Doosan Infracore is one of the leading construction machinery manufacturers in the world providing construction machinery, machine tools and engine equipments. It has production bases in USA, china and Europe. Since 2000, it has been holding the biggest market share in China and won “the most satisfied excavator in China” for 11 times. The company also pays attention to charity works. Since 2001, it donated over 10 million yuan to China Youth Development Foundation and built 37 primary schools. In 2007, Doosan donated 20 million yuan to build Doosan Training Center.

Established in 2001, Dongyang Mechatronics China is a Korean-owned enterprise located in Fushan High-tech district, Yantai. Its main products include micro-motors, telescopic cranes, concrete conveying equipments, car washers, automobile electronic systems, DC motors, related spare parts and after sales service. The products are sold in China and overseas.