With reference to above subject, we are enclosing herewith Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations,2018 for the quarter and half year ended 30th September, 2026 You are requested to take the same on your record

CRESTCHEM LIMITED Corporate Office:303B, Central Business Space, Opp: Fortune Land Mark Hotel, Opp: HDFC Bank, Near Usamanpura Cross Road, Ashram Road, Ahmedabad-380013. Phone: +91-9409119484, Email: info @crestchemlimited.in GST Number : 24AAACC8722C1Z5 CIN NO. L24100GJ1991PLC015530 WEBSITE: www.crestchemlimited.in Date: 07/10/2026 The Bombay Stock Exchange Ltd. The Department of Corporate Services, Phiroz Jeejeebhoy Tower, Dalal Street, Mumbai -400001 BSE Code – 526269 Subject: Confirma*on Cer*ficate under Regula*on 74(5) of Securi*es and Exchange Board of India (Depositories and Par*cipants) Regula*ons,2018 Dear Sir / Madam, With reference to above subject, we are enclosing herewith Confirma>on Cer>ficate under Regula>on 74(5) of Securi>es and Exchange Board of India (Depositories and Par>cipants) Regula>ons,2018 for the quarter and half year ended 30th September, 2026 You are requested to take the same on your record Thanking You For Crestchem Limited Indrajyotsingh R. Bagga Compliance officer and Asst. Company Secretary Membership no.: A81745 Reg. office : Sr. No. 550/1, Sub Plot o. 12, Village Indrad, Taluka -Kadi, District- Mehsana, Pin code-382715, Gujarat MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai - 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com Date : 03-10-2026 The Compliance Officer/ Company Secretary CRESTCHEM LIMITED 325, VILLAGE INDRAD, TAL KADI, MEHSANA 382721 MAHESANA PINCODE : 382721 Sub : Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates 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 confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Sr. Vice President-Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services