Audio recording of Earnings Conference Call for Q2 & H1 FY 27.

October 19, 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.: Intimation of Audio Recording of Earnings Conference call for Q2 & H1 FY27 Ref.: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to the Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 and our intimation letter dated October 14, 2026 regarding Earnings Conference call with Analyst(s)/Investors(s) held on Monday, October 19, 2026, we would like to inform that audio recording of the aforesaid conference call is available on the website of the Company at www.rossari.com/announcement-2/ under the head ‘Investor Call’. 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