Please find enclosed herewith the Certificate under Regulation 74 (5) of SEBI (DP) Regulations, 2018 for the quarter ended September 30, 2026

Date: October 14, 2026 General Manager, Listing Department BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street Mumbai- 400001 Scrip Code : 540078 Dear Sir/Madam, Subject: Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026 Please find enclosed herewith a certificate received from Bigshare Services Private Limited, Registrar and Share Transfer Agent of the Company under Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Kindly take the same on your records. Thanking you. FOR MITSU CHEM PLAST LIMITED Manish Mavji Dedhia Managing Director and CFO DIN: 01552841 Place: Mumbai Encl: a/a Ref No. BSS/SE-AU Date: 14/10/2026 MITSU CHEM PLAST LIMITED INE317V01016 392 GALA COMPLEX, DIN DAYAL UPADHYAY MARG, MULUND. MUMBAI. 400080 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026. Ref: NSDL/CIR/II/5/2019 dated 25th January 2019 DSL/OPS/RTA/POLICY/2019/14 dated 25th January 2019. SEBI vide its letter ref no. MRD/DOP2/DSA2/OW/2019/2498/1 dated 24/01/2019 Dear Sir/Madam, With reference to the captioned regulation, we hereby confirm that the said Regulation is not applicable to the Company, as the entire holding of the Company’s shares are in demat form and we have not received any request from any members of the Company for rematerialisation or dematerialisation; during the quarter ended on 30th September 2026. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For Bigshare Services Pvt. Ltd., Sandeep More Authorised Signatory