Well if there is a duty/tariff on something made in China, to export to the USA, you can't ship it to Canada to get around the tariff/duty...thats why I say country of origin.
In Costa Rica for example, the differences in taxes/duties on a new item made in Korea, Japan, China, all vary greatly, with China getting favored trade status. Same with EU items, vs USA/Canada.
In CR, if you order a motorcycle part for a BMW and it comes from Atlanta, they still tax the based on country of origin it made it, Germany, because if it if resale, the BMW dealer in CR would import from Germany. Tax can be as as 100% of value...just saying.
Adventure Travel to Colombia, Costa Rica, Nicaragua, Honduras, Guatemala, Mexico, Thailand, Burma, Laos, Cambodia, Vietnam, China, South Africa, Morocco, Turkey, EU, USA National Parks, enjoying culture, cuisine, motorcycling, scuba diving, surfing, sailing, rafting, hiking, fishing, camping, nature, wildlife. Get a Guidebook, and get lost!