Intimation for Closure of Trading Window

Date: 28-09-2026 BSE Limited P J Towers, Dalal Street, Fort, Mumbai – 400001 BSE Script Code: 531471 Sub: Intimation for Closure of Trading Window Dear Sir/Madam, Pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015, (as amended) and the Company’s Code of Conduct for Prevention of Insider Trading, we wish to inform you that the trading window of the Company will remain closed for the purpose of consideration of Unaudited Financial Results for the quarter and Half Year ended September 30, 2026 (“Results”) for which trading window is required to be closed from Thursday, October 01 2026 till 48 hours after the date of the Board Meeting wherein the results would be considered. The date of the Board meeting will be intimated in due course. During the period of Closure of the Trading Window, all directors, Designated Employees, Insiders, and their immediate relatives will not enter into any transaction involving the securities of the Company. Accordingly, all Designated Persons as per the Company's Insider Trading Code have been advised not to trade in the securities of the Company during the aforesaid period of closure of Trading Window. The Trading window will open 48 hours after the announcement/declaration of the Unaudited financial results for the quarter ending on September 30, 2026 to the stock exchanges. The date of the Board Meeting shall be intimated to you separately. Thanking You, For Duke Offshore Limited Mr. Ashutosh Janak Kumar Thakar Additional Director DIN: 10251729 DUKE OFFSHORE LIMITED CIN: L45209MH1985PLC038300 REGISTERED OFFICE: 3A, 3rd Floor, Mansionz One, Plot No 260 265, Linking Road, Bandra (W), Shopper Stop, Mumbai- 400050. CONTACT DETAILS: Email: info@dukeoffshore.com | Website: www.dukeofshore.com