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: August 21, 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 Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with Schedule III, we would like to inform that, the Nomination and Remuneration Committee (“NRC”) of Tenneco Clean Air India Limited (“the Company”), has on August 21, 2026 approved the grant of 2,00,453 employee stock options to the eligible employees under Employee Stock Option Plan 2025 (“ESOP Scheme”) of the Company, within the shareholders approved limit of 8,072,086 options. The required information, in compliance with Para B of Part A of Schedule III to the SEBI Listing Regulations read with the SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, is enclosed as Annexure A. Further, the above information is also being made available on the website of the Company at https://tennecoindia.com/investor-relations in accordance with Regulation 46 of the SEBI Listing Regulations. 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 Encl: As above Registered Office: RNS2, Nissan Supplier Park, SIPCOT Industrial Park Oragadam Industrial Corridor, Sriperumbudur, Taluk, Kancheepuram, Tamil Nadu, India, 602105 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 Annexure-A The details, as required under the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, are as under: Sl. No. Particulars Details 1 Brief details of stock options granted 2,00,453 Options were granted to eligible employees by Nomination and Remuneration Committee under the Tenneco Clean Air India Limited Employee Stock Option Scheme 2025. 2 Whether the scheme is in terms of SEBI Yes (Share Based Employees Benefits and Sweat Equity) Regulations, 2021 3 Total number of shares covered by these 2,00,453 (Each stock option is convertible into one fully paid-up equity share having a face value of INR 10 options each). 4 Pricing formula (Exercise Price) 2,00,453 Options at INR 10/- per stock option as Exercise Price 5 Options vested Not applicable 6 Time within which option may be The exercise period shall be 5 years from the date of exercised; vesting subject to the terms and conditions of the Scheme. 7 Options exercised Not Applicable 8 Money realized by exercise of Options Not Applicable 9 The total number of shares arising as a Not Applicable result of exercise of Options 10 Options lapsed Not Applicable 11 Variation in terms of Options Not Applicable 12 Brief details of significant terms As defined in the ESOP Scheme 2025 which was ratified by the shareholders post IPO of the Company via Postal Ballot Notice dated March 25, 2026. Link to the Postal Ballot Notice – Click here 13 Subsequent changes or cancellation or Not Applicable exercise of such Options 14 Diluted earnings per share pursuant to Not Applicable the issue of equity shares on exercise of Options Registered Office: RNS2, Nissan Supplier Park, SIPCOT Industrial Park Oragadam Industrial Corridor, Sriperumbudur, Taluk, Kancheepuram, Tamil Nadu, India, 602105