Duncan Engineering Ltd-has informed BSE that the meeting of the Board of Directors of the Company is scheduled on 27/10/2026 ,inter alia, to consider and approve the Un-audited Standalone and Consolidated Financial Results of the Company for the quarter and half year ended September 30, 2026.

Ref: DEL/SEC/2026/10/03 Date: October 21, 2026 Department of Corporate Services/Listing BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Fort, Mumbai – 400 001 BSE Scrip Code: 504908 Sub: Intimation of Board Meeting and Trading Window Closure Dear Sir/Madam, Pursuant to Regulations 29 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, it is hereby informed that a meeting of Board of Directors of the Company is scheduled to be held on Tuesday, October 27, 2026, to, inter alia: 1. To consider and approve the Un-audited Standalone and Consolidated Financial Results of the Company for the quarter and half year ended September 30, 2026. 2. Any other matter may be considered appropriate by the Board. Further, as intimated by our letter dated September 25, 2026, the Trading Window in terms of Company’s Code of internal procedures and conduct for regulating, monitoring and reporting of trading by Insiders and SEBI (Prohibition of Insider Trading) Regulations, 2015, is already closed from October 01, 2026, and shall re-open after 48 Hours from the publication of Financial Results This is for your information and records. Thanking you, For Duncan Engineering Limited Shanu Gupta Company Secretary and Compliance Officer