I can only speak of the products i import. But in 16 years of importing from Spain i never have had such issues.
Cheers
Charlie
Spot on Zedman it all depends where they buy the tiles from. Spain and Italy are the go but tiles from China I would runaway which is Beaumonts preferred supplier by the sounds of it. Hard to prove as they may come from Spain or Italy but were made in China from what I am hearing.