Ginger is needed in many companies where by it is at a high demand since power giving drinks need it e.g weni,kumbutcha,vik one they all need ginger and 30tan of ginger make mwk93,000,000.second idea it's pig farming as pigs are on a high demand and to raise a pig takes 8 to 10 month you may sell it at 1,000,000 or 1,300,000 depending on the size of it