Pendency of Litigation(s)/dispute(s) or the outcome impacting the Company

July 15, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra Kurla Complex Mumbai – 400 001 Bandra (East), Mumbai – 400 051 Scrip Code: 542760 Symbol: SWSOLAR Sub.: Disclosure under Regulation 30 read with Para B of Part A of Schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Dear Sir/ Ma’am, Pursuant to Regulation 30 read with Para B of Part A of Schedule III of the SEBI Listing Regulations, we hereby inform you that Sterling and Wilson Solar Australia Pty Ltd (SWSAPL), a material subsidiary (step down) of the Company, has commenced arbitration proceedings by filing a Request for Arbitration against Shell New Energies Australia Pty Ltd (Shell) under the London Court of International Arbitration Rules 2020 (LCIA Rules) on July 14, 2026. The requisite details in relation to the aforesaid matter, as prescribed under SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, are enclosed herewith as Annexure A. Kindly take the same on record. Yours faithfully, For Sterling and Wilson Renewable Energy Limited Jagannadha Rao Ch. V. Company Secretary and Compliance Officer Encl: As above Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com Annexure A Sr. Particulars Details 1 Name of the Claimant Sterling and Wilson Solar Australia Pty Ltd (SWSAPL) 2 Name(s) of the Opposing party Shell New Energies Australia Pty Ltd (Shell) 3 Court / Tribunal/ Agency where litigation is Arbitral Tribunal to be formed under filed LCIA Rules 4 Brief details of dispute/ litigation SWSAPL, a material subsidiary (step down) of the Company, has commenced arbitration proceedings by filing a Request for Arbitration against Shell under the LCIA Rules on July 14, 2026 in respect of claims arising under: i. a contract between Shell (as the principal) and SWSAPL (as the contractor) for the Engineering, Procurement and Construction of Gangarri Solar Farm in Queensland, Australia; and ii. a contract between Shell (as the principal) and SWSAPL (as the contractor) for the Operations and Maintenance of Gangarri Solar Farm in Queensland, Australia. 5 Expected financial implications, if any, due Recovery of claims as described herein to compensation, penalty etc.; in the event of successful arbitration in favour of SWSAPL. 6 Quantum of claims, if any i. Scenario A: Full 120 MW with Harmonic Filters:- AUD $28,029,620.50 and USD $1,638,628, in damages under EPC contract or such other sum as the Arbitral Tribunal considers appropriate plus interest and legal costs. ii. Scenario B: Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com Reduced Capacity 95 MW without Harmonic Filters:- AUD $20,604,122.57 and USD $1,638,628, in damages under EPC contract or such other sum as the Arbitral Tribunal considers appropriate plus interest and legal costs Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com