Impiety was also discussed earlier, being my favorite Singaporean metal band. Impiety sounds like they would have been at home in the South American black/thrash scene in the 1980's along with Sarcofago, Vulcano, and Holocausto, or even in the Australian "war metal" scene along with Bestial Warlust, Abominator, and Destroyer 666. They have that same raw and filthy vibe to them. Their music is all about aggression, plain and simple. It's chaotic noise and there never really is a respite in an Impiety album.
FAVORITE ALBUM: FORMIDONIS NEX CULTUS