Lenovo personal computer brand in China since 1997. In 2001, "Business Week" named him one of Asia's rising stars in business. Yang was president and CEO of Lenovo until 2004, when Lenovo closed its acquisition of IBM's PC division, after which Yang was succeeded as Lenovo CEO by IBM's Stephen M. Ward, Jr. Ward was succeeded by Bill Amelio on 20 December 2005. In February 2009, Yang replaced Amelio as CEO and has served in that capacity ever since. Yang was chairman of Lenovo's board from 2004 to 2008, and returned as chairman in 2012 alongside his role as CEO. In
Lenovo manufacturing efficiencies. However, Lenovo had failed to meet a key objective of the merger: leveraging the combined strength of the two companies to grow volume and market share. In order to achieve success, Lenovo embraced diversify at multiple levels- business model, culture, and talent. By 2015, Lenovo grew into the world's number 1 PC maker, number 3 smartphone manufacturer and number 3 in the production of tablet computers. Lenovo sold its smartphone and tablet division in 2008 for in order to focus on personal computers and then paid to buy it back in November 2009. , the mobile division ranked