Peak Resources hauv tebchaws Australia tau tshaj tawm tias lawv yuav tsim lub Hoobkas cais cov av tsis tshua muaj nyob hauv Tees Valley, tebchaws Askiv. Lub tuam txhab yuav siv £1.85 lab ($2.63 lab) los xauj av rau lub hom phiaj no. Thaum ua tiav lawm, lub Hoobkas yuav tsim tau 2,810 tons ntawm cov praseodymium uas muaj cov khoom huv si txhua xyoo.neodymium oxide, 625 tons ntawm cov av tsis tshua muaj carbonate nruab nrab-hnyav, 7,995 tons ntawmlanthanum carbonate, thiab 3,475 tons ntawmcerium carbonate.
