Press Release

Ref. No.: TTL/COSEC/SE/2026-27/33 July 1, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai- 400001, India. Mumbai – 400 051, India. Scrip Code: 544028 Trading symbol: TATATECH Dear Sir / Madam, Subject: Press Release- Tenneco LLC and Tata Technologies Strengthen Global Partnership for Mobility Transformation- A $100 Million Strategic Engagement Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, enclosed herewith is a press release on the captioned subject, the content of which is self- explanatory. This is for your information and records. Thanking you. For Tata Technologies Limited Raghav Mulay Company Secretary and Compliance Officer Encl: as above Tata Technologies Limited Plot No 25, Rajiv Gandhi Infotech Park | Hinjawadi, Pune 411057 | India Tel: +91 20 6652 9090 | Fax: +91 20 6652 9035 CIN L72200PN1994PLC013313 Email: investor@tatatechnologies.com Website: www.tatatechnologies.com PRESS RELEASE Tenneco LLC and Tata Technologies Strengthen Global Partnership for Mobility Transformation- A $100 Million Strategic Engagement  The engagement will draw on India’s deep talent base to accelerate innovation and help Tenneco respond with greater agility to evolving global market needs.  The occasion was formally commemorated at Tata Group headquarters (Bombay House), reflecting the growing strategic importance of the relationship. Mumbai, India, 1 July 2026: Tata Technologies and Tenneco LLC (“Tenneco”), one of the world’s leading designers, manufacturers, and distributors of advanced mobility products for original equipment (OE) and aftermarket customers, marked a significant milestone in their global partnership, reinforcing their shared commitment to scaling future ready capabilities from India. The signing ceremony took place on 30th June and was formally commemorated at Bombay House, Mumbai, the headquarters of the Tata Group. During the ceremony, Jon Bagrosky, Chief Administrative Officer, Tenneco and Warren Harris, CEO & Managing Director, Tata Technologies, signed the agreement, reaffirming the companies’ commitment to advancing technical excellence, digital innovation, and long-term growth. The collaboration also © Copyright 2026 Tata Technologies. All rights reserved. All other Classification: Public | 1 trademarks are trademarks of their respective owners. reflects a long-term strategic commitment, with Tenneco expected to make an investment of over $100 million in this engagement over the next five years. Jon Bagrosky, Chief Administrative Officer for Tenneco, said, “This next phase builds on the strong foundation we’ve established with Tata Technologies and reflects the continued importance of India as a strategic growth region for Tenneco. By expanding this partnership, we are strengthening the capabilities, scale and agility needed to support our customers, respond to evolving market needs and deliver long-term value across our global business.” Warren Harris, CEO & Managing Director, Tata Technologies, said, “Tenneco has been a valued strategic partner, and this expanded engagement reflects the strength of our shared commitment. As Tenneco accelerates its mobility transformation journey, we are proud to bring together deep domain expertise, digital capabilities, and business transformation experience to support Tenneco’s global growth agenda.” Established in 2021, the collaboration has continually grown to support Tenneco’s broader engineering and business transformation priorities. Anchored by Tata Technologies’ Global Engineering Center in Pune, it brings together technical expertise, digital technologies, and AI-enabled capabilities to accelerate product development, improve performance, and deliver sustained value across Tenneco’s global operations. ENDS About Tata Technologies Tata Technologies (BSE: 544028, NSE: TATATECH) is a global product engineering and digital services company helping manufacturers design, develop, and deliver better products. The company partners with global OEMs and enterprises across automotive, aerospace, industrial heavy machinery, and other manufacturing sectors. Driven by its vision of #EngineeringABetterWorld, Tata Technologies enables enterprises to innovate faster and deliver differentiated customer experiences through engineering excellence and digital transformation. With deep domain expertise in Embedded Systems and Software Solutions, Engineering Research & Development (ER&D) Services, and Digital Enterprise Solutions, Tata Technologies helps enterprises accelerate time-to-market, optimize product development costs, improve operational efficiency, and build smarter, safer, and more sustainable products. For more information, visit www.tatatechnologies.com Tata Technologies media enquiries Nikunj Ambegaonker (nikunj.ambegaonker@tatatechnologies.com) Nikita Crasta (+91 22 67574600, Nikita.Crasta@adfactorspr.com) About Tenneco Tenneco is one of the world's leading designers, manufacturers, and marketers of automotive products for original equipment and aftermarket customers. Through our DRiV, Performance Solutions, Clean Air, Powertrain and Champion business groups, Tenneco is driving advancements in global mobility by delivering technology solutions for light vehicle, commercial truck, off-highway, industrial, motorsport and the aftermarket. Visit tenneco.com to learn more. Tenneco media enquiries Alexandra Lordache Vice President, Global Communications media@tenneco.com © Copyright 2026 Tata Technologies. All rights reserved. All other Classification: Public | 2 trademarks are trademarks of their respective owners.