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Investigation results of a mining collapse in Chuxiong, Yunnan resulting in 5 deaths: The company has been illegally and improperly mining for a long time, with multiple departments neglecting their oversight responsibilities. The company in Chuxiong, Yunnan has been illegally excavating and mining the tailings pond, causing the outer slope of the tailings to continuously increase in height and steepness, eventually leading to the collapse accident. This incident buried 5 trucks, 1 excavator, 4 drivers, and 1 villager working in a field about 1200 meters downstream. The Chuxiong Emergency Management Bureau released the "Report on the investigation of the '5.5' major collapse accident at Lufeng Wuding County Jianfeng Econo-Trade Co., Ltd." on January 14, 2026. On May 5, 2025 at 8:38 am, a major collapse accident occurred at the tailings dumping site of Jianfeng Econo-Trade Co., Ltd. in Wuding County, Lufeng City, Chuxiong State, resulting in the deaths of 5 people and direct economic losses of about 13.75 million yuan. The investigation report concluded that the "5.5" major collapse accident at Lufeng Wuding County Jianfeng Econo-Trade Co., Ltd. in Chuxiong was caused by long-term illegal and improper mining and tailings deposition, leading to the formation of excessively high and steep slopes. Over time, the tailings deposit was soaked and softened by free water, causing the slopes to become unstable. Negligence and failures in oversight by relevant departments, as well as the local Party committees and governments, allowed significant risks to persist, leading to this production safety accident.