Phillipines are covered in details in
Cyberpirates, with updates in
Year of the Comet and
Dragons of the Sixth World. Japan is touched upon in
Year of the Comet and
Sprawl Survival Guide.
Brainscan makes a trip to Hong Kong but I don't know how much it is decribed (Me? Playing an adventure I didn't write?!

).
Target:Awakened Lands and
Dragons of the Sixth World describe some events taking place in Central China, and the later also discuss events in Beirut.
Target:Wastelands covers the deserts of Arabia and some other in Central Asia (Gobi, Lout, ...).
Shadows of Asia should cover all those and be out near the end of the year.