Mining extraction; Mining extraction services; Quarry services; Quarrying services; Consulting services in the field of mining extraction; Consulting services in the field of repair and maintenance of mining equipment; Installation, maintenance and repair of machines; Maintenance of building machines; Maintenance of construction equipment; Maintenance of construction machines; Providing information relating to the repair or maintenance of mining machines and apparatus; Providing information relating to the repair or maintenance of waste crushing machines and apparatus; Providing technical information in the field of mining extraction; Provision of information relating to the repair or maintenance of mining machines and apparatus; Provision of information relating to the repair or maintenance of waste crushing machines and apparatus; Repair and maintenance of mining equipment; Repair and maintenance of mining machines; Repair of mining machinery; Repair or maintenance of conveyors; Repair or maintenance of waste crushing machines and apparatus; Repair or maintenance of construction machines and apparatus