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 include the Lenovo notebooks, which were introduced in 2008. Lenovo picked Nigeria in 2013 to release its smartphone because unlike South Africa and other African countries, there is no requirement to partner with a local telecom firm to sell its phones. In the long term, according to Braum, "Lenovo in Africa will focus on continuing to consistently supply personal computer products and allow this market to grow, while moving into new territory such as mobile and enterprise." In the United States, Lenovo began the "For Those Who Do" marketing campaign in 2010, created by the ad agency Saatchi & Saatchi.