Certificate under SEBI (Depositories and Participants) Regulations, 2018

HINDCON CHEMICALS LTD. STRENGTH UPON STRENGTH Date: 09.10.2026 National Securities Depository Limited Central Depository Services (India) Limited Lower Parel, Marathon Futurex, A-Wing, 25% Floor, Trade World — A wing, Kamala Mills NM Joshi Marg, Lower Parel, Compound Mumb4a00i 0-13 Mumbai- 400013 National Stock Exchange of India Ltd., Exchange Plazza, C-1, Block ‘G’, Bandra-Kurla Complex, Bandra (E), Mumbai — 400 051. Ref: Symbol - HINDCON Sub: Certificate as per Section 74(5) of SEBI (Depositories and Parti ipants) Regulations, 2018 Dear Sir/ Madam, Pursuant to confirmation given by our Registrar & Transfer Agent (RTA), M/s. Niche Technologies Pvt. Ltd., this is to inform you that the share certificates, if any, received and confirmed for dematerialization by our aforesaid RTA having its office at 34, Auckland Place, 7% Floor, Room No. 7A & 7B, Kolkata — 700 017 during the period 1t Tuly, 2026 to 30 September, 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 Banerjee Company Secretary & Compliance Officer Encl: as above 9 62 B, Braunfeld Row, Kolkata-700027, West Bengal, India © wwwhindcon.com & contactus@hindcon.com @ +91 33 24490839, 9830599113 UDYAM: WB-10-0004006, GSTNO-19AAACHBO2IMIZE, CIN: L24117WB1996PLC087800 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: 06.10.2026 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 September 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 30t September 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