From a business traveller newsletter:
China Inks Aviation Deal With United States
BUILDING ON AN AGREEMENT BETWEEN THE TWO COUNTRIES
SIGNED IN 2004, China and the United States have
signed a new bilateral aviation agreement. Under the
new agreement, the number of weekly flights between
the two nations will rise from 54 to 249 and the
number of permitted carriers from four to nine. U.S.
airlines will be allowed to add new flights in 2006,
2008 and 2010, and build hubs in China starting in
2007. Also, restrictions on 12 U.S. and five Chinese
cities will be lifted.