Intimation of closure of trading window for the announcement of unaudited financial statment for the quarter and half year ended on September 30, 2026

Date: 25/09/2026 Corporate Relationship Department BSE Limited Phiroze Jeejeebhoy Tower, 25th Floor, Dalal Street, Mumbai – 400 001 Scrip Code: 538964 Subject: Intimation regarding Closure of Trading Window Dear Sir/Madam, We hereby inform that pursuant to Securities and Exchange Board of India (Prohibition of Insider Trading) (Amendment) Regulations, 2018 read with the SEBI (Prohibition of Insider Trading) Regulations, 2015 as amended from time to time and as per Company’s Code of Conduct for regulating, monitoring, reporting of trading by insiders, trading window for dealing in securities of the Company by the Designated Persons and their relatives shall remain closed with effect from Thursday, October 01, 2026. The trading window shall remain closed till 48 hours after the announcement of the unaudited financial results of the Company for the quarter and half year ended on September 30, 2026. The date of the Board Meeting for considering the unaudited financial results for the quarter and half year ended on September 30, 2026 will be intimated in due course You are requested to take the above information on records. Yours faithfully, For Mercury Laboratories Limited Krishna Shah Company Secretary & Compliance Officer