Copy of Newspaper Publication

15th 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: Newspapers Advertisement – Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Pursuant to Regulation 30 of SEBI Listing Regulations, we enclose copies of newspapers advertisement published in Financial Express (English) and Dinamani (Tamil), regarding 42nd Annual General Meeting of the Company to be held on Friday, 7th August, 2026 at 3.00 PM (IST) through Video Conferencing / Other Audio Visual Means and information relating to e-voting, in compliance with Section 108 of the Companies Act, 2013 read with rules there under and Regulation 44 of the SEBI Listing Regulations. The above information is also available on the website of the Company www.chemplastsanmar.com Date & Time of occurrence of the information: 15th July, 2026, 9.00 AM (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 FINANCIAL EXPRESS 15 07 2026 DINAMANI 15 07 2026