Closure of Trading Window relating to Unaudited Financial Result for the Second Quarter and Half Year Ending on 30th September 2026

28th September 2026 To To The Listing Department, The Corporate Relations Department, National Stock Exchange of India Limited BSE Limited NSE Symbol: SAILIFE BSE Scrip code: 544306 Dear Sir/Madam, Ref: SEBI (Prohibition of Insider Trading) Regulations, 2015 (“SEBI PIT Regulations”). Sub: Closure of Trading Window for declaration of Unaudited Financial Results for the second quarter and half year ending on 30th September 2026. Pursuant to the provisions of SEBI PIT Regulations read with Code of Conduct For Regulating, Monitoring And Reporting of Trading by Designated Persons and Their Immediate Relatives (“Code”), the Trading Window for dealing in securities of the Company for all the Designated Persons and their immediate relatives shall remain closed with effect from Thursday, 01st October 2026 till the end of 48 hours after the announcement of the unaudited financial results of the Company for the second quarter and half year ending on 30th September 2026. Accordingly, all the Designated Persons and their immediate relatives including insiders as per the said code, are being intimated not to enter any transaction involving dealing/trading in shares of the Company during the aforesaid period. Further, the date of Board Meeting to consider and approve the unaudited financial results of the Company for the second quarter and half year ending on 30th September 2026, shall be intimated in due course. Kindly take the above information on your record. Thanking you. Yours sincerely, For Sai Life Sciences Limited Runa Karan Company Secretary & Compliance Officer Membership No. A13721 Sai Life Sciences Limited (CIN: L24110TG1999PLC030970) Corporate office Registered office Contact us T: +91 40 6815 6000, # L4-01 & 02, SLN Terminus, Survey Plot No. DS-7, IKP Knowledge Park, Turkapally F: +91 40 6815 6199 #133, Gachibowli Miyapur Road, (V), Shameerpet Mandal, Medchal-Malkajgiri E: info@sailife.com Gachibowli, Hyderabad – 500032, (Dist), Hyderabad -500078, Telangana, India. W: www.sailife.com Telangana, India.