Doing business in China has been a bit of a holy grail for American companies. It’s a very lucrative market with a growing middle class, but the legal situation and government make it a challenging place for a foreign company to operate. Yum! Brands (NYSE: YUM) has been a leader in the Chinese market with over 5,000 of its KFC locations in the country and a total of over 7,000 eateries across China.