However, the plan and prospects on the mutual usage with other JR-group IC cards--Kitaca, which Hokkaido Railway Company (JR Hokkaido) is planning to issue, and SUGOCA, which Kyushu Railway Company (JR Kyushu) is planning to issue--haven't been officially announced by these companies.
一方、他のJR系ICカードである北海道旅客鉄道（JR北海道）が発行予定のKitaca、及び九州旅客鉄道（JR九州）が発行予定のSUGOCAとの相互利用の計画及び見解は現時点では各事業者からは正式には公表されていない。