Updates

August 14, 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.: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Ma’am, This is to inform you that in accordance with Regulation 36(1)(b) of the SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015, the Company has sent a letter on August 13, 2026 to those Members whose e-mail addresses are not registered with Company/Registrar & Transfer Agent/Depositories, providing the weblink of Company’s website from where the Annual Report for FY 2025-26 can be accessed. A copy of the letter is enclosed for your records. The above information is also being made available on the website of the Company at www.dacl.co.in Thanking You. 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 CIN: L24110GJ1976PLC002905 Reg office Address: Plot No 13, PCC Area, PO Petrochemicals, Vadodara, Gujarat, 391350 Contact Number: 0265-0265-3534200 Website: www.dacl.co.in Email ID: secretarial@dacl.co.in ; info@dacl.co.in Date: 13/08/2026 Ref: Shareholder Name Address1 Address2 Address3 City Pincode Sub.: Notice of 50th Annual General Meeting (AGM) of Diamines and Chemicals Limited and Annual Report for the Financial Year 2025-26. We are pleased to inform you that the 50th Annual General Meeting ('AGM') of the Members of Diamines and Chemicals Limited (‘the Company’) is scheduled to be held on September 16, 2026, at 10.30 A.M. (IST) at the registered office of the Company at Plot No. 13, PCC Area, P.O. Petrochemicals, Vadodara -391 350. As per Regulation 36 (1) (b) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, (‘SEBI Listing Regulations, 2015’), as amended, the web-link, including the exact path, where complete details of the Annual Report are available is required to be sent to those member(s) who have not registered their email address(es) either with the Company or with any Depository or MUFG Intime India Private Limited (Formerly Link Intime India Private Limited), Registrar & Share Transfer Agent (RTA) of the Company. Accordingly, the web-link, including the exact path where complete details of the Annual Report for the Financial Year 2025-26 are available at: Website: www.dacl.co.in Exact path of Annual Report 2025-26: https://dacl.co.in/wp- content/uploads/2026/08/Annual_Report_2025_26_Final.pdf This letter is being sent to those member(s) who have not registered their email address(es) either with the Company or with any Depository or RTA of the Company as on the cut-off date as on August 07, 2026. This is also a reminder to update KYC details pursuant to SEBI Master Circular No. SEBI/HO/MIRSD/POD- 1/P/CIR/2024/37 dated May 07, 2024, and to dematerialise physical securities. The circular issued by SEBI mandates all the listed companies to record PAN, Address with PIN code, Mobile Number, Bank Account details, Specimen Signature and choice of Nomination of security holders holding securities in physical mode. While updating Email ID is optional, the security holders are requested to register email id also to avail online services. This is applicable for all security holders holding securities in physical mode. The formats for choice of Nomination and Updation of KYC details viz; Forms ISR-1, ISR-2, ISR-3, SH-13, SH-14 and SEBI circulars are available on our website as mentioned below: https://www.in.mpms.mufg.com > Resources > Downloads > KYC > Formats for KYC. The aforesaid SEBI Circular also mandates that security holders holding in physical mode whose folios do not have PAN, Choice of Nomination, Contact details, Bank Account details and Specimen Signature updated, shall be eligible for any payment including dividend, interest or redemption payment in respect of such folios, only through electronic mode with effect from April 1, 2024. Should you have any queries, please feel free to contact our investor relations department at secretarial@dacl.co.in or Ph. 0265-3534200. Moreover, you are also requested to update your e-mail address at the earliest either through your depository participants for electronic holding or send a communication to us / our RTA to facilitate the updation to continue receiving all important information & documents thereafter and encourage Green Initiative. Thanking you, Yours faithfully, For Diamines and Chemicals Limited Sd/- Hemaxi Pawar Company Secretary