German testing and certification company TÜV Rheinland has been active in China for over 35 years. And now it's aiming expand its presence in southern China's Greater Bay Area. Recently, its CEO Michael Fübi sat down with CGTN reporter Wang Tianyu to discuss the company's investment in China's tech hub Shenzhen, along with the impact of European tariffs on Chinese EV exports and the company's longstanding commitment to sustainability.