Cyril Oehen will join EHC Olten from EV Zug's organization, where he spent most of his hockey career so far. Becoming part of the Bulls' youth department in 2011, the forward debuted for EVZ Academy during the 2016-17 season. This season, the 21-year-old was named captain.
Jerôme Portmann will also bring more Swiss League experience to Olten. The forward, a product of HC Davos, has mainly suited up for the HCB Ticino Rockets for the last two seasons, as well as for HC Thurgau and EHC Visp the years before. In the National League, the 23-year-old has made 39 appearances so far.