 SINGAPORE, July 28, 2021 PRNewswire -- China Yuchai International Limited NYSE: CYD China Yuchai or the Company, announced today that it will be releasing its 2021 unaudited first half financial results on Wednesday, August 11, 2021 before the market opens for trading. A conference call and audio webcast for the investment community has been scheduled for 8:00 A.M. 