The country has valuable mineral deposits as a result of its complex geologic structure and high level of seismic activity. The Philippines are thought to have the second-largest gold deposits after South Africa, along with a large amount of copper deposits, and the world's largest deposits of palladium. Other minerals include chromite, nickel, and zinc. Despite this, a lack of law enforcement, poor management, opposition due to the presence of indigenous communities, and past instances of environmental damage and disaster, have resulted in these mineral resources remaining largely untapped.