trading Window closure pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015

CIN: L99999GJ1987PLC009768 Regd. Office: 9-10, GIDC Industrial Estate, Waghodia, Dist.: Vadodara, 391760. Ph.: 75 748 06350 | E-Mail: co_secretary@20microns.com | Website: www.20microns.com 20ML/SECY/PIT/JUN June 23, 2026 To, To, The Secretary, Asst. Vice President, BSE Ltd. National Stock Exchange of India Ltd., 25th Floor, Exchange Plaza, Plot C/1, G Block Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Dalal Street, Fort, Bandra (E), Mumbai - 400 001 Mumbai - 400 051 Scrip Code - 533022 Symbol - 20MICRONS Dear Sir/Madam, Subject: Intimation of closure of Trading Window Pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended, and in accordance with the Company’s Code of Conduct for Regulating, Monitoring and Reporting of Trading by Designated Persons and their Immediate Relatives, it is hereby informed that the Trading Window for dealing in securities of the Company shall remain closed with effect from Wednesday, July 1, 2026, until 48 hours after the conclusion of the Board Meeting at which the Unaudited Financial Results (Standalone and Consolidated) for the quarter ending June 30, 2026, will be considered and approved. The closure of the Trading Window is applicable to all Designated Persons, including Promoters, Directors, Key Managerial Personnel, Senior Management Personnel, and their immediate relatives. The date of the Board Meeting for consideration and approval of the aforesaid financial results will be intimated separately in due course. You are requested to kindly take the same on your record. Thanking you. Yours faithfully, For 20 Microns Limited Komal Pandey Company Secretary & Compliance Officer ACS 37092 Page 1 of 1