Please find enclosed herewith the disclosure with respect to closure of trading window for the quarter and half year ended September 30, 2026

WALCHANDNAGAR INDUSTRIES LIMITED Walchandnagar: 413 114, Dist. Pune, Maharashtra, India Tel: 02118-252 235/252 236/252 237/252 238 Fax: 02118-252 584 Website: www.walchand.com Email: wil@walchand.com Ref. No. : WIL: SEC: 2026 Date : September 28, 2026 National Stock Exchange of India Ltd. BSE Ltd. Exchange Plaza, 5th floor, Phiroze Jeejeebhoy Towers, Plot No. C/1, G Block, Dalal Street BandraKurla Complex, Bandra (East) Mumbai 400 001. Mumbai 400 051. Fax:: 22723121/2039/2037 Fax :26598237/38, 66418126/25/24 SCRIP CODE : 507410 SCRIP CODE : WALCHANNAG Dear Sir (s), Sub: Intimation of Closure of Trading Window – SEBI (Prohibition of Insider Trading) Regulations, 2015 Pursuant to the NSE Circular No. NSE/CML/2019/11 and the BSE Circular No. LIST/COMP/01/2019-20 both dated April 02, 2019, and in the compliance of the provisions of the Securities & Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015 and the Company’s Code of Internal Procedures and Conduct for Regulating, Monitoring and Reporting of Trading in Securities by Designated Persons”, the Trading window for dealing in the Securities of the Company for all the Designated Persons, as defined in the Code, shall remain closed w.e.f. October 01, 2026 till the expiry of 48 hours after the declaration of the Un-Audited Financial Results of the Company for the Quarter and half year ended September 30, 2026. The date of the Board Meeting to consider the Un-Audited Financial results for the Quarter and half year ended September 30, 2026, shall be intimated separately in due course. Kindly take the above said information on your records. Thanking you, Yours faithfully, For Walchandnagar Industries Ltd., G. S. Agrawal Whole Time Director & Company Secretary DIN: 00404340 REGD OFFICE: Siddharth Towers (Tower No.1), S.No.12/3-B, Office 908 to 910, Kothrud, Pune- 411 038, Maharashtra, India. Tel: 020-2543 8585 Fax: 020-2543 8585 CIN: L74999PN1908PLC255621