By 1961, the amount of land on which Assam tea was being grown in Taiwan had reached over 1800 hectares, with Nantou's plantations accounting for 1700 of those.
1961 年台灣種植阿薩姆紅茶面積已達一千八百餘公頃，其中南投茶區就佔 1700 公頃。