Certificate under SEBI (Depositories and Participants) Regulations, 2018

October 06, 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: Compliance Certificate in the matter of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 In reference to the above captioned Regulation, we have enclosed herewith confirmation received from our Registrar and Share Transfer Agent viz. MUFG Intime India Private Limited in relation to dematerialisation of shares, mutilation and cancellation of share certificates received for dematerialisation during the quarter ended September 30, 2026. 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 MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai – 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com 6 October 2026 Company Secretary Rossari Biotech Limited Rossari House, Golden Oak, LBS Marg, Surya Nagar, Opp. Mahindra Showroom, Vikhroli (West), Mumbai-400079 Dear Sir, Subject: Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking You, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Vice President – Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services