Closure of Trading Window

September 24, 2026 To To National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G, Phiroze Jeejeebhoy Towers Bandra Kurla Complex, Dalal Street Bandra (E), Mumbai – 400 051 Mumbai- 400 001 Symbol: ZENTEC Scrip Code: 533339 Dear Sir/Madam, Sub: Closure of Trading Window Pursuant to provisions of the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, (as amended from time to time) and the Company's Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons and Immediate Relatives of Designated Persons, we hereby inform you that the trading window for dealing in the securities of the Company will be closed from October 01, 2026, till expiry of 48 hours after the declaration of Standalone and Consolidated Un-audited Financial Results of the Company for the quarter and half year ending September 30, 2026, for all designated persons, their immediate relatives and all connected persons covered under the said Code. The date of the Board Meeting for consideration of the Standalone and Consolidated Un-audited Financial Results of the Company for the quarter and half year ending September 30, 2026, will be intimated in due course. This is for your kind information and records. Thanking you Yours faithfully For Zen Technologies Limited Sourav Dhar Company Secretary & Compliance Officer