Please find enclosed a certificate dated 9th October 2026 for the quarter and half year ended 30th September 2026 received from Bigshare Services Private Limited, the Registrar and Share Transfer Agent of Dolfin Rubbers Limited. This certificate has been issued in terms of Regulation 74 (5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations 2018.

o DOLFIN RUBBERS LTD. D f 26-A, BRS Nagar, LUDHIANA-141012 (Punjab) I“ Tel: +91 0161-5031030, e-mail: info@dolfintyres.com, dolfintube @gmail.com, TYRES & TUBES An ISO 9001 & ISO 14001 Certified Co. To, Date: 10/10/2026 The Secretary, Listing Department BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai - 400 001 Maharashtra, India. Scrip Code: 542013 Sub.: CERTIFICATE UNDER REGULATION 74(5) OF THE SEBI (DEPOSITORIES AND PARTICIPANTS) REGULATIONS, 2018 FOR THE QUARTER AND HALF YEAR ENDED 30TH SEPTEMBER, 2026. Dear Madam/Sir, Please find enclosed a Certificate dated 09th October, 2026 for the quarter and half year ended 30th September, 2026 received from Bigshare Services Private Limited, the Registrar and Share Transfer Agent of Dolfin Rubbers Limited. This certificate has been issued in terms of Regulation 74 (5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. This is for your information and records. Thanking you. Yours faithfully, Dolfin Rubbers Limited Dilpreet Kaur Company Secretary and Compliance Officer Works : Village Gaunspur, HAMBRAN-141110, (Dist. LUDHIANA) Punjab. Web: www.dolfintyres.com, CIN : L25112PB1995PLC017160, GSTIN : 03AAACD5798B3ZU é Bigshare Services Pvt Ltd. REGISTERSEED BCIA TEGORY1 REGISTRAR 8 TRAN AGENT 56-2,6th floor Pinnacie Business Park, Nextto Ahura Centre, Mahakali Caves Road, Angheri (East) Mumbai - 400093 Board No. : 0226263| 8Dir2ec0t N0o : 022-62638268 Date: 09/10/2026 Ref No. BSS/Reg 74(5)-1009 DOLFIN RUBBERS LTD 26 A, BRS Nagar, LUDHIANA PUNJAB - 141002 Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Dear Sir/Madam, Ref: NSDL/CIR/II/5/2019 dated 25th January, 2019 CDSL/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 In reference to the above — captioned regulation we hereby confirm that no securities were received from the depository Participants for dematerialization up to September 30, 2026 by us and that since there were no securities for dematerialization no certificates have been mutilated & cancelled and hence, there is no substitution of the name of the depositories in the register of members as registered owner within 15 days of receipt of certificate of securities. Thanking you, Yours faithfully, For Bigshare Services Pvt Ltd. Sandeep More Authorized Signatory CIN : U99999MH1994PTC076534 Regd. Office: Office No S6-2, 6th Floor, Pinnacle Business Park, Next to Ahura Centre, Mahakali Caves Road, Andheri (East) Mumbai - 400 093 Tel. :+ 9122 6263 8200 * Fax : +9122 62638299 * Email : info@bigshareonline.com * Website : www.bigshareonline.com