Pursuant to SEBI(PIT) Regulations, 2015, we wish to in form you that the trading window for trading of securities of company will remain closed from Thursday, 1st October, 2026 till 48 hours after the date of declaration of the Un-audited Financial results for the quarter ending on September 30, 2026.

CRIMSON METAL ENGINEERING COMPANY LIMITED Manufacturers & Exporters of E.R.W. STEEL TUBES - PIPES (BLACK & GALVANISED) CIN : L27105TN1985PLC011566 Regd. & Head Office : Phone :044-25240393 / 25240559 No. 163/1, K.SONS COMPLEX Web: wsww.icrmettale.in Il FLOOR, BROADWAY, CHENNAI - 600 108. INDIA September 26, 2026 The Dept. of Corporate Services BSE Limited Phiroze Jeejeeboy Towers, Dalal Street, Mumbai-400001 Sub: - Notice for Closure of Trading Window for the Unaudited Financial Results for the Quarter ending on September 30, 2026 Security Code: 526977 Dear Sir/Ma’am, Pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015, we wish to inform you that the trading window for trading of securities of the Company will remain closed from Thursday, 01% October 2026 and shall continue to remain closed till 48 hours after the date of declaration of the Unaudited Financial Results for the Quarter ending on September 30, 2026. Accordingly, the Designated Persons and their immediate relatives have been intimated not to trade in the securities of the Company during the above-said period of closure of the trading window. You are requested to take note of the same in your records for the purpose of further dissemination. Thanking You, Yours Faithfully, For Crimson Metal Engineering Company Limited DIVYA Digitally signed by DIVYA ARORA AROR Date: 2026.09.26 17:17:52 +05'30' Divya Arora Company Secretary and Compliance Officer Membership No.: A71348 Works : Sedarapet Industrial Estate, Mailam Road, Pondicherry - 605 111. Phone : (91) 0413 - 2677351 Fax (91) 0413-2677346