Corrosion inhibitants in the nature of a coating for drill pipes; Rust preservatives in the nature of a coating for drill pipes; Rust preventatives in the nature of a coating for drill pipes

Mineral processing services, namely, biooxidation of refractory sulfide ores for the recovery of precious metals and base metals

Mineral processing consultation services, namely, technical consultation and research in the field of processing refractory ores to recover precious metals and base metals; and research and development of new methods in the area of mineral processing, for others