In Nantou County, the area of tea-producing land has grown threefold in the last ten years, and the production of high-quality tea has increased by a factor of ten in the same period.
以南投縣為例，全縣茶園面積在近十年中成長三倍；而一向能賣得好價錢的高級茶，園區同期內從三百九十六公頃增為三千六百餘公頃，幾乎成長十倍。