Yes, he does ship to Canada. If you have to pay import tax and customs depends on the value of you ordered goods (and if you get lucky and your package isn't checked) and has nothing to do with the seller. A little internet search might be useful (=> http://www.cbsa-asfc.gc.ca/import/postal-postale/dtytx-drttx-eng.html).
They carry Asian sizes of course. It may vary with different brands though, so it’s always a good idea to ask the directly before ordering.