Wärtsilä Corporation and Zhuhai Yuchai Marine Power Co Ltd, a subsidiary of Guangxi Yuchai Machinery Group Co Ltd, have jointly signed a licence agreement for the manufacture and sale of Wärtsilä RT-flex low-speed marine diesel engines by Zhuhai Yuchai Marine Power in China. The agreement grants Zhuhai Yuchai Marine Power the right to manufacture all sizes of Wärtsilä RT-flex modern low-speed engine types at its new factory in Zhuhai City, Guangdong province. However, Zhuhai Yuchai Marine Power will focus on engines of 35 to 50 cm cylinder bore. The main attraction of the new licence agreement for Zhuhai Yuchai Marine Power is Wärtsilä's programme of RT-flex engines with common-rail technology.