China says it wants to open its economy more to the rest of the world, but Beijing keeps a tight grip on technology and access to media. These 11 items are still off limits.
They appear to have run afoul of new rules requiring government approval for foreign companies wanting to provide online content like videos, games and books.
Experts say the regulations in large part reflect what the authorities were already doing, but they are vaguely worded, allowing officials a lot of room for interpretation.