Concord Enviro Systems Limited has announced the closure of its trading window for designated persons and their immediate relatives. This closure will be effective from Thursday, January 1, 2026, and will remain in effect until 48 hours after the declaration of the company's financial results for the quarter and nine months ended December 31, 2025. The specific date for the board meeting to approve these financial results will be communicated in due course. During the trading window closure, designated individuals and their relatives are prohibited from trading in the company's securities. This information is also being made available on the company's official website, www.concordenviro.in, for compliance and public record.