Rossari Biotech Ltdhas informed BSE that the meeting of the Board of Directors of the Company is scheduled on 17/10/2026 ,inter alia, to consider and approve Unaudited Financial Results (Standalone & Consolidated) for the quarter and half year ended September 30, 2026.

October 09, 2026 DCS-CRD Listing Compliance BSE Limited National Stock Exchange of India Limited First Floor, New Trade Wing Exchange Plaza, 5th Floor Rotunda Building, Phiroze Jeejeebhoy Towers Plot No. C/1, ‘G’ Block, Bandra- Kurla Complex Dalal Street, Fort Mumbai 400001 Bandra East Mumbai 400051 Fax No.2272 3121/2037/2039 Fax No.2659 8237/8238 Stock Code: 543213 Stock Code: ROSSARI Dear Sir/Madam, Sub.: Notice of Board Meeting to be held on October 17, 2026 Ref.: Unaudited Financial Results (Standalone and Consolidated) for the quarter and half year ended September 30, 2026 Notice is hereby given that pursuant to Regulation 29 and 33 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, the meeting of the Board of Directors of the Company is scheduled to be held on Saturday, October 17, 2026, inter alia, to approve the Unaudited Financial Results (Standalone and Consolidated) for the quarter and half year ended September 30, 2026. Further as intimated vide our letter dated September 25, 2026, the “Trading Window” for dealing in securities of the Company, shall remain closed for all the “Designated Persons and their immediate relatives” covered under Company’s Code of Conduct for Prevention of Insider Trading (“Code of Conduct”), from October 01, 2026 till 48 hours after the announcement of Unaudited Financial Results of the Company for the quarter and half year ended September 30, 2026. This intimation will be available on the website of the Company at www.rossari.com. The same may please be taken on record and suitably disseminated to all concerned. Thanking you, Yours Sincerely, For Rossari Biotech Limited Parul Gupta Company Secretary & Head - Legal Membership No.: A38895