General Motors and its joint ventures set new marks for unit sales in China in the month of June and for the first half of the year. Sales in June rose 23.2% on an annual basis to 176,486 units. For the first half, sales were up 48.5% from the same period in 2009 to 1,209,138 units.

As a comparison, in the US GM sold 195,380 units in June, up 10.7% year-on-year, and 1,080,521 units for the first six months of 2010, up 13.2% from the same period in 2009. GM China sales for 1H2010 thus outpaced US sales by almost 12%.

Shanghai GM’s sales in June rose 18.9% to 71,782 units as the result of rising demand for its Chevrolet lineup, a jump in sales of its Cadillac products and the ongoing strength of its flagship Buick brand.

Sales of SAIC-GM-Wuling’s family of mini-vehicles grew 19.7% on an annual basis in June to 99,115 units, while FAW-GM sales totaled 5,220 units in the commercial vehicle joint venture’s first June reporting sales.

Last month, Chevrolet sales in China jumped 43.3% to 38,304 units, largely due to the strong demand for the Cruze lower-medium sedan and record monthly demand for the New Sail small car of more than 9,000 units. Cadillac sales in June were up 171.3% on an annual basis, as sales of the SRX luxury utility vehicle topped 1,100 units. Buick sales of 36,486 units continued to be buoyed by the Excelle passenger car, which registered sales of more than 17,000 units last month. Wuling sales in June rose 22.3% to 94,295 units, as demand for China’s most popular mini-commercial vehicle—the Sunshine minivan—exceeded 55,000 units for the month. Sales of GM’s imported Opel lineup were up 142.8% from June 2009.