A Lenovo Group Ltd sign on display during a January consumer electronics show in Las Vegas, Nevada, US. As it become more competitive globally, the largest Chinese PC maker is facing challenges in innovation and overseas expansion.

Two years ago, Liu Chuanzhi returned to Lenovo, China's largest personal computer manufacturer by market share, as board chairman to sort out a legacy of losses and confused management. Having revamped the company he now feels confident enough to throw down the gauntlet to Apple Inc.

By vowing to give Steve Jobs' company a run for his money earlier this year, Liu shocked the IT world.

But analysts of the industry are heavily divided on this heroic attempt.

Liu came to the rescue of Lenovo at its worst time - after the outbreak of the US financial crisis had thrown the global personal computer market into turmoil. That year, 2009, Lenovo posted a loss of $97 million. With sales plummeting 78 percent because of sluggish corporate demand, a major overseas business focus, Lenovo's global share slipped to 7 percent, which further distanced itself from HP, Dell and Acer, the top three global PC vendors.

Taking the helm again, Liu steered Lenovo away from its reliance on overseas markets that remained crippled by the economic downturn. Instead, he refocused Lenovo's core business on China and other emerging economies, which were the only bright spots in the global economic gloom. He also refocused the company on the growing consumer market, an arena previously strategically eclipsed by the business customer market.

Thanks to the strategic shift, Lenovo has just witnessed its best year. According to the company's fiscal year 2010 report, Lenovo's global market share reached a record 10.2 percent, closing the ground on third place Acer's 11 percent. The company's year-on-year growth in sales exceeded that of all the four major vendors.