Updates

September 08, 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: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 as amended Respected Sir / Ma’am, This is to inform that the Company has received renewal license on September 07, 2026 from Petroleum and Explosives Safety Organization (PESO) regarding license to store compressed gas (Ammonia) in pressure vessels or vessels at existing manufacturing unit of M/s. Diamines and Chemicals Limited at Plot No. 13, PCC Area, P.O. Petrochemicals, Vadodara, Gujarat. In respect of the above, additional disclosures as required under SEBI Circular No. SEBI/HO/CFD/CFD-PoD-1/P/CIR/2023/123 dated July 13, 2023, for Granting, withdrawal, surrender, cancellation or suspension of key licenses or regulatory approvals are provided at “Annexure A". Kindly take the above mentioned information on records. Thanking You, Yours Faithfully, For Diamines and Chemicals Limited Hemaxi Pawar Company Secretary Membership No.: A52581 Encl: As above 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 Annexure – A Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 as amended: Granting, withdrawal, surrender, cancellation or suspension of key licenses or regulatory approvals Sr. Particulars Responses 1. name of the regulatory or licensing Petroleum and Explosives Safety Organization authority (PESO) 2. brief details of the approval / license Renewal of License to store compressed gas obtained / withdrawn / surrendered (Ammonia) in pressure vessels or vessels at existing manufacturing unit of the Company 3. impact/relevance of such NA, Uninterrupted Operation and operations approval/license to the listed entity compliance. 4. Withdrawal / cancellation or NA suspension of licence / approval by the regulatory or licensing authority, with reasons for such action, estimated impact (monetary or otherwise) on the listed entity and penalty, if any; 5. period for which such approval / up to 30/09/2031 license is/was valid 6. Subsequently, the listed entity shall NA inform the stock exchange(s), the actual impact (monetary or otherwise) along with corrective actions taken by the listed entity pursuant to the withdrawal, cancellation or suspension of the key license/ approval 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