Pursuant to the provisions of SEBI PIT Regulations (including any amendments thereto from time to time) and the Company''s Code of Conduct for regulating, monitoring and reporting of trades by Directors, Designated Persons and their immediate relatives under the SEBI PIT Regulations, the 'Trading Window' for dealing in securities of the Company shall be closed effective from Thursday, October 1, 2026 and shall remain closed till the expiry of 48 ....

CRESTCHEM LIMITED Corporate Office:303B, Central Business Space, Opp: Fortune Land Mark Hotel, Opp: HDFC Bank, Near Usamanpura Cross Road, Ashram Road, Ahmedabad-380013. Phone: +91-9409119484, Email: info @crestchemlimited.in GST Number : 24AAACC8722C1Z5 CIN NO. L24100GJ1991PLC015530 WEBSITE: www.crestchemlimited.in Date: 26.09.2026 BSE Limited, Dept of Corporate Services, Phiroze Jeejeebhoy Towers, 25th Floor, Dalal Street, Mumbai-400001 Scrip Code: 526269 Subject: In1ma1on regarding closure of Trading Window under the SEBI (Prohibi1on of Insider Trading) Regula1ons, 2015 (“SEBI PIT Regula1ons”) Dear Madam/ Sir, Pursuant to the provisions of SEBI PIT Regula/ons (including any amendments thereto from /me to /me) and the Company's Code of Conduct for regula/ng, monitoring and repor/ng of trades by Directors, Designated Persons and their immediate rela/ves under the SEBI PIT Regula/ons, the ‘Trading Window’ for dealing in securi/es of the Company shall be closed effec/ve from Thursday, October 1, 2026 and shall remain closed /ll the expiry of 48 hours a=er the declara/on of Un-audited (Standalone and Consolidated) Financial Results of the Company for the quarter and half year ending September 30, 2026,by the Board of Directors at the ensuing Board Mee/ng. This in/ma/on is also being uploaded on the Company's website at www.crestchemlimited.in This is for your informa/on and further dissemina/on. Thanking you. Yours faithfully, For CRESTCHEM LIMITED, IndrajyotSingh R. Bagga Asst .Company Secretary & Compliance Officer ACS-81745 Reg. office: Sr. No. 550/1, Sub Plot o. 12, Village Indrad, Taluka -Kadi, District- Mehsana, Pin code-382715, Gujarat