During the opening ceremony, Weichai Power Co Ltd unveiled the world's first commercialized diesel engine with a base engine brake thermal efficiency exceeding 53 percent, marking a new milestone for the industry.

The product received certification from TUV SUD, a global testing, certification and inspection solution provider based in Germany, during the event.

Last year, Tianjin University restructured to establish the State Key Laboratory of Engines, focusing on "efficiency, zero carbon and intelligence" as primary research directions for the future, aiming to significantly contribute to the country's "dual carbon" goals.

Jin said: "Tianjin stands as a significant hub for China's internal combustion engine industry, with strong foundations in research and development, manufacturing, testing, and component production. The convening of the congress holds particular significance for both the city and the internal combustion engine industry."