Thorium resources are the estimated mineral reserves of thorium on Earth. Thorium is a future potential source of low-carbon energy.^[1] Thorium has been demonstrated to perform as a nuclear fuel in several reactor designs.^[2][3] It is present with a higher abundance than uranium in the crust of the earth. Thorium resources have not been estimated and assessed with a higher level of confidence, as in the case of uranium. Approximately 6 million tonnes of thorium have been estimated globally based on currently limited exploration and mainly on historical data.^[4][5]

Thorium resources are found widely in over 35 countries all over the world. As there is currently negligible commercial use of thorium, the resources should be considered potentially viable according to the United Nations Framework Classification for Resources. Figures are given in metric tonnes of thorium metal.

Country	Total thorium resources, tonnes Th (rounded)	Remarks
Angola	10,000	Historical data[6]
Argentina	35,910	Recent reassessment[7]
Australia	595,000	[8]
Brazil	632,000	[9]
Canada	172,000	[10]
China	100,000	Possibly many hundred thousand tonnes.[11]
Congo, Democratic Republic of	2,500	[6]
Egypt	380,000	Historical data[12]
Finland	60,000	Historical data[13]
France	1,000	Historical data. Estimated to be from several hundred to a thousand tonnes.[14]
Greenland (Denmark)	86,000	Current active exploration. Possibly up to 684,000 t.[15]
India	846,477	[16]
Iran	30,000	Historical data[17]
Kenya	8,000	Historical data[12]
Kazakhstan	50,000	[18]
Korea, Republic of	6,000	[19]
Madagascar	22,000	Historical data[20]
Malawi	9,000	Historical data[21]
Malaysia	18,000	[22]
Morocco	30,000	Historical data[21]
Mozambique	10,000	[23]
Nigeria	29,000	[23]
Norway	87,000	Historical data[24]
Peru	20,000	[25]
Russia	155,000	[26][27]
South Africa	148,000	[28]
Sri Lanka	4,000	[27]
Sweden	50,000	Historical data[29]
Taiwan	9,000	[18]
Thailand	10,000	Historical data[30]
Turkey	381,000	Historical data[31]
United States of America	595,000	[32]
Uruguay	3,000	Historical data[25]
Uzbekistan	5,000	[33]
Venezuela	300,000	Historical data[25]
Vietnam	5,000	[33]
Others (Africa)	1,000	Historical data[18]
Others (CIS) (excluding Russia, Kazakhstan and Uzbekistan)	1,340,000	[18]
Total	6,245,887

• Thorium
• Occurrence of thorium
• List of countries by uranium reserves
• Thorium fuel cycle
• Thorium-based nuclear power
• Thorium Energy Alliance
• Nuclear power

• International Atomic Energy Agency (2019). World Thorium Occurrences, Deposits and Resources (PDF) (Report).