The Asia-Pacific (excluding Japan) PC market fell 3% sequentially but grew 32% year-on-year in the fourth quarter of 2009, beating forecasts by 4%, according to research firm IDC.

The firm’s preliminary results show that almost every country posted double digit year-on-year growth, with Portable PCs as a key driver. Lenovo retained that the top spot in the region in fourth quarter of 2009, due to continued momentum in China.

For the fourth quarter of 2009, Lenovo remained the top vendor for the region with a 22.6% of market share, while Hewlett-Packard (HP) reported a top unit growth rate of 58% year-on-year, with a market share of 16.1%. Dell stood third with market share of 9.1% followed by Acer and Asus with 8.7% and 4.6%, respectively.

In full year 2009, the Asia-Pacific (excluding Japan) region PC market grew 14%, up from 9% in 2008 but still short of the 22% achieved in 2007. Lenovo also retained the top spot on an annual basis. IDC expects PC shipments to grow by 16% in 2010 followed by 18% in 2011.

Bryan Ma, director of Asia/Pacific personal systems research at IDC, said: It’s reassuring to see the market getting up on its feet so quickly, although that was of course being compared to a dismal 4Q08 period during the global financial crisis. An insatiable consumer thirst for Portable PCs across both mature and developing markets should continue to fuel 2010 while commercial budgets slowly recover throughout the course of the year.