Closure of Trading Window

HEIL/SE-33/2026-27 September 23, 2026 To, To, The Manager (Listing), The Manager (Listing), The BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, “Exchange Plaza”, C-l, Block - G, Dalal Street, Bandra - Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Scrip Code : 543600 Symbol : HARSHA Dear Sir/Madam, Subject: Intimation of Trading Window Closure Pursuant to the provision of Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015 read with Code of Conduct to regulate, monitor and report trading by insiders, we hereby inform you that the trading window for dealing in the securities of the Company shall remain closed from October 1, 2026 till 48 hours after declaration of the Unaudited Standalone and Consolidated Financial Results of the Company for the quarter and half year ended September 30, 2026. The date of Board Meeting to consider, approve and take on record of the Unaudited Standalone and Consolidated Financial Results of the Company for the quarter and half year ended September 30, 2026 will be intimated in due course. Kindly take the same on your record. Thanking You, Yours faithfully, FOR HARSHA ENGINEERS INTERNATIONAL LIMITED Kiran Mohanty Company Secretary and Chief Compliance Officer Mem No. : F9907 Harsha Engineers International Limited CIN : L29307GJ2010PLC063233 Corporate & Registered Office: Sarkhej - Bavla Road, Changodar, Ahmedabad, Sanand - 382213, Gujarat, India. Tel.: +91-2717-618200 Fax: +91-2717-618259 E-mail: sec@harshaengineers.com URL: www.harshaengineers.com