Originally Posted by
Cathay Delight
Once you join into JGC, you can get a permanent OW SAPPHIRE status, even if you are not a frequent flyer!!
Hence, (5)JGC member is prior to MPC SL for op-up, whether JGC member fly on CX or not.
The op-up priority list that's given may not actually be correct. There is a chance it may have changed - or was not correct in the first place. It is not based on a published source.
Regarding how you get OW Sapphire status, as long as you have it, I don't think that CX cares how or why you have it. They just see that you're OW Sapphire and give you the benefits and op-up priority accordingly.