We enclose herewith the intimation for closure of trading window for dealing in Company''s securities by the Company''s Designated Persons and their immediate relatives from October 1, 2026 till 48 hours after the announcement of Unaudited Financial Results (Standalone and Consolidate) of the Company for the second quarter and half year ending September 30, 2026.

September 25, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, Bandra-Kurla Complex Dalal Street, Mumbai - 400 001 Bandra (East), Mumbai - 400 051 Scrip Code: 538567 Scrip symbol: GULFOILLUB Through: BSE Listing Centre Through: NEAPS Dear Sir/ Madam, Sub.: Intimation for Closure of Trading Window We hereby inform you that in compliance with the SEBI (Prohibition of Insider Trading) Regulations, 2015 and pursuant to the Company’s Internal Code of Conduct to regulate, monitor and report trading by Designated Persons and their immediate relatives, the Trading Window for dealing in the securities of the Company by Designated Persons and their immediate relatives shall remain closed with effect from October 1, 2026 till 48 hours after the announcement of the Company’s Unaudited Financial Results (Standalone & Consolidated) for the second quarter and half year ending September 30, 2026 and becomes generally available information. Accordingly, all Designated Persons and their immediate relatives have been advised not to trade in the securities of the Company during the aforesaid period of closure of Trading Window. This information is also being hosted on the Company’s website at https://india.gulfoilltd.com/investors/investor- information/stock-exchange-releases . The date of the Board Meeting to consider and approve, inter-alia, the Unaudited Financial Results (Standalone & Consolidated) for the second quarter and half year ending September 30, 2026 shall be intimated separately in due course. You are requested to take the above on record. Thanking you. For Gulf Oil Lubricants India Limited Manish Kumar Gangwal Whole-Time Director & CFO DIN: 00255201