Please find attached the intimation on Revision in the Credit Rating by Crisil

SEAMEC LIMITED A member of MMG l'flJGV,.WAJ..GROJP 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 • CIN : L63032MH1986PLC154910 SEAMEC/BSE&NSE/CREDITRATING/SMO/1410/2026 October 14, 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: Intimation of Credit Rating under Regulation 30 of SEBI Listing Regulations Dear Sir / Madam, Pursuant to Regulation 30 read with Clause 3 of Para A of Part A of Schedule III of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI circular dated January 30, 2026, it is hereby informed that CRISIL Ratings (CRISIL) has revised the existing Long Term Rating to Crisil A+/ Stable (Reaffirmed) and the Short Term Rating to Crisil A1 (Reaffirmed) for bank facilities of the Company. In this regard, please find below the ratings outstanding for debt instruments/ facilities of the Company, and the rating actions by CRISIL on the ratings as on date: Total Bank Loan Facilities Rated Rs. 883 Crore (Enhanced from Rs. 863 Crore) Long Term Rating Crisil A+/ Stable (Reaffirmed) Short Term Rating Crisil A1 (Reaffirmed) The above information is also made available on the website of the Company i.e. www.seamec.in. Kindly take the above on record. Thanking you, Yours Faithfully, For SEAMEC LIMITED S.N. Mohanty President – Corporate Affairs, Legal and Company Secretary Please visit us at: www.seamec.in - Q Q CONTRACTOR MEMBER GIMCA ~ MGMTSYS MGMlSYS 1SO9001:2015 1SO14001:2015 1SO4SO0U018 International Marine Contractors Association Certified by IRQS Av AC0 71 Certified by IRQS AvA C07 1 Certified by IRQS OHSMS 007