In support of bulk ore import, the Customs House carries out weight survey optimization, shifting from batch survey to on-demand survey; upholds advance declaration and deposit-based release to enhance clearance efficiency and relieve tax burden on importers; provides reservation service and remote video monitoring of field operations, online controlling the unloading process; in port storage yard, it guides enterprises to stockpile, rehandle and dispatch bulk ores, with the aim of expediting clearance.