex, Bandra (East), Mumbai – 400 051 Scrip Code: 544238 Trading Symbol: PREMIERENE Dear Sir/Madam, Sub: - Disclosure under Regulation 30 of SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015 – Press Release. Pursuant to Regulation 30 of the SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015, we hereby enclose a copy of the press release titled “Premier Energies, RCT India, part of R CT Germany to Form JV for 12 GWh BESS Manufacturing Targeting India and Global Markets” This is for your information and records. Thanking you, Yours truly, For Premier Energies Limited Hitesh Kumar Jain Company Secretary & Compliance Officer Premier Energies, RCT India, part of RCT Germany to Form JV for 12 GWh BESS Manufacturing Targeting India and Global Markets Hyderabad, 10 September 2026: Premier Energies Limited and RCT India, part of RCT Group, Germany, have entered into a binding term sheet to form a joint venture (JV) to establish a 12 GWh battery energy storage system (BESS) manufacturing facility in Telangana, marking a significant expansion of Premier Energies’ clean- energy portfolio beyond solar manufacturing. The proposed facility will be developed through Premier Energies’ subsidiary, Premier Battery Technologies Pvt. Ltd., with the first phase planned at 6 GWh. The facility is expected to cater to the rapidly growing demand for energy storage across commercial, industrial and utility-scale applications in India and international markets. The facility is also envisioned as an export-oriented manufacturing platform, with the partnership aiming to serve international markets from India. By combining Premier Energies’ manufacturing capabilities with RCT’s global energy-sector experience, engineering expertise and international supply-chain network, the partners intend to develop globally competitive BESS solutions for customers across key international markets. India’s rapid expansion of renewable energy is driving the need for large-scale energy storage to manage intermittency, enhance grid flexibility and support reliable power delivery. Against this backdrop, the partnership aims to contribute to the development of a robust domestic BESS manufacturing ecosystem while creating an export-oriented platform for India’s growing energy-storage industry. For Premier Energies, the partnership represents a strategic step in its evolution from a leading solar cell and module manufacturer into a broader clean-energy company with capabilities spanning multiple segments of the renewable energy value chain. Commenting on the partnership, Mr. Chiranjeev Saluja, Managing Director, Premier Energies Limited, said: “Energy storage is the need of the hour for the Indian power system. As India expands its renewable energy generation capacity, energy storage will play a critical role in enabling a reliable, resilient and sustainable power ecosystem. Our long-term partnership with RCT gives us access to this rapidly growing market. Our aim is to build globally competitive BESS products through this manufacturing platform in India, serving both domestic and international markets.” Mr. Sukumar Reddy Madugula, Managing Director, RCT India, said: “This latest venture to establish a state-of-the-art battery manufacturing facility is a testament to the strength of our relationship with Premier Energies. We are excited to bring our global expertise, engineering capabilities and hands-on execution strengths to India’s rapidly growing BESS sector. Together, we see a strong opportunity to build world-class energy storage capabilities in India and develop the facility as a platform to serve markets globally.” The proposed facility is expected to strengthen India’s domestic manufacturing capabilities in battery energy storage while creating a platform to address the growing requirements of renewable power developers, commercial and industrial consumers, and utility-scale projects in India and overseas. About Premier Energies Limited Premier Energies Limited is a publicly listed company and one of India’s leading integrated solar manufacturers. With more than 30 years of solar manufacturing expertise, the Company manufactures high-efficiency solar cells and modules and is expanding its integrated manufacturing capabilities across the solar value chain. The Company is known for its focus on technology innovation, sustainability and an employee-centric culture and has received Great Place to Work certification for five consecutive years. About RCT RCT Solutions Group brings more than 10 GW of expertise in setting up BESS- related projects worldwide, backed by dedicated in-house engineering and operational capabilities for gigascale battery storage development projects in Europe. This experience combines the Group’s international expertise, operational know-how, global industry relationships, and engineering and execution capabilities with strong local delivery capabilities on the ground in India. Media Contacts Premier Energies Limited Mohit Chawla Marketing & Communications Premier Energies Limited +91 70163 92138 mohit.chawla@premierenergies.com RCT Energy India Private Limited Sai Kumar Poloju Founders Office sai.poloju@rct-solutions.com +91 73824 55373