Of course you can buy boats and sell them elsewhere. I have bought several lasers and I do not remember signing anywhere that I was not allowed to bring this boat out of Europe and resell it there.Nobody, not event ILCA, can buy boats from one builder and bring them into the trademark territory of another builder without that builder's permission.
This is called parallell import and in fact manufacturers trying to prevent this could be in significant trouble with authorities due to anti-competitive behaviour.
There is nothing preventing a company from buying a load of lasers, Mercedes, Lacoste shirts, Redken Shampoos or whatever else where they want to buy and resell where they want. Normally prices will be too similar and this will not be profitable, but when the alternative is zero availability for championships...?
Hello McLaughlin time to put on your boots and buy some Australian Lasers...!