日據時代金瓜石所有礦業有關權益只准日人會社專有,臺灣人只能間接從田中組和承包做小規模手工開採,基隆顏家或瑞芳李家重未介入金瓜石礦業開採事宜。總而言之,礦業世家起落隨市場消長是自然潮勢。到底是粗重勞苦,薄利危險的工作。除了工地立即危險,如塌方落石,爆炸起火,氫化鉀中毒,工地意外,還有終生綿延的黑肺病(矽肺)負擔。Hundred years of mining history here has not been duly regarded as glorious and respectable , that should be, and over due.