Qingling Motors Co said Thursday its business partner, Japan's Isuzu Motors Ltd, is planning to raise its stake in the Chinese light truck maker.

Qingling Motors said Isuzu now holds more than 5% of Qingling Motors' total issued share capital, and the Japan auto maker "has communicated" to the company that it is considering increasing its stake.

"The communication between the company and the strategic shareholder is at a preliminary stage and up to the date of this announcement, no terms have been determined," Qingling Motors said in a statement.

The company didn't specify whether Isuzu is planning to acquire additional stakes from other major shareholders in Qingling, or through the open market.

Qingling shares were suspended Wednesday pending announcement of price-sensitive information. They will resume trading Thursday.

Qingling Motors mainly produces commercial trucks under Isuzu's brand.