Closure of Trading Window for declaration of Financial Results for the quarter and half year ended September 30, 2026.

September 29, 2026 To, To, Listing/Compliance Department Listing/Compliance Department BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Plot No. C/1, Dalal Street, G-Block, Bandra-Kurla Complex, Mumbai – 400001 Bandra (E), Mumbai – 400051 BSE CODE – 543998 NSE Symbol: VALIANTLAB Dear Sir/ Madam, Subject: Intimation of closure of ‘Trading Window’ This is to inform that the Trading Window for dealing in securities of the Company shall remain closed for all the Directors, Promoters & Promoter Group, Designated Persons, their Immediate Relatives and the Connected Persons of the Company with effect from October 01, 2026 until the expiry of 48 hours after the declaration of Financial Results for the quarter and half year ended September 30, 2026, pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015 and in accordance with the Company's Code of Conduct for Prevention of Insider Trading. This intimation is also being uploaded on the Company’s website at www.valiantlabs.in Please take note of the above on your record. Thanking you, Yours Faithfully, For Valiant Laboratories Limited Akshay Gangurde Company Secretary & Compliance Officer www.valiantlabs.in | CIN : L24299MH2021PLC365904 Registered Office: 104, Udyog Kshetra, Mulund-Goregaon Link Road, Mulund (W), Mumbai - 400080. Corporate Office: 701-A, 7th Floor, Tower-B, Embassy 247, L.B.S. Road, Vikhroli (West), Mumbai-400083. T: 022-49712001 / 49717220 /49717221| E: investor@valiantlabs.in