ESOP/ESOS/ESPS

July 20, 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 400 051 Fax No.2272 3121/2037/2039 Fax No.2659 8237/8238 Stock Code: 543213 Stock Code: ROSSARI Dear Sir/Madam, Sub.: Update on intimation of Grant of Options under Rossari Employee Stock Option Plan 2019. Ref.: Our Letter Dated July 18, 2026, regarding outcome of Board Meeting held on Saturday, July 18, 2026 and Intimation of Grant of Options under Rossari Employee Stock Option Plan - 2019. In furtherance to our letter dated July 18, 2026 regarding the Outcome of Board Meeting and Intimation of Grant of Options under Rossari Employee Stock Option Plan - 2019, we would like to clarify that number of options granted by the Board has inadvertently mentioned as ‘4000’ stock options in place of ‘5000’ options. Accordingly, number of options granted should be read as ‘5000’ options, including in Annexure I. We would further like to submit that all other contents of the aforesaid letter shall remain unchanged. 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