They're pretty hard to find even here in the US. None of the camera shops I've been to here carry the Promaster brand, and I couldn't find any reputable online dealer with Promaster stuff in stock.
In any case, does anyone know what the quality of Promaster stuff is like? They don't seem to be much of a major player as far as photography equipment is concerned, and I'm a bit wary of such off-brand products.