Is that a requirement for dumping? From a legal/WTO case standpoint, yes. Selling at a loss in general is perfectly legal, and lots of companies do that for al

Is that a requirement for dumping? From a legal/WTO case standpoint, yes. Selling at a loss in general is perfectly legal, and lots of companies do that for all kinds of perfectly legitimate reasons. Using price discrimination to sell at a loss only in certain markets with the intention of damaging the domestic market in that region is when you get into trouble.