Analysts/Institutional Investor Meet/Con. Call Updates

October 14, 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 Earnings Conference Call for investors and analysts for Q2 & H1 FY27 Ref.: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby intimate that an Earnings Conference Call for investors and analysts is being organized by the Company, as per the details provided below: Day and Time Name of Conference/ Meeting Type Scheduled for Date Investor/ Analysts Monday, 04:00 PM Q2 & H1 FY27 Conference Call - Investors/ October 19, (IST) Earnings Conference Call Group Meet Analyst Group 2026 (Telecommunication) The said conference call will be initiated with a brief management discussion on the financial results for the quarter and half year ended September 30, 2026, followed by an interactive Question & Answer session. Invite in this regard is enclosed for your information and record. 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 Encl.: as above ROSSARI BIOTECH LIMITED Cordially invites you to its Q2 & H1 FY27 Earnings Call To discuss operational and financial performance Date: Monday, 19th October 2026 Time: 04:00 PM IST Pre-register for the call Click Here Kindly pre-register by clicking on the link: Access Details Local Access Numbers International Toll-Free Numbers Primary Number: Hong Kong : 800 964 448 +91 22 6280 1488 Singapore : 800 101 2045 Additional Number: UK : 0 808 101 1573 +91 22 7115 8869 USA : 1 866 746 2133 Management Participants Mr. Edward Menezes - Promoter and Executive Chairman Mr. Sunil Chari - Promoter and Managing Director Mr. Ketan Sablok - Group Chief Financial Officer We look forward to your participation RSVP Strategic Growth Advisors Pvt. Ltd Mr. Sudarshan Dhekane Ms. Vaamaa Choksi sudarshan.dhekane@sgapl.net vaamaa.choksi@sgapl.net +91 9137013450 +91 9022208577