Please find enclosed the letter sent to those shareholders whose email addresses are not registered, providing the weblink from where the Annual Report for the FY 2025-2026 can be accessed.

qs INTER STATE OIL CARRIER LIMITED Regd. Office : "PODDAR POINT" 113, PARK STREET, SOUTH WING, STH FLOOR, KOLKATA - 700 016, INDIA Gram : INSTATE / Phone : 2229 0588, Fax No. : 033 2229 0085, E-mail : info @isocl.in Isoc\ CIN-L15142WB1984PLC037472 # Web : www.isocl.in Date: 20.08.2026 The Manager, Listing Department, BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai - 400001 Scrip Code - 530259 Dear Sir/Madam, Sub: Letter to Shareholders under Regulation 36(1)(b) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Ref: Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements Regulations, 2015. In accordance with the requirements of Regulation 36(1)(b) of the Listing Regulations, the Company has sent a letter to those shareholders whose email addresses are not registered with the Company/Registrar & Transfer Agent/Depository Participants, providing the weblink of the Company’s website from where the Annual Report for FY 2025-26 can be accessed. A copy of the said letter is enclosed herewith for your reference. This intimation is also being made available on the Company’s website at www.isocl.in. This is for your information, record and necessary dissemination to all the stakeholders. Thanking You, Yours Faithfully, For Inter State Oil Carrier Limited + Digitally signed by Rashmi gashmishorms Date: 2026.08.20 Sharma yp5819 1050 (Rashmi Sharma) Company Secretary & Compliance Officer Membership No. A34765 Enclosed: As above INTERSTATE OIL CARRIER LIMITED CIN: L15142WB1984PLC740732 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.: Date: 17.08.2026 Name Address Folio No. / DP ID / Client ID: *************** No, of Shares: ******* Dear Shareholder, Sub.: Details regarding Notice of the 42nd Annual General Meeting and Annual Report for FY 2025-2026 We are pleased to inform you that the 42nd Annual General Meeting (“AGM”) of the Company is scheduled to be held on Monday, 14th September, 2026 at 1:00 P.M. through Video Conferencing (“VC’)/Other Audio-Visual Means (“OAVM’) to transact the business as set out in the Notice of the 42nd AGM dated 10* August, 2026. The Notice of the 42nd AGM along with the Annual Report for the financial year 2025-2026 is being sent by electronic mode to shareholders whose e-mail ids are registered with the Company / Registrar & Share Transfer Agent (RTA) or the Depository Participants. Based on the records available with the Company and/or RTA of the Company, your e-mail id is not registered against your demat account/folio number. Accordingly, pursuant to Regulation 36(1)(b) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, this communication is being sent to inform you that the Notice of the 42nd AGM along with the Annual Report for the financial year 2025-2026, may be accessed through the following weblinks: Notice of 42nd AGM https://isocl.in/general-meeting-notice-2/ Path for 42nd AGM Notice | Home Page > Investor > General Meeting > Click on the drop-down arrow > General Meeting Notice Annual Report https://isocl.in/annual-report/ Path for the Annual | Home Page > Investor> Disclosures under Regulation 46 of SEBI (LODR), 2015 > Click on Report for FY 2025-2026 the drop-down arrow > Financial Information > Click on the drop-down arrow > Annual Report. Additionally, the Notice of the 42nd AGM and the Annual Report are also available on the website of the stock exchange where the securities of the Company are listed, i.e., BSE Limited at www.bseindia.com and on the website of CDSL at www.evotingindia.com. Key Details of the AGM: Event Day & Date Time (IST) Cut-off Date for e-Voting Monday, 7th September, 2026 NA Book Closure Date Tuesday, 8th September, 2026 to Monday, 14th September, 2026 NA Commencement of e-Voting | Friday, 11th September, 2026. 9.00 a.m. End of e-Voting Sunday, 13th September, 2026. 5.00 p.m. Updation of KYC: Shareholders are requested to register or update their KYC and/or bank mandates as per the instructions below: © For Shares held in Demat form: Register/update the details with your respective Depository Participants. e For Shares held in Physical form: Please submit the relevant forms available at the Company’s weblink: https://isocl.in/forms-downloads/. In case of any queries / clarifications, you may contact the RTA, M/s. Maheshwari Datamatics Pvt. Ltd., (Unit : Inter State Oil Carrier Limited) at 23 R. N. Mukherjee Road, 5" Floor, Kolkata — 700 001, Tel. : +91 33 2248 2248 / 2243 5029, E-mail: contact@mdplcorporate.com Special Window for Re-lodgement of Transfer Requests of Physical Shares: Pursuant to SEBI Circular No. HO/38/13/11(2)2026-MIRSD-POD/I/3750/2026 dated 30 January 2026, SEBI has opened a special window for transfer and dematerialisation (“demat”) of physical securities which were sold/purchased prior to 1 April 2019, for a period of one year from 5 February 2026 to 4 February 2027. The said special window shall also be available for transfer requests that were submitted earlier but were rejected, returned or remained unattended due to deficiencies in documents, process or otherwise. Accordingly, eligible shareholders may submit their transfer requests, along with the requisite documents, to the Company’s Registrar and Share Transfer Agent (RTA), M/s. Maheshwari Datamatics Pvt. Ltd., within the aforesaid special window. Eligible shareholders may also refer to the aforesaid SEBI Circular available on the Company’s website under Investor > Shareholder Information > SEBI Circular at https://isocl.in/shareholder-information/. In case of any further queries/clarifications, you may write it to the undersigned at info@isocl.in Thanking you, Yours faithfully, For Inter State Oil Carrier Limited Sd/- Rashmi Sharma Company Secretary (Membership No. A34765) Note: This being computer generated letter, no signature is necessary.