Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Are non-residents or foreigners permitted to buy or own shares of UK companies?
It's easy to own many of the larger UK stocks. Companies like British Petroleum, Glaxo, and Royal Dutch Shell, list what they call ADRs (American Depositary Receipts) on the U.S. stock exchanges. That is, they will deposit local shares with Bank of NY Mellon, JP Morgan Chase, or Citicorp (the three banks that do this type of business), and the banks will turn around and issue ADRs equivalent to the number of shares on deposit. This is not true with "small cap" companies. In those cases, a broker like Schwab may occasionally help you, usually not. But you might have difficulty trading U.S. small cap companies as well.