Closure of Trading Window from October 1, 2026 till 48 hours after approval and disclosure of Unaudited Financial Results (Standalone and Consolidated) for the Quarter and Six months ending September 30, 2026.

September 28, 2026 BSE Limited National Stock Exchange of India Limited Department of Corporate Services Listing Department Floor 25, P. J. Towers, “Exchange Plaza”, Dalal Street, C-1, Block G, Bandra – Kurla Complex, Mumbai-400 001. Bandra (E), Mumbai – 400 051. Scrip Code: 532051 Scrip Symbol: SWELECTES Dear Sir / Madam, Sub: Closure of Trading Window We would like to inform your office that, in terms of Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons adopted by the Company in pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 (as amended), the trading window for dealing with the Company’s Equity Shares by the Designated Persons [Promoters, Promoter group persons, Directors, Key Managerial Personnel, Relevant Employees (Holding and subsidiaries), Advisors, Consultants, Auditors (Statutory, Secretarial, Internal and Cost Auditors) and immediate relatives of these persons etc.] as specified in the above code of conduct shall be closed from October 1, 2026 till 48 hours after approval and disclosure of Unaudited standalone and consolidated financial results of the Company by the Board of Directors for the quarter and six months ending 30th September, 2026. The date of Board Meeting for approving the above results will be intimated in due course. We request you to kindly take on record the above compliance. Thanking you, Yours faithfully, For SWELECT ENERGY SYSTEMS LIMITED J. Bhuvaneswari Company Secretary & Compliance Officer