The winners of the Men's Pan American Cup were to get direct entry into next year's World Cup, but since Argentina having already qualified for the big event, thanks to a second place finish at last month's Hockey World League semi-final in Malaysia, a world cup ticket was handed to Korea.
Korea had missed out on direct World Cup qualification by finishing fourth in Johor Bahru.
Four more places are up for grabs at the upcoming continental championships in Europe, Asia, Oceania and Africa. Seven women's teams have also been confirmed for the event, with the five remaining places currently available through the continental championships.