Commodities are raw materials essential for the production of more complex products. Commodities fall into three large categories: agricultural, energy, and metals.
According to this visualization, emerging economies (Brazil, Russia, India Indonesia, China, South Africa, etc.) have the largest reserves of certain key energy and metal commodities such as oil, coal, copper, cobalt, iron ore, molybdenum, nickel, zinc, and aluminum.
Source: Business Insider: 36 Maps That Explain The Entire World