Bird Machines - Providing customised mechanisation solutions to the underground mining industry. Designers and manufacturers of equipment for trackless underground mines. South African Institute of Mining and Metallurgy - An institute catering for professional engineers, scientists, technicians, technologists and industries involved in mining, mineral Processing, extraction metallurgy, metals and materials sciences. Octa Engineering Kroonstad - Supply, manufacture and design of mine hoppers, scrapers, material cars, grizzlies, chutes, man carriages and similar products. Karman Vibrating - Manufacture, design and supply of vibrating materials handling products. Rockdrilling Equipment - Sales of equipment and relevant accessories in Polokwane. Trollope Mining Services - Provides surface mining expertise and services including opencast mining, rehabilitation, bulk earthworks, plant hire and road construction.