General Updates

14th July, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Bandra Kurla Complex Dalal Street, Mumbai – 400 001 Mumbai – 400 050 Scrip Code - 543336 Scrip Symbol – CHEMPLASTS Dear Sir/Madam, Sub: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Pursuant to Regulations 36 (1) (b) of the SEBI Listing Regulations, we are submitting herewith a specimen of letter which is being dispatched to the Shareholders who have not registered their e-mail addresses with the Depositories/ Registrar Share Transfer Agent of the Company. Date & Time of occurrence of the information: July 14, 2026, 6.30 PM (IST) This is for your information and records. Thanking You, Yours faithfully, For CHEMPLAST SANMAR LIMITED P SRINIVASAN Company Secretary and Compliance Officer Memb No. ACS 10129 Date: July 14, 2026 Folio No.: «DPID» - «HOLDER_FOL» Dear Shareholder, Sub: Access to the Annual Report of Chemplast Sanmar Limited This is to inform that the 42nd Annual General Meeting of the Shareholders of Chemplast Sanmar Limited (“Company”) is scheduled to be held on Friday, the 7th August, 2026 at 3.00 PM (IST) through Video Conference ("VC") / Other Audio Visual Means (OAVM). As per the records furnished by the Depositories and on scrutiny of the shareholder database, we find that your email address is not registered with the Depositories and that the same is not available with the Company’s Registrar and Transfer Agent (“RTA”) - KFin Technologies Limited against your demat account. This letter is to further inform you that pursuant to Regulation 36(1)(b) of the Securities Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, the Annual Report for the Financial Year 2025-26 is made available on the website of the Company, Stock Exchanges and RTA. As your email address is not registered, we are unable to send the Annual report electronically. Hence, you may access the options below to refer the Company’s Annual Report for the Financial Year 2025-26. a) Web link: https://www.chemplastsanmar.com/downloads/cslfinancials/CSL_Annual_Report_2025-26.pdf b) Path: Go to website of our Company www.chemplastsanmar.com and visit the following path. Investor Relations > Annual Report > Financial Year 2025-26 Key details for the 42nd AGM are as under; S. No Particulars Details 1 Date 42nd Annual General Meeting Friday, 7th August, 2026 3.00 PM (IST) 2 Cut-off date to determine the Friday, 31st July, 2026 eligible shareholders to vote and join the AGM 3 Time period for remote e-voting From Tuesday, August 4, 2026 (9.00 AM IST) To Thursday, August 6, 2026 (5.00 PM IST). 4 Last date for publishing results of Tuesday, 11th August, 2026 the e-voting 5 Helpline number for VC For any assistance or support before or during the AGM, participation at the AGM members may Contact Ms Swati Reddy, at evoting@kfintech.com or call KFIN’s toll free No. 1800-309-4001 Further, you are requested to register the email address in respect of shares held in electronic form with the Depository through your Depository Participant(s). For any queries or further assistance, please reach out to the RTA at einward.ris@kfintech.com For Chemplast Sanmar Limited P Srinivasan Company Secretary and Compliance Officer Mem. No. - ACS 10129