TCASII. DURING CLB FROM HKG HDG INTO TPE AIRSPACE; FLC RECEIVED TCASII AND FOLLOWED RA TO DSND. THEY NOTIFIED HKG CTLR OF TCASII AND DSCNT AND CTLR PROVIDED HDG FOR BETTER SEPARATION.

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XX30Z; JUN/XX/96; 175 MI E OF HKG. FO FLYING; CAPT ON RADIOS. CLBING OUT OF HKG; ELATO 1 ALPHA DEP. CLRED TO FL330. WE HAD BEEN ON RADAR VECTOR HDG 095 DEGS. DUE TO WX WE ASKED FOR HDG OF 060 DEGS; 'APPROVED.' WE WERE ON 060 DEG HDG ABOUT 2 MINS THEN REQUESTED 'DIRECT ELATO' THROUGH HOLE IN WX. 'APPROVED;' NOW DIRECT ELATO. CLBING THROUGH FL300 IN CLOUDS; TCASII 'TFC; TFC' TA. YELLOW HALF CIRCLE STARTING TO SHOW ON TOP OF VSI. IMMEDIATELY CHANGED TO RED SQUARE AND AVOIDANCE RA 'DSND; DSND.' FO IMMEDIATELY RESPONDED BY PULLING OFF PWR AND PUSHING NOSE DOWN. I CALLED HKG; ADVISED OF 'TCASII RA; 'DSNDING.' APPROX 3-5 SECONDS LATER; EXCITED CTLR TOLD US TO TURN L 'HDG 360 DEGS.' GAVE OTHER ACFT A S HDG. WE WERE BASICALLY ALREADY CLR OF OTHER ACFT AT THIS TIME. WAS TOLD TO MAINTAIN FL290. WE NEVER SAW THE OTHER ACFT (IN CLOUDS). TCASII AND US KEPT THE 2 ACFT FROM HITTING. CTR WAS NO HELP. THIS IS A HDOF AREA FOR HKG AND TPE. INBOUND AND OUTBOUND TFC HAVE TO CROSS THIS POINT. SHOULD HAVE 'ENTRY' AND 'EXIT' POINTS AT DIFFERENT PLACES. WX VERY COMMON AT ALL TIMES OF YR. WE WERE CLRED TO FL330 CLBING THROUGH FL305 WHEN TCASII SOUNDED. THANK GOD FOR TCASII. IF NOT; IT WOULD HAVE SPOILED THE WHOLE TRIP.