As per the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, as may be amended from time to time the 'Closure Trading Window period' shall be made applicable from the end of every quarter till 48 hours after the declaration of Financial Results. In view of the aforesaid, it is hereby intimated that the trading window of Gujarat Petrosynthese Limited ('the Company') would be closed with effect from Thursday, ....

GUJARAT PETROSYNTHESE LIMITED Reg. Off: No.24, II Main, I Phase, Doddanekkundi Industrial Area, Mahadevapura Post, Bengaluru-560 048. Ph: 91 – 80 - 28524133 E-mail: info@gpl.in, Website: www.gpl.in CIN No. L23209KA1977PLC043357 Date: September 29, 2026 BSE Limited, 1st Floor, Phiroze Jeejeebhoy Towers, Dalal Street, Fort, Mumbai-400001 Scrip Code: 506858 Subject: Closure of Trading Window of Gujarat Petrosynthese Limited (‘the Company’). Dear Sir/Madam, As per the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, as may be amended from time to time the “Closure Trading Window period” shall be made applicable from the end of every quarter till 48 hours after the declaration of Financial Results. In view of the aforesaid, it is hereby intimated that the trading window of Gujarat Petrosynthese Limited (‘the Company’) would be closed with effect from Thursday, October 01, 2026, and shall be opened 48 hours after the declaration of Un-audited Financial Results of the Company for the Quarter and half-year ended September 30, 2026. The date of the Board Meeting for the consideration and approval of said Financial Results will be intimated separately in due course. This is for your information and records. Thanking you, Yours faithfully For GUJARAT PETROSYNTHESE LIMITED Urmi N. Prasad Joint Managing Director DIN: 00319482 Address: 8-2-417/301, Mount Kailash, Road No. 4, Banjara Hills, Hyderabad-500034 Date: September 29, 2026 Place: Hyderabad