Certificate under SEBI (Depositories and Participants) Regulations, 2018

@ HINDCON CHEMICALS LIMITED 62B, Braunfeld Row, VASHUDHA, Kolkata-700 027 Tel.:+91 33 2449 0839, Fax :+91 33 2449 0849 email : contactus@hindcon.com, Website : www.hindcon.com CIN NO. : L24117WB1998PLC087800 Date: 10.07.2026 National Securities Depository Limited Central Depository Services (India) Limited Lower Parel, Marathon Futurex, A-Wing, 25" Floor, Trade World — A wing, Kamala Mills | N Joshi Marg, Lower Parel. Compound Mumbai- 400013 Mumbai- i 400 01: 3 ’ National Stock Exchange of India Ltd., Exchange Plazza, C-1, Block ‘G’, Bandra-Kurla Complex, Bandra (E), Sub: Certificate as per Section 74(5) of SEBI (Depositories and Participants) Regulations, 2018 Dear Sir/ Madam, Pursuant to confirmation given by our Registrar & Transfer Agent (RTA), M/s. Niche Technologies Pvt. Lid., this is to inform you that the share certificates, if any, received and confirmed for dematerialization by our aforesaid RTA having its office at 3A, Auckland Place, 7" Floor, Room No. 7A & 7B, Kolkata — 700 017 during the period 1° April, 2026 to 30" June, 2026 have been cancelled and mutilated and the name of the Depository has been substituted in the record as the Registered Owner of the shares. Thanking You, Yours faithfully, For Hindcon Chemicals Limited Ankita Bancerjee Company Seeretary & Compliance Officer Encl: as above NICHE TECHNOLOGIES PRIVATE LIMITED (An 1SO 9001:2015 Certified Company) (Registrars & Share Transfer Agent) CIN: U74140WB1994PTC062636 3A, Auckland Place, 7 Floor, Room No. 7A & 7B, Kolkata — 700 017 Phones: (033) 2280 6616 / 6617 / 6618 Fax: (033) 2280 6619 E-Mail: nichetechpl@nichetechpl.com Website: https://www.nichetechpl.com Date: 06.07.2026 Hindcon Chemicals Limited 62B, Braunfeld Row, Vashudha Kolkata - 700 027 Dear Sir / Madam Sub.: Confirmation Certificate in the matter of Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the Quarter Ended 30" June 2026 In reference to the above captioned subject, we as RTA of your company hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30™ June 2026, were confirmed (accepted/rejected) to the depositories and that securities comprised in the said certificate have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been mutilated and cancelled after due verification and the name of the depository have been substituted in the register of members of the company as the registered owner. For Niche Technologies Pvt. Ltd. (Registrar & Share Transfer Agent) ( Ashok Sen ) Manager — EDP