Core Viewpoint - A significant landslide incident at the Rubaya coltan mine in North Kivu Province, Democratic Republic of the Congo, has resulted in at least 300 fatalities and over 100 missing individuals, primarily artisanal miners, including women and children [1] Group 1: Incident Details - The landslide occurred between January 28 and 29, with multiple mine shafts collapsing, leading to a large number of miners being trapped [1] - Rescue operations are hindered by difficult transportation and limited rescue resources [1] Group 2: Context and Implications - The M23 movement, a rebel group, has controlled the Rubaya area, which is a significant coltan mining region, since April 2024 [1] - Coltan ore is the primary source for extracting tantalum, a metal widely used in high-tech applications such as smartphones, electric vehicles, fighter jets, and medical implants [1] - The United Nations estimates that the production from Rubaya alone accounts for over 15% of the global tantalum supply [1]