2020年6月30日2021年4月1日 ecsyu_staff 2020(April) - 2021 (March) Yuya HaradaChairTensho NakamuraVice ChairSatoshi ChubachiSecretaryToru SuzukiTreasurer 2019 (April) - 2020 (March) Yuki TsudaChairYuji HiraiVice chairTensho NakamuraSecretaryNobuyuki NishiumiTreasurer 2018 -2019 (March) Sun HeChairAhmed KumkumVice chairYuji HiaiSecretaryHirotaka TakahashiTreasurer