Intimation of closure of trading window

Ref. No.: TTL/COSEC/SE/2026-27/56 September 22, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai- 400001, India Mumbai – 400 051, India Scrip Code: 544028 Trading symbol: TATATECH Dear Sir / Madam, Subject: Intimation of closure of trading window This is to inform that pursuant to the SEBI (Prohibition of Insider Trading) Regulations 2015 and the Company's Code of Conduct for Regulating, Monitoring and Reporting of Trading by Insiders, the Trading Window for dealing in the securities of the Company by its Designated Persons will remain closed from Thursday, September 24, 2026. The closure is in connection with the finalization and approval of unaudited financial results for the quarter and half-year ending September 30, 2026. The trading window shall be opened 48 (Forty-Eight) hours after the said results of the Company are declared and disseminated to the Stock Exchanges. Accordingly, all the Designated Persons, their immediate relatives and other Insiders of the Company are advised not to deal in the Equity Shares of the Company during the aforesaid period. An intimation in this regard has been sent to all the Designated Persons of the Company. Request to kindly take the same on record. For Tata Technologies Limited Raghav Mulay Company Secretary and Compliance Officer Tata Technologies Limited Plot No 25, Rajiv Gandhi Infotech Park | Hinjawadi, Pune 411057 | India Tel: +91 20 6652 9090 | Fax: +91 20 6652 9035 CIN L72200PN1994PLC013313 Email: investor@tatatechnologies.com Website: www.tatatechnologies.com