De Haas, 23, recently wrapped up his collegiate career at Clarkson University, where he racked up 24 goals and 50 assists for 74 points during his four years.
All games will be broadcasted on the GNGHockey YouTube channel.
It’s his first time playing outside of North America.
All four players will have a major impact on the Phantoms next season.
Kelly Zajac was also signed to a one-year contract with the Bears. Stanislav Galiev has signed in the KHL.
He will help the Hershey Bears tremendously offensively.
The teams play each other 12 times throughout the year including an outdoor game in January.
Derek Hulak, Matt Willows, Frank Hora, and John Muse have been signed to AHL contracts.
The contract is worth $650,000 in the NHL and $115,000 in the AHL.