Onesource Specialty Pharma Ltdhas informed BSE that the meeting of the Board of Directors of the Company is scheduled on 27/10/2026 ,inter alia, to consider and approve OneSource Specialty Pharma Limited has informed BSE that the meeting of the Board of Directors of the Company is scheduled on 27-Oct-2026 ,inter alia, to consider and approve the unaudited financial results (Standalone and Consolidated) of the Company for the quarter ended September 30, 2026.

Corporate Office: Registered Office: Star 1, Opp IIM Bangalore, Bilekahalli, Cyber One, Unit No. 902, Sector 30A, Bannergha(cid:425)a Road, Bengaluru – Plot No - 4 & 6, Vashi, 560076, India Navi Mumbai - 400703, India T: +91 80 6784 0738 T: +91 22 2789 2924 Date: October 21, 2026 BSE Limited National Stock Exchange of India Ltd Phiroze Jeejeebhoy Towers Exchange Plaza, C-1, Block G, Dalal Street Bandra Kurla Complex, Bandra (E) Mumbai- 400001 Mumbai – 400 051 Scrip Code: 544292 Symbol: ONESOURCE Dear Sir/ Madam, Subject: Intimation of the Board meeting under Regulation 29 of the SEBI (Listing Obligations and Disclosures Requirements) Regulations, 2015 In terms of SEBI Listing Regulations, we wish to inform you that a meeting of Board of Directors is scheduled to be held on Tuesday, October 27, 2026, to consider and approve the unaudited financial results (standalone and consolidated) of the Company for the quarter ended September 30, 2026, amongst other matters. Further, as per the provisions of the Company’s Code of Conduct under the SEBI (Prohibition of Insider Trading) Regulations, 2015, the trading window for the Designated Persons of the Company, for the quarter ended September 30, 2026, was closed from October 01, 2026 and shall open after 48 hours after the dissemination of the financial results by the Company. You are kindly requested to take this information on record. For and on behalf of OneSource Specialty Pharma Limited Trisha A Company Secretary and Compliance Officer Membership Number: A47635 OneSource Specialty Pharma Limited info@onesourcecdmo.com | www.onesourcecdmo.com CIN: L74140MH2007PLC432497