When doing business with "your own folks," they can shift things around among themselves when there is a shortage of goods, and when there are too many, they can help sell them. Add to this that there are several Chinese restaurants of various sizes serving in support, and it's no wonder that the produce business is the territory of Taiwanese.
和「自己人」做生意，缺貨時互相調貨、貨太多又幫著代銷，出貨時間、主力客層也盡量錯開，加上有多家大大小小的中華料理店做後盾，無怪乎青果生意全是台灣人的天下。