Yuchai Power Generation Engine Certified for Off-Road Tier 4 Emission Standards

SINGAPORE,May 23,2022 -- China Yuchai International Limited (NYSE: CYD) ("China Yuchai" or the "Company") a leading manufacturer and distributor of engines for on- and off-road applications in China through its main operating subsidiary,Guangxi Yuchai Machinery Company Limited ("GYMCL"),announced today that its model YCA05210-D40,independently developed by Yuchai,has successfully been certified for the off-road Tier 4 emission standards,which will be implemented in the beginning of December 2022 in China.

The Yuchai YCA05 series model meets two emission requirements for ratings between 56kW - 130kW and 130kW - 560kW. The YCA05 engine series features CR+DOC+DPF+SCR emission technologies with an efficient SCR injection strategy to reduce the NOx,PM and PN exhaust pollutants. These technologies successfully deliver an efficient combination of energy saving and environmental protection.

The maximum power of the YCA05210-D40 model is 140kW,making it suitable for 80-120kW generator sets. This model is well positioned for the markets of communication systems,power systems,industrial and mining sectors,road and bridge systems,and other off-road applications.

Weng Ming Hoh,President of China Yuchai commented,"We will continue to expand our portfolio of Tier 4 engines to address the large market opportunities within multiple off-road markets. Together with our National VI-compliant engines for on-road applications,our new Tier 4 engines are making an improvement in enhancing air quality in China."

About China Yuchai International

China Yuchai International Limited,through its subsidiary,engages in the manufacture,assembly,and sale of a wide variety of light-,medium- and heavy-duty engines for trucks,buses,passenger vehicles,construction equipment,marine and agriculture applications in China. GYMCL also produces diesel power generators. The engines produced by GYMCL range from diesel to natural gas and hybrid engines. Through its regional sales offices and authorized customer service centers,GYMCL distributes its engines directly to auto OEMs and retailers and provides maintenance and retrofitting services throughout China. Founded in 1951,GYMCL has established a reputable brand name,strong research and development team and significant market share in China with high-quality products and reliable after-sales support. In 2021,GYMCL sold 456,791 engines and is recognized as a leading manufacturer and distributor of engines in China. For more information,please visit http://www.cyilimited.com.

Safe Harbor Statement:

This news release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The words "believe","expect","anticipate","project","targets","optimistic","confident that","continue to","predict","intend","aim","will" or similar expressions are intended to identify forward-looking statements. All statements other than statements of historical fact are statements that may be deemed forward-looking statements. These forward-looking statements including,but not limited to,statements concerning China Yuchai's and the joint venture's operations,financial performance and condition are based on current expectations,beliefs and assumptions which are subject to change at any time. China Yuchai cautions that these statements by their nature involve risks and uncertainties,and actual results may differ materially depending on a variety of important factors such as government and stock exchange regulations,competition,political,economic and social conditions around the world and in China including those discussed in China Yuchai's Form 20-Fs under the headings "Risk Factors","Results of Operations" and "Business Overview" and other reports filed with the Securities and Exchange Commission from time to time. Among others,if the COVID-19 pandemic is not effectively and timely controlled,our business operations and financial condition may be materially and adversely affected due to a deteriorating market for automotive sales,an economic slowdown in China and abroad,a potential weakening of the financial condition of our customers,or other factors that we cannot foresee. All forward-looking statements are applicable only as of the date it is made and China Yuchai specifically disclaims any obligation to maintain or update the forward-looking information,whether of the nature contained in this release or otherwise,in the future.

For more information:

Investor Relations

Kevin Theiss

Tel: +1-212-510-8922 (new)

Tel: +1-212-521-4050 (old)

Email:cyd@bluefocus.com

View original content:https://www.prnewswire.com/news-releases/yuchai-power-generation-engine-certified-for-off-road-tier-4-emission-standards-301552668.html