As per Attachment

(Formarly known as Steelman Telecom Private Limited) Dated: 25.09.2026 The Manager Corporate Relationship Department Bombay Stock Exchange Limited 1 st Floor, New Trading Wing, Phiroze Jeejeebhoy Tower Dalal Street, Fort, Mumbai-400001 Scrip Code: BSE: 543622 Dear Sir/Madam, Sub: Closure of Trading Window for Board Members and Designated Persons. In terms of the Company’s Code of Conduct to Regulate, Monitor and Report Trading by Insiders framed under the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations 2015 the ‘Trading Window’ for dealing in equity shares of the Company shall remain closed for all the Designated Persons and their immediate relatives with effect from October 01, 2026 till 48 hours after the declaration of Financial Results (Unaudited) of the Company for the half-year ended on September 30, 2026 to the stock exchange. Accordingly, all designated Persons and their immediate relatives have been advised not to trade in the securities of the Company during the aforesaid period of closure of trading window. Further, the date of the Board Meeting for consideration and approval of Financial Results (Unaudited) of the Company for the half-year ended on September 30, 2026, will be intimated in due course. This Notice may kindly be taken as our disclosure as required under the relevant provisions of the Securities and Exchange Board of India (Listing Obligation and Disclosure Requirements) Regulations, 2015. Kindly acknowledge the receipt and take the same on your records. Thanking You, Yours faithfully, FOR STEELMAN TELECOM LIMITED APARUPA DAS (Company Secretary & Compliance Officer) Mb No:42450 Corporate Office: Mani Casadona, Flat No 15E1, Floor No-15, Plot No-IIF/04, Street No-372, Action Area-IIF, New Town, Kolkata-700156. Website: www.steelmantelecom.com | Email: contact@steelmantelecom.in | Phone No. +91-8443022233 | CIN No. L55101WB2003PLC096195