CX already covers Macau; there's a direct ferry link to Macau without ever going through immigrations and customs at HKG.


What OW needs is a mainland China carrier that allows access to intra-China routes like Beijing-Shanghai (neither JL or CX has intra mainland-China rights) and which also allows to complete the golden triangle of Tokyo-Seoul-Beijing/Shanghai. Right now it's a one-way street because neither CX or JL doesn't serve the missing Korea-China link. The only way this is possible is to back track to NRT/HND or HKG.