General Updates

TENNECO CLEAN AIR INDIA LIMITED (formerly known as Tenneco Clean Air India Private Limited) CIN: L29308TN2018FLC126510 Telephone: +2135 612501/506 Email: Tennecoindiainfo@tenneco.com Website: www.tennecoindia.com Date: November 10, 2026 To To National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G Phiroze Jeejeebhoy Towers Bandra Kurla Complex, Dalal Street, Bandra (E), Mumbai – 400051 Mumbai – 400001 Scrip Symbol: TENNIND Scrip Code: 544612 Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Intimation regarding ESG Rating Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we wish to inform you that SES ESG Research Private Limited (“SES ESG”), a SEBI-registered ESG Rating Provider under Category II (Registration No. IN/ERP/Category- II/0002), has assigned an ESG score of 62 to Tenneco Clean Air India Limited (“Company”), based on FY 2025-26 data of the Company. Please note that the Company has not engaged SES ESG Research Private Limited for the aforesaid ESG rating and the assessment has been independently undertaken by SES ESG based solely on publicly available information, including the Company's Annual Report, Business Responsibility and Sustainability Report and other public disclosures. The above disclosure is being for the information of the stakeholders. Kindly take the above information on record. Sincerely, For Tenneco Clean Air India Limited (Formerly known as Tenneco Clean Air India Private Limited) Roopali Singh Company Secretary and Compliance Officer Membership No: A15006 Place: Gurugram Registered Officer: RNS2, Nissan Supplier Park, SIPCOT Industrial Park Oragadam Industrial Corridor, Sriperumbudur, Taluk, Kancheepuram, Kancheepuram, Tamil Nadu, India, 602105