According to the CX web site, "The Wing [is] open each day from 6.00am until the last flight of the day departs..."
I would infer from that that you wouldn't have access to The Wing, someone else might legitimately infer that you would have access to The Wing, and someone who has actually taken a SLE flight and tried to use the Wing would be the best source of information!
New Pet Peeve Alert!
CX's lounge in HKG is called The Wing, not The Wings or Wings.
There. That feels better. (Sort of a Wing-Wings whinge.)
[This message has been edited by wideman (edited 11-10-2000).]