Originally Posted by
l380
I will be flying JAL business class from Hong Kong to Tokyo on the 6th. I am wondering if I have access to The Wing and The Pier. Besides this, I am also a MPC silver member. Thanks.

Oneworld regulations stipulate that to access any OW lounge, you need to be at least OW Sapphire traveling in any class or hold a J boarding pass. If you meet either of those criteria, you can access any J class lounge under Oneworld. So, yup, you can access the Wing or the Pier.