Colombia:
petroleum, natural gas, coal, iron ore, nickel, gold,
copper, emeralds, hydropower
Comoros:
NEGL
Congo, Democratic Republic of the: cobalt, copper, cadmium, petroleum, industrial and gem diamonds, gold, silver, zinc, manganese, tin, germanium, uranium, radium, bauxite, iron ore, coal, hydropower, timber
Congo, Republic of the: petroleum, timber, potash, lead, zinc, uranium, copper, phosphates, natural gas, hydropower
Cook Islands:
NEGL
Coral Sea Islands:
NEGL
Costa Rica:
hydropower
Cote d'Ivoire:
petroleum, natural gas, diamonds, manganese, iron
ore, cobalt, bauxite, copper, hydropower
Croatia:
oil, some coal, bauxite, low-grade iron ore, calcium,
natural asphalt, silica, mica, clays, salt, hydropower
Cuba:
cobalt, nickel, iron ore, copper, manganese, salt, timber,
silica, petroleum, arable land