Please refer to the attachment.

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/2026-27/54 23rd August, 2026 Corporate Relationship Department National Stock Exchange of India BSE Limited Limited Phiroze Jeejeebhoy Towers Exchange Plaza, Dalal Street, Mumbai- 400001 Bandra Kurla Complex, Scrip Code – 506879. Bandra (East), Mumbai- 400051 Symbol: GUJTHEM Sub.: Disclosure pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Amendment to the Articles of Association of the Company. We would like to inform that the Shareholders of the Company, vide Special Resolution passed through Postal Ballot on 22nd August, 2026, have approved the amendment to the Articles of Association of the Company as below and brief details are provided in Annexure A. Article 13(1) Clause (c) Articles of Association be and is hereby amended by deleting the following words: "if the price of such shares is determined by a registered valuer or a valuer approved for this purpose, who shall submit a valuation report in that behalf, subject to such conditions as may be prescribed." so that Clause (c) of Article 13(1) shall henceforth read as under: "(c) Any persons, whether or not those persons include the persons referred to in clause (a) or clause (b) above, either for cash or for a consideration other than cash." 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 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 Annexure A Brief details of Amendment to the Articles of Association (“AOA”) of the Company Article 13(1) Clause (c) Articles of Association be and is hereby amended by deleting the following words: "if the price of such shares is determined by a registered valuer or a valuer approved for this purpose, who shall submit a valuation report in that behalf, subject to such conditions as may be prescribed." so that Clause (c) of Article 13(1) shall henceforth read as under: "(c) Any persons, whether or not those persons include the persons referred to in clause (a) or clause (b) above, either for cash or for a consideration other than cash." 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