Beijing Daxing International Airport, IATA code PKX, is an airport in China. PKX may also refer to: POSCO, traded as PKX on NYSE Tetracapsuloides, called PKX organism before it was identified Gumdoksuri-class patrol vessel, including PKX-A and PKX-B This disambiguation page lists articles associated with the title PKX.If an internal link led you here, you may wish to change the link to point directly to the intended article.