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at six locations in Chiêm Hoá, with reserves of (in zone of Lang Bai level Cl + C2)- 170,149 tonnes
* Antimony with reserves of 1,191,000 tonnes
:Khuon Phuc, Lang Vai and Hòa Phú mines have also been explored with nine ore sites: Lang Can, Phieng Giao, Lang ai, Na Mo, Khuon Vai, Coc Tay, Nui Quit and Lung Luong, Nui Than. Barite has been found at 24 ore sites, which could be exploited by open cast mines, in Son

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