40 Treatment of materials, namely, metals and metal ores, by electrolysis or electro-decomposition; treatment of materials, namely, extraction of metals from metal ores by electrolysis; treatment of materials, namely, material processing to obtain metals from native earth materials; Treatment of materials, namely, metals and metal ores, by powder metallurgical processes; treatment of materials, namely, metals and metal ores, by pressing, sintering, hot isostatic pressing, rolling, roll compaction, additive-layer manufacturing, laser sintering, near-net shaping, meltless processing, atomizing, spheroidising, forging, hydriding/dehydriding, vacuum-arc remelting, electron-beam melting, plasma treatment, injection molding, spraying, agglomeration, granulation or drawing