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Which books contain setting information on Hong Kong?
To get into more obscure sources, parts of the secrets of Power trilogy take place in Hong Kong. There's also a lot of tidbits hidden in the adventure hooks books (Jet Set, Corporate Intrigue, The Twilight Horizon, Artifacts Unbound and Bloody Business), as well as Emergnce and the Bad Moon Rising In The East PDF supplement to Ghost Cartels. There's other (older) adventures set there too, but off the top of my hat I cannot name them.
Plus, of course, the upcoming Shadowrun Returns: Hong Kong game, and the promised accompanying sourcebook. Which will be about ong Kong in the 1050s though. The most recent, in terms of timeline, writeup would be the Almanac, with the most recent
usable writeup being in Runner Havens.