During the Japanese colonial period, society in the mining area was stratified. Whether in the division of labor, the arrangement of the residential areas, or simply in daily life, "Japanese" and "Taiwanese" were clearly differentiated, with upper and lower classes created within each of these broad classes.
日治時期，礦區會社的組織層級分明，不論在工作分工、住宅區域規劃或生活上，都明顯區分出「日本人」與「台灣人」，然後再分出上下階級。