The Party's disciplinary authorities punished more than 160,000 people last year, a 12.5 percent rise from 2011.
The Handan Winter Swimming Association took legal action on Wednesday against the company responsible for a toxic chemical spill that threatens drinking water supplies to thousands of homes in North China.
Construction of urban rail systems in China will continue to grow rapidly this year, which has caused some experts to worry about the financial risks it can pose to local governments.
The penal action against Samsung and LG, and four Taiwan companies sent another signal to the companies to abide by China's Anti-Monopoly Law.
Apple CEO underlines importance of China
China's top securities regulator will step up its review of the 2012 annual financial reports of companies seeking an initial public offering.
Chinese companies have been suffering from a growing number of anti-dumping investigations.
Tim Cook visited China for the second time in less than 10 months, attaching great importance to the world's biggest mobile phone market.
China and Russia pledged to deepen coordination on major international and regional issues during their eighth strategic security consultation in Beijing on Wednesday.
The United States' move to bolster its strategic presence in the Asia-Pacific region to contain China's rise and Beijing's response to it will define the security environment in the region in 2013.
Beijing residents will need to provide identification when they register a new cellphone number or transfer an old one, authorities said on Wednesday.