Dear Sir,Pursuant to the provisions of SEBI (Prohibition of Insider Trading) Regulation,2015 as amended from time to time ,the Code of Conduct to regulate, monitor and report trading by insiders of Crestchem Limited, we hereby inform you that the trading window for dealing the Securities of the Company Shall remain closed from 1st April,2026 to till 48 hours after the announcement of Audited financial results for the fourth quarter and year ended on 31st March,2026 for all designated persons,directors/KMP and other designated employees, theirrelatives etc.covered under the Code from time to time.This is for your information.Nitin S.Shah, Company Secretary