Disruption of Operations

July 18, 2026 BSE Limited National Stock Exchange of India Department of Corporate Services Limited Phiroze Jeejeebhoy Towers Exchange Plaza, 5th Floor Dalal Street Plot No. C/1G, Block Mumbai - 400 001 Bandra-Kurla Complex, Bandra (East) Scrip Code: 543336 Mumbai - 400 051 Scrip Symbol: CHEMPLASTS Dear Sirs/Madam, Sub: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Disruptions of operations This is to inform that there was minor fire incident on the morning of 17th July, 2026 at about 10.30 AM at one of our plants viz., Ethylene-Di-Chloride (EDC) manufacturing plant of our Karaikal facility- Puducherry. No one was injured and there are no casualties. The impact of the fire incident is being assessed on the equipment, instruments, and electrical installation in the EDC plant. The Company is taking all necessary measures to restore operations at the EDC plant at the earliest and will provide further updates as and when material developments occur. The details required under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, read with Para B(6) of Part A of Schedule III thereof and SEBI Master Circular No. HO/49/14/14(7)2025-CFD- POD2/I/3762/2026 dated January 30, 2026 is enclosed as Annexure – A. This is for your information and record. Thanking you, Yours faithfully, For CHEMPLAST SANMAR LIMITED P SRINIVASAN Company Secretary & Compliance Officer Membership No. ACS 10129 Annexure- A Details under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, read with Para B(6) of Part A of Schedule III thereof and SEBI Master Circular No. HO/49/14/14(7)2025-CFD- POD2/I/3762/2026 dated January 30, 2026 At the time of occurrence: S. No Requirements Particulars a) Expected quantum of loss/damage caused The Company is in the process of ascertaining the damage caused by the fire. b) whether loss/damage covered by The damage caused due insurance or not including amount; to the fire accident is adequately covered by the insurance. c) Estimated impact on the Not applicable production/operations in case of strikes/lock outs; d) factory/unit where the strike/lock out Not applicable takes place including reasons for such strike.