Certificate under SEBI (Depositories and Participants) Regulations, 2018

October 5, 2026 National Securities Depository Limited Central Depository Services (India) Limited 301, 3rd Floor, Naman Chambers Marathon Futurex, A-Wing Plot C-32, G-Block 25th Floor, NM Joshi Marg Bandra Kurla Complex, Bandra East Lower Parel Mumbai 400 051 Mumbai 400 013 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended September 30, 2026 This is to certify that the details of securities dematerialized/rematerialized during the quarter ended September 30, 2026, as required under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, has been furnished to the BSE Limited and National Stock Exchange of India Limited, where the shares of the Company are listed. This is for your information and records. Thanking you, Yours faithfully, For Grindwell Norton Limited Girish T. Shajani Company Secretary Membership No. A22547 Cc: National Stock Exchange of India Limited BSE Limited MUFG Intime India Private Limited