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VALLEY MAGNESITE CO. LTD. ~ Regd. Office . A-402, Mangalam. 24/26, Hemanta Basu Sarani, Kolkata-700 001 _Phone No. : 033-2243 6242 / 6243, E-mail : valleymagnesite@yahoo.in ee CIN: L23109WB1988PLC045491 DATE: VMCL/ 104/160 The Secretary, BSE Ltd, Corporate Relationship Department, Calcutta Stock Exchange Ltd 7, Lyons Range, P.J.Towers, Kolkata- 700 001 Dalal Street, Fort, Email: listing@cse-india.com Mumbai- 400 001. Scrip Code:- 32042 Scrip Code: 539543 Scrip Id: VALLEY Re: Information about closure of Trading Window Dear Sir/ Madam, Pursuant to provisions of SEBI (Prohibition of Insider Trading),Regulations,2015 & amendments thereto, we write to inform you that Trading Window for dealing in the securities of the Company for all the Board Members, officers and designated Employees and their respective Dependent Family Members shall remain closed on and from 1st October, 2026 and will re-open after completion of 48 hours from the declaration of Unaudited financial results for the quarter and half year ended 30th September, 2026 by the Board of Directors of the Company. The same has been intimated to all the directors, officers and designated employees of the Company. Further the date of Board Meeting for considering the said Unaudited financial results for the quarter and half year ended 30th September, 2026 shall be intimated in due course. Kindly take the same on record Thanking You, Yours Faithfully, Soiriv, For Valley Magnesite Co, Ltd~ “oN ARUN KUMAR —Dstalysgredoyarunnunis f a2 AGARWALLA Date: 2026,09.23003470:5'5320' \ n (Arun Kumar Agarwalla) S Managing Director es DIN:00607272