Resignation

Date: 11 September 2026 To To BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra Kurla Complex Mumbai- 400001 Bandra (E) Mumbai-400051 Security Code: 540596 Symbol: ERIS SUBJECT: INTIMATION UNDER REGULATION 30 OF SEBI (LISTING OBLIGATIONS AND DISCLOSURE REQUIREMENTS) REGULATIONS, 2015 – RESIGNATION OF EXECUTIVE DIRECTOR & CHIEF OPERATING OFFICER (COO) Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you that Mr. Krishnakumar Vaidyanathan has tendered his resignation from the position of Executive Director & Chief Operating Officer (COO) of the Company. He has decided to step down to pursue professional opportunities outside the organization. The resignation has been accepted by the Chairman. Consequently, the Company has decided to relieve him from his duties with effect from the close of business hours on September 30, 2026. The Company places on record its sincere appreciation for the valuable contributions, leadership, and dedication demonstrated by Mr. Krishnakumar Vaidyanathan during his tenure with the organization. In accordance with requirement of regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with Para A of Part A of Schedule III and SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, details attached herein shall be taken on record. You are requested to take the above information on your record. Thanking You, For Eris Lifesciences Limited Milind Talegaonkar Company Secretary & Compliance Officer Membership No: A26493 Encl: As above Annexure Sr. No. Particulars Details 1. Reason for change viz. appointment, re- Resignation to pursue professional opportunities appointment, resignation, removal, death or outside the Company. otherwise: 2. Date of appointment/re-appointment/cessation (as Close of business hours on September 30, 2026 applicable) & term of appointment/re-appointment: 3. Brief profile (in case of appointment): Not Applicable 4. Disclosure of relationships between directors (in Not Applicable case of appointment of a director):