Calendar of events for 30th AGM to be held on 17th September 2026 at 2:00 p.m. (IST) through VC/OAVM

Date: 21st August 2026 BSE LIMITED Department of Corporate Services Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai- 400 001 Dear Sir/Madam Subject: Notice of Book Closure pursuant to Reg. 42 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and E-voting Schedule. Ref.: BSE Scrip ID: CHEMCRUX BSE Scrip Code: 540395 With reference to the above, kindly take note of the Book Closure dates and calendar of events related to the 30th AGM of the Company to be held on Thursday, 17th September 2026 at 02:00 P.M. (IST) through Video Conference / Other Audio-Visual Means SR. NO. PARTICULARS DATE OF EVENT 1. Cut-off date for determining the list of 14th August 2026 shareholders for sending notice of 2. Date of dispatch of Notice 21st August 2026 3. Cut-off date for determining the list of 10th September 2026 shareholders who may cast their vote electronically 4. Record date for determining eligibility 10th September 2026 of shareholders for receiving dividend, if declared at AGM. 5. Book Closure period for the purpose of 11th September 2026 to 17th September 2026 30th Annual General Meeting (both days inclusive) 6. E- voting period 14th September 2026 (9.00 A.M.) to 16th September 2026 (5.00 P.M.) Please take this intimation in your records. Thanking you. For CHEMCRUX ENTERPRISES LIMITED Dipika Rajpal Company Secretary and Compliance Officer