Shareholder Meeting - Annual General Meeting on September 16, 2026

August 12, 2026 BSE Limited National Stock Exchange of India Limited 25, P. J. Towers, Exchange Plaza, C-1, Block G, Dalal Street, Bandra — Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai — 400 051 Scrip Code: 500120 Symbol: DIAMINESQ Sub: Notice regarding holding of 50th Annual General Meeting of the Company Dear Sir, We hereby inform you that the Board of Directors of the Company has, at its meeting held on May 18, 2026 decided to call the Annual General Meeting of the Company on Wednesday, September 16, 2026 at 10.30 AM at the Registered office of the Company situated at Plot No. 13, PCC Area, P.O. Petrochemicals, Vadodara- 391 350, in compliance with the provisions of the Companies Act, 2013, SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Further, please note that for the purpose of the Annual General Meeting of the Company, the Board had decided to keep the register of members closed from September 10, 2026 to September 16, 2026 (both days inclusive). You are kindly requested to take note of the same. Thanking You. Yours Faithfully, For Diamines and Chemicals Limited Hemaxi Pawar Company Secretary Membership No.: A52581 Diamines and Chemicals Limited (CIN No.L24110GJ1976PLC002905) Plot No. 13 P.C.C. Area, P.O. Petrochemicals, Dist. Vadodara 391346, Gujarat (India). T: +91 265 3534200, F: +91 265 2230218 E: info@dacl.co.in, W:dacl.co.in