About three-fourths of world's cobalt, a metal required for the manufacture of batteries for electric motor vehicles, is produced by

The Democratic Republic of the Congo (DRC) is the world's leading producer of cobalt, accounting for approximately 70% of the global supply required for lithium-ion batteries. While Argentina is a major producer of lithium as part of the "Lithium Triangle," it does not possess significant cobalt reserves, making it a common point of confusion for battery-related minerals. This question tests the core concept of the geographical distribution of critical minerals and strategic resources essential for the global green energy transition.