If you are physically in China and have valid ID, anybody can open a bank account without restrictions. There is no limit to how much foreign currency you can transfer into China, but there is a $50k per year limit on: 1. Exchange of foreign currency into RMB; and 2. Exchange of RMB into foreign currency; and 3. Wiring foreign currency out of China. There are exceptions to the limits, above, most notably for investment in real estate. It seems, however, that real estate investment as a way to leverage the rise of the RMB is no longer attractive. Seems that ship has sailed. What can someone without a valid ID do?