In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating that the amount of the deposits could amount to over 25% of the world's then known uranium reserves of 800,000 tons. In 1984, the IUREP Orientation Phase Mission to Somalia reported that the country had 5,000 tons of uranium reasonably assured resources (RAR), 11,000 tons of uranium estimated additional resources (EAR) in calcrete deposits, as well as 0–150,000 tons of uranium speculative resources (SR) in sandstone and calcrete deposits. Somalia evolved into a major world supplier of uranium, with American, UAE, Italian and Brazilian mineral companies vying for extraction rights. Link Natural Resources has a stake in the central region, and Kilimanjaro Capital has a stake in the  Amsas-Coriole-Afgoi (ACA) Block, which includes uranium exploration.