Please find enclosed the intimation sent to the shareholders holding shares in physical mode requesting update of their KYC details.

Date: 20.08.2026 The Manager, Listing Department, BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai - 400001 Scrip Code - 530259 Dear Sir/Madam, Sub: Intimation under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”) Pursuant to Regulation 30 of the Listing Regulations, please find enclosed herewith the intimation sent to the shareholders of the Company holding shares in physical mode requesting updation of their KYC details (i.e. PAN, Postal address with pin code, Mobile number, Bank Account details and specimen signature). This intimation is also being made available on the Company’s website at www.isocl.in. Kindly take the same on record. Thanking You, Yours Faithfully, For Inter State Oil Carrier Limited (Rashmi Sharma) Company Secretary & Compliance Officer Membership No. A34765 Enclosed: As above INTERSTATE OIL CARRIER LIMITED CIN: L15142WB1984PLC037472 Registered office:113 Park Street, Poddar Point, South Wing (5th Floor), Kolkata – 700016 Phone No: 91 33 4067 5183, Website: www.isocl.in, Email: info@isocl.in Srl No.: «ENVNO» Date: 17.08.2026 «NAME» «ADR1» «ADR2» «ADR3» «ADR4» Jh1 : «JH1» Jh2 : «JH2» Folio No.: «FOLIO» Subject: Mandatory Updating of KYC Details, Nomination and Bank Mandate. In reference to SEBI Circular SEBI/HO/MIRSD/MIRSDRTAMB/P/C/R/2021/655 dated November 03,2021, SEBI/HO/MIRSD/POD-1/P/CIR/2024/81 dated June 10, 2024 and further SEBI directives for furnishing PAN, KYC details and Nomination, and directive dated January 17, 2024, SEBI has mandated with effect from April 1, 2024, the payment including dividend, interest or redemption etc. to security holders (in physical form) through electronic mode only. Accordingly, we draw your kind attention to the above and series of communication sent to you for updating PAN, KYC details, Nomination, Bank details, signatures etc. May be the same has missed your attention. The security holders (in physical form) are again reminded that in case of non-updation of PAN, Choice of Nomination, Contact Details including Mobile Number, Bank Account Details and Specimen Signature, it would not be possible to affect the remittance of dividend, interest etc. through the usual mode other than the mandated electronic mode on or after April 1, 2024. Hence the security holders (in physical form) are requested to update their PAN, Choice of Nomination, Contact Details including Mobile Number, Bank Account Details and Specimen Signature etc. immediately. To Update, kindly download the KYC forms from the Company’s website: https://isocl.in/forms-downloads/ or from the RTA’s website www.mdpl.in Kindly print and send the forms complete in all respect attaching therewith required documents self-attested by you, failing which no service request shall be entertained. Please note that Forms ISR-1 and ISR-2 are mandatory and either of ISR-3 or SH-13 or SH-14 be filled as per your choice. In case of query, please reach out to our Registrar and Share Transfer Agent at the following address: Maheshwari Datamatics Pvt Ltd 23 R. N. Mukherjee Road, 5th Floor, Kolkata700001 Tel:(033) 22482248, 22435029 Email: contact@mdplcorporate.com Website: www.mdpl.in Looking forward for your co-operation in the matter Thanking you, For Inter State Oil Carrier Ltd. Sd/- Rashmi Sharma Company Secretary & Compliance Officer This being a computer-generated letter signature has been dispensed with.