Mining Of Metal Ores
Mining Of Other Non-Ferrous Metal Ores, N.E.C. [Titanium ( Ilmenite And Rutile) , Niobium, Tantalum, Vanadium Or Zirconium Ores;Tin Bearing Ores; And, Nickel, Cobalt, Tungsten, Molybdenum, Antimony And Other Non-Ferrous Metal Ores]