Geocoding UK or China

All attempts to use the Google Maps API geocoder on addresses in the UK or China currently fail with code 603 (G_GEO_UNAVAILABLE_ADDRESS) indicating that legal or contractual reasons prevent Google from returning the information. The Maps API geocoder provides detailed geocoding for Andorra, Australia, Canada, France, Germany, Italy, Japan (but only in Japanese), Netherlands, New Zealand, Spain, and United States of America (e.g. "4144 Avenue Pierre-De-Coubertin, Montréal, Canada"). For countries other than the UK and China it provides geocoding for country names and city names (e.g. "Nairobi, Kenya").