Updates

Date: September 28, 2026 To, To, General Manager The Manager Department of Corporate Services Listing Compliance Department BSE Limited National Stock Exchange of India Limited Listing Department Exchange Plaza, Plot No. C/1, Phiroze Jeejeeboy Tower, Dalal Street, G Block, Bandra - Kurla Complex, Fort Mumbai-400 001 Bandra (East), Mumbai 400 051 Scrip code: 543230 Symbol: ADVAIT Sub: Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Master Supply Agreement (“MSA”) executed between Advait Battery Ecosystems Private Limited and Hithium Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform you that ABEPL has entered into a Master Supply Agreement (“MSA”) with Hithium, a global energy storage manufacturer and BloombergNEF Tier 1 supplier, for the purchase of lithium iron phosphate (LFP) prismatic battery cells. The MSA was executed on September 18, 2026 and is structured to support the cell offtake of up to 1 GWh over the next year. Under the arrangement, Hithium will supply 314 Ah LFP prismatic battery cells to ABEPL for its upcoming cell-to-container Battery Energy Storage System (BESS) assembly facility. The agreement provides a framework for cell supply to support ABEPL’s planned 2.5 GWh annual- capacity BESS assembly facility, which is being developed to cater to utility-scale, commercial and industrial energy storage and renewable energy integration applications. The arrangement is intended to strengthen the Company’s domestic BESS manufacturing and supply-chain capabilities. We request you to kindly take the same on record. Thanking you. Yours faithfully, For Advait Energy Transitions Limited (Formerly known as Advait Infratech Limited) Deepa Fernandes Company Secretary & Compliance Officer FCS 13015 FOR IMMEDIATE RELEASE Advait Group Signs Landmark 1 GWh Cell Supply Agreement with HiTHIUM This Master Supply Agreement establishes a BloombergNEF Tier 1 partner as Advait strengthens domestic sourcing for utility-scale, commercial and industrial energy storage as for the Advait Gangad manufacturing unit Ahmedabad, India, September 18, 2026: Advait Battery Ecosystem Private Limited (“Advait Group”), a subsidiary company of BSE and NSE-listed parent company, Advait Energy Transitions Limited, announced that it has entered into a Master Supply Agreement (MSA) with HiTHIUM, a BloombergNEF Tier 1 global energy storage manufacturer, for the supply of lithium iron phosphate (LFP) prismatic battery cells. The agreement anchors cell supply for Advait’s upcoming 2.5 GWh annual capacity cell-to-container Battery Energy Storage System (BESS) assembly facility and is structured to support cell offtake of up to 1 GWh over the next year, establishing a dependable, high-volume supply chain as Advait scales domestic BESS assembly for grid-scale and commercial and industrial energy storage applications across India. Under the agreement, HiTHIUM will supply its 314 Ah LFP prismatic cells to Advait, bringing one of the most widely deployed cell platforms in global energy storage into Advait’s domestic manufacturing ecosystem as the company builds capabilities spanning module and pack assembly, container integration and system commissioning. Commenting on the agreement, Bhushan Shahane, Chief Operating Officer, Advait Battery Ecosystem Private Limited, said: “This partnership with Hithium reflects our belief in partnering with the best: the best cell technology, the best quality and the best service available in the market today. As we scale our 2.5 GWh BESS assembly capacity, a dependable, world-class cell supply chain is central to our ability to deliver cost-optimised, high-performance energy storage solutions to customers across India.” Hithium is recognised as a BloombergNEF Tier 1 global energy storage manufacturer and is among the leading energy storage battery cell manufacturers globally. The company supplies battery cells and energy storage systems for utility-scale, commercial and industrial, and residential applications across international markets. The agreement establishes Hithium as a key cell supply partner for Advait as the company builds its domestic BESS manufacturing capacity. The cell supply arrangement is expected to provide Advait with access to high-volume LFP cells as its facility progresses towards commercial production. “We partnered with Hithium because they represent the gold standard in cell manufacturing: proven quality, consistent performance and a track record with some of the world’s most demanding energy storage developers. Bringing that standard into our supply chain lets us offer the Indian market a cost-optimised solution without compromising on quality, performance or service,” Mr. Shahane added. Strengthening India’s Domestic Energy Storage Manufacturing Base Advait’s 2.5 GWh BESS cell-to-container assembly line, currently under development, is central to the company’s strategy of building an integrated, India-based battery energy storage manufacturing ecosystem. The planned capabilities span cell sourcing, module and pack assembly, container integration and system commissioning, providing an integrated manufacturing framework for BESS applications. The Hithium agreement provides a cell supply framework as Advait prepares to scale production at the facility. With an offtake structure of up to 1 GWh over the next year, the agreement aligns cell sourcing with the planned ramp-up of Advait’s domestic assembly capabilities. Advait’s collaboration with Hithium also builds on the company’s broader strategy of developing an integrated BESS supply chain through specialised technology partnerships. Advait Battery Ecosystem has already entered into a strategic collaboration with Adaptive Engineering for engineering design, Energy Management System (EMS) architecture, PLC/SCADA and system integration capabilities. With Hithium now strengthening the critical cell supply side, Advait is advancing this partnership-led ecosystem to the next level, bringing together cell sourcing, EMS and engineering expertise, module and pack assembly, container integration and system commissioning under its growing domestic BESS manufacturing platform. The facility, in Gangad, Gujarat, is scheduled to begin commercial production soon. It is being developed to serve utility-scale, commercial and industrial, and renewable integration applications as Advait expands from project-level BESS deployment towards volume manufacturing. Advait Energy Transitions Limited, the group’s listed parent company, is a Gujarat-based new & renewable energy & power company with an active portfolio spanning battery energy storage manufacturing, green hydrogen project development, electrolyser manufacturing, fuel cell manufacturing and clean energy EPC. The Hithium agreement supports the group’s broader expansion across energy transition technologies and infrastructure. About Advait Energy Transitions Limited Advait Energy Transitions Limited (AETL), formerly Advait Infratech Limited, is a publicly listed energy transition and infrastructure company headquartered in Ahmedabad, Gujarat, and listed on the National Stock Exchange (NSE) and the Bombay Stock Exchange (BSE). The company operates across power transmission infrastructure, renewable energy, Battery Energy Storage Systems (BESS), green hydrogen and clean energy technologies, with capabilities spanning EPC execution, manufacturing and advanced energy infrastructure solutions. Further information is available at www.advaitgroup.co.in. About HiTHIUM HiTHIUM is a global energy storage manufacturer recognised as a BloombergNEF Tier 1 supplier, developing and producing LFP battery cells and energy storage systems for utility-scale, commercial and industrial, and residential applications across international markets. Media contact Rutvi Sheth Kundalia Head, Investor Relations & Public Relations, Advait [Showing first 8,000 characters — download PDF for full document]