Calcite.
Minerals.
Columbite ore.
Shungite.
Niobium 50%+ teor (collumbium).
Pyrites, iron pyrites.Customs and logistics
Ores.
Lead ore mineral.
Osmium powder.
Vanadium ore and slag.
Other ores.
Calcium metal, calcium silicon, ferro silicon , silicon metal.Trading agent
Activated Bleaching Earth.