If you are ordering from Lik Sang (I assume from your "Hong Kong" reference), you usually have no import tax because lik sang puts the "Value" of the product to under the minimum amount that import taxes will take from (40ish USD) Even my GP32 that cost me $200 was put at a value of $40 so it would go through customs without import taxes. Very nice of them...not to legal I think (on their part, not yours)...but nice all the same
I didnt even notice this until someone on these fourms made a point about it, then I looked on my customs form on the box, and sure enough