Yuchai K08 Engine Becomes First in China to Pass National VI-b Certification

SINGAPORE,Oct. 15,2018 -- 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,on October 1,its K08 model engine became the first diesel engine model to pass the National VI-b certification in China.

Considered the most stringent and advanced emission certification test in China,the entire certification process for Yuchai's K08 model by National Motor Vehicle Quality Supervision and Inspection Center (Tianjin) was conducted at Vehicle Emission Control Center ("VECC") under full video surveillance. The inspection covered engine and after-treatment system preparation,engine test stand connection,engine emission certification test,On-board Diagnostic (OBD) test,NOx control certification test,to Portable Emission Measurement System (PEMS) certification. Yuchai's K08 model significantly outperformed the standard with its NOx emission 40% better than the National VI standard,CO and HC emission approaching zero,Particulate Matter (PM) emission 80% better and maximum Particulate Number (PN) 77% better than respective National VI standards.

Weng Ming Hoh,President of China Yuchai,commented,"First and foremost,we are thrilled with this achievement as our product's environmental protection milestone coincides with China's 'Blue Sky' strategy. We have already developed 14 National VI compliant diesel engines and natural gas engines models ranging from 100 to 650 horsepower. With this new certification,we have again taken the lead in emission controls in the Chinese automotive markets."

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,the Company 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 2017,GYMCL sold 367,097 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 the Company's operations,financial performance and condition are based on current expectations,beliefs and assumptions which are subject to change at any time. The Company 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 the Company'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. All forward looking statements are applicable only as of the date it is made and the Company 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,please contact:

Kevin Theiss

Tel: +1-212-521-4050

Email: cyd@bluefocus.com

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