Chinese mainland listed companies accumulated a revenue of 17.55 trillion yuan last year.

2. Shenzhen- and Shanghai-listed companies report 37% profit growth in 2010

Shenzhen- and Shanghai-listed companies reported collective net profit growth of 1.66 trillion yuan in 2010, an increase of 37.34 percent over 2009, according to annual reports released by the firms. Industrial and Commercial Bank of China, PetroChina and China Construction Bank were the top three most profitable companies in 2010 respectively. The 2,175 mainland-listed companies brought in total revenue of 17.55 trillion yuan in 2010, a rise of 34.08 percent year-on-year. The firms reported average return on equity of 14.5 percent last year, up slightly from 14.2 percent in 2009. Earnings per share were 0.497 yuan, exceeding 2007's historic high of 0.419 yuan.