Trading Window

GUJARAT THEMIS BIOSYN LIMITED CIN: L24230GJ1981PLC004878 REGD. OFFICE &FACTORY: 69/C GIDC INDUSTRIAL ESTATE, VAPI – 396 195, DIST. VALSAD, GUJARAT, INDIA TEL: 0260-2430027 / 2400639 E-mail:hrm@gtbl.in.net GTBL/BSE/NSE/2026-27/31 25th June, 2026 Corporate Relationship Department Listing Department BSE Limited National Stock Exchange of India Limited Floor 25, Phiroze Jeejeebhoy Towers Exchange Plaza, Dalal Street, Mumbai- 400001 Bandra Kurla Complex, Scrip Code – 506879 Bandra (East), Mumbai- 400051 Symbol: GUJTHEM Dear Sir / Madam, Re:- Intimation of closure of Trading Window in terms of SEBI (Prohibition of Insider Trading) Regulations, 2015: Pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015 and Company’s Code of Conduct for prevention of Insider Trading, it is hereby notified that the Trading Window i.e. period for trading in Company’s shares / securities will be closed with effect from Wednesday, 1st July, 2026 and will re-open after completion of 48 hours from the declaration of un-audited financial results for the quarter ending 30th June, 2026 by the Board of Directors of the Company. The date of Board Meeting for considering the said financial results for the quarter ending 30th June, 2026 will be intimated in due course. We request you to kindly take this intimation on record. Thanking you, Yours faithfully For Gujarat Themis Biosyn Limited Vineet Gawankar Company Secretary & Compliance Officer MUMBAI OFFICE: Themis House, 11/12 Udyog Nagar, S.V Road, Goregaon (West), Mumbai – 400 104 Tel: 91-22-67607080 / 28757836 Fax: 28746621 / 67607019; E-mail: gtblmumbai@gtbl.in Website Address: www.gtbl.in