FedEx insists it will build a Taiwan hub which will eventually dwarf Subic Bay, despite the fact that it remains at odds with local officials and has filed complaints with the US authorities. The four main express carriers are pursuing different strategies. FedEx and UPS are focusing on linking Asia to their US networks, while DHL and TNT are placing more emphasis on intra-Asia traffic. FedEx operates its own fleet, while UPS just acquired two B747 freighters for its Asia operations, but is also talking with Nippon Cargo Airlines about sharing capacity. DHL uses third-party uplift. The big unknown is whether Asian shippers, who have longstanding relations with local freight forwarders, will switch time-sensitive cargo to these new entrants. FedEx recently boosted nightly Subic Bay flights from five to seven, but is still having to fill excess capacity with general cargo.