Mary Ma, Lenovo's chief financial officer from 1990 to 2007, was in charge of investor relations. Under her leadership, Lenovo successfully integrated Western-style accountability into its corporate culture. Lenovo's emphasis on transparency earned it a reputation for the best corporate governance among mainland Chinese firms. All major issues regarding its board, management, major share transfers, and mergers and acquisitions were fairly and accurately reported. While Hong Kong-listed firms were only required to issue financial reports twice per year, Lenovo followed the international norm of issuing quarterly reports. Lenovo created an audit committee and a compensation committee with non-management directors. The company started roadshows twice per year to meet institutional investors. Ma organized the first-ever investor relations conference held in mainland China. The conference was held in Beijing in 2002 and televised on China Central Television (CCTV). Liu and Ma co-hosted the conference and both gave speeches on corporate governance.