The Database service canvasses all known large-scale surface coal, metallic and non-metallic mineral mines throughout the world. The developer attempts to include every mine that operates one or more of the machine types identified above. No attempt was made to canvass stone quarries or sand and gravel operations, but a limited number of large operations were included when known to operate some of the equipment listed above. The database was also limited by including only those mines in China and countries of the Former Soviet Union that have purchased equipment internationally.

The Database contains over 1,300 mines/locations including ones that are inactive or under development. Of this total, over 950 active mines/locations worldwide are known to operate one or more of the equipment types listed above. In the vast majority of instances, specific mine sites (including name, address, phone, fax, etc.) have been identified. In limited instances, equipment was identified by corporate groupings above the mine level (e.g. coal-producing entities within the Coal India corporate structure).