Metallurgical engineering and extractive metallurgy are specialist fields that deal with the extraction of metals and mineral products from their ores through the application of science and engineering principles. Metallurgical engineers and extractive metallurgists are responsible for the design and development of the best process to treat a particular ore, the efficient operation of the processing plant to convert the ore into metal and other products, and the disposal of wastes - all in a safe and environmentally responsible manner. Students with an interest in chemistry, mathematics, engineering, management and travel often make successful metallurgical engineers or extractive metallurgists.