Intimation of Closure of Trading Window

ONESOURCE INDUSTRIES AND VENTURES LIMITED CIN: L46201MP1994PLC076682 Date: 28th September, 2026 The BSE Limited 1st Floor, new trading wing, Rotunda Building Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai-400001 BSE Scrip Code: 530805 Subject: Intimation of Closure of Trading Window Dear Sir/Madam, Pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended, and in accordance with the Code of Internal Procedures and Conduct for Prohibition of Insider Trading in Dealing with the Securities of ONESOURCE INDUSTRIES AND VENTURES LIMITED, it has been decided that, the Trading Window for dealing in the securities of the Company will remain closed for all Designated Persons, their immediate relatives and all connected persons from October 01, 2026 till 48 hours after the Un-audited financial results for quarter ending on September 30, 2026 is made public. The date of Board Meeting for approval and declaration of Standalone Un-audited Financial Results of the Company for the quarter ending on 30th September, 2026 will be intimated in due course. Accordingly, all the Designated Persons and their immediate relatives and other Insiders under the PIT Regulations are advised not to deal in the securities of the Company either directly or indirectly during the aforesaid trading window closure period. The same disclosure is also uploaded on the website of the Company i.e., www.osivl.com. Further, we are also submitting the above said information in XBRL mode (Excel Template provided by Exchange) along with the submission in PDF mode within the prescribed time. You are requested to take the above information on your records. Thanking you. Yours faithfully, For, ONESOURCE INDUSTRIES AND VENTURES LIMITED CS NEHA RAVI PRAJAPATI Company Secretary and Compliance Officer M. No: A67093 Reg. Off. Address: 2nd floor, 234, M.P. Nagar Zone-1, Bhopal, Madhya Pradesh, India, 462011 Email Id: cs@osivl.com Contact No: +91 62321 19251 Website: www.osivl.com