What business should I put up (in the Philippines)?

What are ur interests in life? That could be a factor for the success of ur proposed business if you apply those things that you are good at and capable of... but honesty 30k is a bit short but if you are wise and willing, then what the hell, bring it on! Carwash business, Food cart, goto and lugawan, barbiQhan, Shake(like Zagu), Vulcanizing shop, small barber shop, vegetable/fish/meat vendor, egg supplier, balut/itlog na pula,puti,kulubot at lahat ng itlog.lol sari-sari store, recycled products, small poultry(45days), and many other small businesses that are fit to ur tight budget. Goodluck.