I needed an unusual bottom bracket to swap a group from an old Serotta Colorado to Grandis frameset and took a chance on ordering from a Taiwan eBay seller. The item arrived in 16 days with no tariff/duty due from me. YMMV, but this worked out for me. The package seemed to have been shipped from Taiwan to a U.S. intermediary, then sent via USPS within the U.S.
Now wondering how I would fare ordering a couple of items from Grand Bois in Japan. I think they usually ship by DHL, so I imagine I would have to pay the tariff (15%?) upon delivery.