刚果（金）东部矿难死亡人数升至300人

Core Insights - A recent landslide in the Rubaya coltan mining area of North Kivu province, Democratic Republic of the Congo, has resulted in at least 300 fatalities and over 100 individuals missing [1] - The majority of the victims were artisanal miners, including women and children, and rescue efforts are hampered by difficult access and limited resources [1] - Since April 2024, the M23 rebel group has controlled the Rubaya coltan mining area, which has led to an increase in illegal mining activities [1] - The coltan ore is a primary source for extracting tantalum, a metal widely used in high-tech applications such as smartphones, electric vehicles, and medical implants [1] - The United Nations estimates that the Rubaya area alone accounts for over 15% of the global tantalum supply [1]