Certificate under SEBI (Depositories and Participants) Regulations, 2018

SEAMEC LIMITED A member of MMG Regd. Office: A-901-905, 9th Floor, 215 Atrium, Andheri Kurla Road, Andheri (East), Mumbai 400 093, India Tel.: +91-22-6694 1800 • Fax: +91-22-6694 1818 • E-mail: contact@seamec.in • GIN: L63032MH1986PLC154910 SEAMEC/BSE&NSF/REG74(5)/SMO/0610/2026 October 06, 2026 Corporate Relations Department The Manager Listing Department BSE Limited National Stock Exchange of India Limited Phirojee Jeejeebhoy Towers, Exchange Plaza, Plot No. C/1, G Block, Dalal Street, Bandra-Kurla Complex, Bandra (East) Mumbai - 400001 Mumbai -400051 Scrip Code: 526807 Trading Symbol: SEAMECLTD Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended September 30, 2026 Dear Sir/ Madam, Please find enclosed Certificate received from "MCS Share Transfer Agent Limited", Registrar and Share Transfer Agent of the Company, confirming compliance of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Kindly take the same on record. Thanking you, Yours Faithfully, For SEAMEC LIMITED S.N. l\tohanty President - Corporate Affairs, Legal and Company Secretary Please visit us at : www.seamec.in @ g CONTRACTOR MEMBER ~ IMCA MGMT.SYS. MGMT.SYS. International Marina Contractors Association Ce1 rtS if0 i9 e0 d0 1 b:2 y0 I1 R5 Q S nvACD71 Ce1 r5 ti0 f1 ie40 d0 b1: y2 ID R15 Q S nvACOII Certified by IRQS OHSMS 007 MCS Share Transfer Agent Limited 3B3 ,3rd FLOOR GUNDECHA ONCLAV E KHERANI ROAD SAKINAKA ANDHERI EAST MUMBAI 400072 PhoneNo: 022-28516021-22,022-46049717,FmaiJ: helpdeskmum mcsregistrars.com Wehin::www~CINNO.U6'7WWB!l11Pl.C165872 October 1, 2026 SEAMEC LIMITED 215 ATRIUM A-901-905 9TH FLOOR ANDHERI KURLA ROAD ANDHERI (EAST) MUMBAI 400093 Dear Sir, (ISIN: INE497B01018) Subject: Certificate under Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026 With reference to captioned subject, we hereby certify 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 mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in register of members as the registered owner within 15 days, We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For MCS Share Transfer Agent Limited Subodh Vichare Branch - Head