China's top trade union organization will prioritize setting up unions in all overseas-funded businesses that have been operating in the country for more than five years, particularly the world's four-biggest audit firms…Of the roughly 200,000 foreign-funded corporations in China, 91.4 percent had union representative by the end of 2012, said Wang Ying, a deputy chief overseeing grassroots labor organizations in the All-China Federation of Trade Unions. "There are still enterprises…still reluctant to set up unions," she said…"They worry that establishing a union will increase their costs."…Wang said…that employees at the "Big Four" are forced to work a lot more overtime, and that stress levels were huge. "A union would help them better guard their legitimate rights," she added. "We will fully comply with government requirements in this matter," said…Ernst & Young…[refers to PricewaterhouseCoopers, Deloitte Touche Tohmatsu , KPMG, Bosch Rexroth Hydraulics and Automation]