[China Yuchai International Announces Singapore, Singapore — August 8, 2011 China Yuchai International Limited (NYSE: CYD) The financial highlights for the second quarter of 2011 are: • Net revenue was RMB 4.0 billion (US$ 620.7 million); • Total number of diesel engine units sold was 139,236 compared with 132,092 units in the second quarter of 2010; • The gross margin] [CHINA YUCHAI INTERNATIONAL LIMITED 30 June 2011 30 June 2010 RMB '000 US$ '000 RMB '000 US$ '000 Revenue, net 4,017,242 620,749 4,016,043 620,564 Cost of goods sold 3,246,139 501,598 3,120,913 482,248 Gross profit 771,103 119,151 895,130 138,316 Other income (21,353 ) (3,300 ) (17,179 ) (2,655 ) Research & development costs]

[China Yuchai International Announces Singapore, Singapore August8, 2011 China Yuchai International Limited (NYSE: CYD) The financial highlights for the second quarter of 2011 are: Net revenue was RMB 4.0billion (US$ 620.7million); Total number of diesel engine units sold was 139,236mpared with 132,092 units in the second quarter of 2010; The gross margin was 19.2%, down] [CHINA YUCHAI INTERNATIONAL LIMITED 30 June 2011 30 June 2010 RMB '000 US$ '000 RMB '000 US$ '000 Revenue, net 4,017,242 620,749 4,016,043 620,564st of goods sold 3,246,139 501,598 3,120,913 482,248 Gross profit 771,103 119,151 895,130 138,316 Otherome (21,353 ) (3,300 ) (17,179 ) (2,655 ) Research & developmentsts]

[CHINA YUCHAI INTERNATIONAL TO ANNOUNCE - Audio Web Cast to Begin at 8:00 AM EDT - Singapore, Singapore – July 25, 2011 http://www.cyilimited.com The webcast can be accessed at the investor relations section of the Company’s website located at About China Yuchai International http://www.cyilimited.com China Yuchai International Limited, through its subsidiary, Guangxi Yuchai Machinery Company Limited (“GYMCL”), engages in the]

[CHINA YUCHAI INTERNATIONAL TO ANNOUNCE - Audio Webst to Begin at 8:00 AM EDT - Singapore, Singapore July25, 2011 http://www.cyilimited.com The webcastn be accessed at the investor relations section of thempanys website located atout China Yuchai International http://www.cyilimited.com China Yuchai International Limited, through its subsidiary, Guangxi Yuchai Machinerympany Limited (GYMCL), engages in the manufacture,sembly, andle]

[China Yuchai Announces Issuance of Second Tranche of Short Term Financing Bonds by its Key Singapore, Singapore – July 22, 2011 China Yuchai International Limited (NYSE: CYD) The second tranche of the Bonds will bear a fixed annual interest rate of 5.65%. Subscription to and trading of the Bonds is only available in China to institutional investors of China’s National]