Trading Window

Thejo Engineering Limited 41 Cathedral Road, T +91 44 42221900 Chennai - 600 086. F +91 44 42221910 India thejo@thejo-engg.com www.thejo-engg.com September 23, 2026 National Stock Exchange of India Limited, Exchange Plaza, Bandra Kurla Complex, Bandra (E), Mumbai 400051. Dear Sir/Madam, Scrip Code: THEJO – EQ Subject: Closure of Trading Window This is to inform that, in terms of the Company's "Code of Conduct to regulate, monitor and report trading by Designated Persons" read with SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended, the trading window for dealing in the securities of the Company by the Directors, Designated Persons and their immediate relatives shall remain closed from September 30, 2026 until 48 hours after the declaration of the Financial Results of the Company for the quarter ending September 30, 2026. The details of the Board Meeting to consider the Financial Results shall be intimated in due course. You are requested to kindly take the same on record and disseminate. With thanks, Yours truly, For Thejo Engineering Limited, Jayashree Sreeraman, Company Secretary & Compliance Officer ACS Membership No A38035 Corporate Identification Number: L27209TN1986PLC012833 Reg. Office : 41 Cathedral Road, Chennai - 600 086, India. Tel : +91 44 42221900 Fax: +91 44 42221910 Works: lrulipattu Village, Alinjivakkam Post, Ponneri Taluk, Chennai - 600 067. Tel: +91 44 27984342