Originally Posted by marcuslai
OW rules say that if you have a J or F boarding pass, u can access the J or F lounges of any OW airline. exceptions exist, usually for crowd control. but at least at HKG, if u hold a QA or BA J or F boarding pass, you can (and shoulld) use the respective CX lounges.
YOUR INFORMATION IS JUST PLAIN WRONG
*A rules say a j pax can enter any *A business lounge OW has no such rule!