I heard from korean MD of dongyang aqua that thai staff of dongyang aqua worries about form E customs clearance without failure
in case of changing to glovision. so they're hesitating to use glovision now.
please contact shipping to check in detail about documentation and confirm dongyang aqua that glovision can clear it as form E without failure.
after that, they will make a booking to glovision for import shipment from Ningbo soon.