楚雄三街煤业开发有限公司的前身为地方国有楚雄市三街煤矿,筹建于1973年8月,地处云南省楚雄市西南部的三街镇境内,距楚雄维彝族自治州首府鹿城113公里,为9万吨/年的生产建设规模。开采的煤种为优质三号无烟煤,最高发热量为8060大卡,最低发热量为6000大卡,平均发热量为6500大卡左右,灰份下超过18％,含硫量1％以下。由于该产品具有发热量 Chuxiong Third Street Coal Development Co., Ltd. was formerly known as the Third State-owned Chuxiong Coal Mine in Chuxiong County. It was established in August 1973 and is located in Sanjie Town, southwest of Chuxiong City, Yunnan Province, 113 kilometers away from Lucheng, the capital of Chuxiongwei Yi Autonomous Prefecture. For the 90,000 tons / year production scale. Coal mining for the quality of No. 3 Anthracite, the maximum heat of 8060 kcal, the minimum heat of 6000 kcal, the average heat of about 6500 kcal, more than 18% of ash, sulfur content below 1%. Because the product has calorific value