We hereby inform you that the timing of a conference call has been revised. The conference call, earlier scheduled for 11:30 A.M. (IST), will now be conducted at 12:30 P.M. (IST) on Thursday, 12th November, 2026.

Ref.: SEC/SE/2026/ 9th November, 2026 BSE Ltd. National Stock Exchange of India Ltd. 1st Floor, New Trading Ring “Exchange Plaza”, C-1, Block ‘G’ Phiroze Jeejeebhoy Towers Bandra-Kurla Complex Dalal Street Bandra (East) MUMBAI : 400 001 MUMBAI : 400 051 Ref. : Company Code No. : 530001 Ref. : Company Code No. : GUJALKALI Dear Sir/Madam, Sub. : Disclosure of information under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Conference Call to discuss financial results of the Company for the quarter and half year ended 30.09.2026. This is further to our letter dated 07.11.2026, wherein we had communicated the schedule of a conference call to discuss financial results of the Company for the quarter and half year ended 30.09.2026. We hereby inform you that the timing of a conference call has been revised. The conference call, earlier scheduled for 11:30 A.M. (IST), will now be conducted at 12:30 P.M. (IST) on Thursday, 12th November, 2026. Further details in respect of the same are attached herewith and will also be disclosed on the Company’s website at www.gacl.com. The invite is subject to change due to any exigency. You are requested to take note of the above. Thanking you, Yours faithfully, For GUJARAT ALKALIES AND CHEMICALS LIMITED ( S S BHATT ) COMPANY SECRETARY & EXECUTIVE DIRECTOR (LEGAL, CC & CSR) E-mail: cosec@gacl.co.in Antique Stock Broking Limited invites you to 2QFY27 Post Results Conference Call of Gujarat Alkalies and Chemicals Limited on Thursday, 12th November 2026 at 12.30 p.m. (IST) Management represented by: Smt. Avantika Singh, IAS – Managing Director Mr. G S Paliwal - Executive Director (Commercial) Mr. S S Bhatt - Company Secretary & Executive Director (Legal, CC & CSR Mr. Vrajesh Parikh - Executive Director (Technical) Mr. Shailesh Damani - General Manager (Finance) & CFO Dial in details Universal Access: +91 22 6280 1342 / +91 22 7115 8243 International Toll Free Numbers: Argentina : 0080014243444 Japan : 00531161110 Australia : 0080014243444 Netherlands : 08000229808 Belgium : 0080014243444 Poland : 008001124248 Canada : 01180014243444 Singapore : 8001012045 China : 4008428405 South Korea : 00180014243444 France : 0800914745 Sweden : 0080014243444 Germany : 0080014243444 Thailand : 00180014243444 Hong Kong : 800964448 UK : 08081011573 Italy : 0080014243444 USA : 18667462133 Or click below to Express Join with DiamondPass: Click here to join the Call For any enquiries regarding the conference call, contact: Mr. Manish Mahawar Mr. Riju Dalui Antique Stock Broking Limited Antique Stock Broking Limited Tel. No: +91 22 6911 3427 Tel. No: +91 22 6911 3431 Email: manish.mahawar@antiquelimited.com Email: riju.dalui@antiquelimited.com