Launch of Interactive Microsite of 39th Annual Report FY 2025-26

31 July 2027 To, To, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Dalal Street, Bandra - Kurla Complex, Mumbai - 400 001 Bandra (E), Mumbai - 400 051 Scrip Code: 524669 Symbol: HESTERBIO Dear Sir/Madam: Subject: Launch of Interactive Microsite of 39th Annual Report FY 2025–26 In continuation of our submission dated 18 June 2026 in respect of the 39th Annual Report for the financial year 2025–26, we wish to inform you that the Company has launched a dedicated digital microsite presenting the Annual Report in an interactive, accessible and user-friendly format. The microsite can be accessed here: https://annualreport.hester.in/ Key features of the microsite include: 1. Seamless and intuitive navigation through a mobile-friendly interface 2. An interactive presentation of key financial, operational and strategic highlights 3. Convenient options for downloading and sharing the Annual Report This initiative forms part of the Company’s continuing efforts towards digital transformation, sustainability and stakeholder-centred communication. By making the Annual Report available in an engaging digital format, the Company aims to improve accessibility, promote sustainable communication practices and encourage wider stakeholder engagement. Kindly take the above on record. Sincerely, For Hester Biosciences Limited Vinod Mali Company Secretary & Compliance Officer