Ku Chao-chieh, vice chairman of the Hsinyi Farmers 'Association Winery, says that Hsinyi Township has been exporting dried salted prunes to Japan for years. During the boom years from 1981 to 1993, 5 million tons of dried prunes were exported annually. The remainder of the plum crop was processed into crisp prunes, plum vinegar, and preserved plums.
信義鄉農會酒莊副廠長辜昭傑指出，信義鄉早年以梅胚（鹽漬青梅）外銷日本，全盛時期的 1981 年至 1993 年間，一年外銷梅胚平均有 500 萬公噸，其餘多被製成脆梅、梅醋、蜜餞等加工食品。