The two secured invitations through the International Olympic Committee’s qualification systems.
This allows the best athletes in each sport to participate in the Games primarily through the continental qualification of athletes and teams.
Katua (60kg) is PNG's first Commonwealth Youth Games gold medallist and will look to build on his Pacific Games and Commonwealth Youth Games gold medals from 2015.
Baru (62kg) on the other hand is currently PNG's top male lifter and won gold at the recent Oceania Championships. He also won best lifter of the championship title.