Big China PC company Lenovo did something that Dell (NASDAQ: DELL) and Hewlett-Packard (NYSE: HPQ) won't. According to Reuters, it "beat expectations by nearly tripling quarterly earnings, riding strong demand for PCs in Asia."

Lenovo would like to get into the business of selling more PCs in the US, but it may be lucky that it does not have too much exposure here. The company gets about 40% of its revenue from China.

The news is a reminder that US PC companies may have a hard time this year. While they sell PCs overseas, they do not have a dominant position in the world's most populated country. In the US and Europe they are up against a resurgent Apple (NASDAQ: AAPL) and products from Taiwan PC company Acer.

Lenovo may do well this year. US PC companies are another matter.

Douglas A. McIntyre is an editor at 247wallst.com.