Closure of Trading Window

Date: 28th September, 2026 BSE Limited National Stock Exchange of India Limited Dept. of Corporate Services, Dept. of Corporate Compliances, Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1 Block-G, Dalal Street, Bandra Kurla Complex, Mumbai- 400 001 Bandra (E) Mumbai- 400 051 BSE Scrip Code - 541304 NSE Symbol: INDOUS Dear Sir/Madam, Sub: Intimation of Closure of Trading Window Pursuant to the Company’s Code of Conduct for Prevention of Insider Trading framed in accordance with SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended from time to time, we would like to inform that the trading window for dealing in the shares of the Company shall remain closed for all Designated Persons of the Company from October 01, 2026 till completion of 48 hours from the announcement of the unaudited financial results of the Company for the quarter and half year ending September 30, 2026 to the Stock Exchanges. The date of meeting of the Board of Directors to approve the un-audited financial results of the Company for the quarter and half year ending ended September 30, 2026, shall be informed in due course. Request you to take the same on your records. Thanking you. Yours faithfully, For, Indo Us Bio Tech Limited Ms. Dimpy Joshi Company Secretary & Compliance Officer