At least four factors, however, suggest that China's compliance with its WTO obligations could be somewhat problematic. First, China's WTO commitments in services - including telecommunications, finance and distribution – will be more challenging to implement than those for goods for the simple reason that China’s goods market is already relatively open. By contrast foreign investment in many parts of the service sector has remained heavily restricted. For example, with few exceptions, foreign banks operating in China have been restricted to offering banking services only to foreign customers. As a result, although there are more than 150 foreign banks operating in China their share of total financial assets in China on the eve of China’s entry into the WTO was only 1.5 percent. Most of the restrictions that have limited foreign bank expansion will be eliminated five years after China entered the WTO, i.e. December 2006. Thus China’s real market opening under the WTO will be more in the services sector than the goods sector.