On August 17, Weichai held a ceremony for the delivery of the 400,000th National VI engine off the assembly line, the grand opening of the "National VI Service Weichai Service" activity of 100,000 elites in thousands of stores in thousands of cities, and officially sounded the National VI service assembly call. The China Internal Combustion Engine Industry Association sent a congratulatory letter, praising that this is a great event in the industry.

The China Internal Combustion Engine Industry Association stated in the congratulatory letter that, as a leading company in the internal combustion engine industry, Weichai has always been at the forefront of the industry in terms of energy saving and emission reduction. On October 9, 2018, Weichai's WP4.6N engine was the first to pass the national VIB official certification for heavy-duty diesel engines; on February 4, 2021, Weichai's WP2.3NG non-road engine obtained the first non-road four-stage environmental protection information disclosure in China one. On September 16, 2020, Weichai released the world's first commercial diesel engine with a thermal efficiency of over 50%, setting a new benchmark in the world's internal combustion engine industry and further demonstrating Weichai's strength and responsibility. Weichai held the 400,000th National VI engine off-line ceremony, achieving a new breakthrough in the national VI production and sales scale, which has an important impact on the development of the industry.

The congratulatory letter stated that my country is the world's largest producer and marketer of internal combustion engines. Internal combustion engines are the largest industry in my country's oil consumption. Carbon dioxide emissions account for 10% of the country's total, nitrogen oxide emissions account for 30%, and particulate matter emissions exceed 600,000 tons. Promoting energy conservation and emission reduction in the internal combustion engine industry has become a major strategic demand of our country and an important starting point for winning the battle against the blue sky and implementing the prevention and control of air pollution. Weichai took this event as an opportunity to continuously innovate and make new contributions to promote the healthy and rapid development of the internal combustion engine industry, help the country win the battle against the blue sky, and build a beautiful China and a better world!Editor/Baohongying