Mainboard-listed Yongmao Holdings, one of the largest towercranes manufacturers in China, says it will invest RMB28.35 million ($5.9 million) through its unit Beijing Tat Hong Zhaomao Equipment Rental Co. for a 20.25% stake in joint-venture company Si Chuan Tat Hong Yuan Zheng Machinery Construction Co.

Yongmao says the investment will be funded by its internal resources.