International prices, which have shot up more than 10 percent since the sanctions were announced, will have to rise further to lure exports from China.
Timis's Pan African Burkina Limited (PAB) acquired the rights to the Tambao mine, which it says holds 100 million tonnes of manganese reserves, in June 2012.
Los Mineros Union, led by expat in Vancouver Napoleón Gómez Urrutia, had been fighting since November 2017, to be the legally constituted union at the ELG Mine Complex.