2020 Aquatech China(상하이), CN 2019 WETEX UAE, AE 2019 WEFTEC USA, 미국 2019 VIETWATER (하노이), 베트남 2019 Aquatech China(상하이), CN 2018 VIETWATER (하노이), 베트남 2018 Aquatech China(상하이), CN 2018 GD 워터, CN 2017 VIETWATER, 베트남 2017 Aquatech China(상하이), CN 2016 Aquatech China(상하이), CN
