For section 21 (4) , a coal mine operator is not in control of coal mining operations and associated resources for part of a surface mine if—
(a) a person involved with coal mining operations in the part of the mine can transfer resources to another part of the mine; or
(b) a person involved with coal mining operations in the part of the mine has the general management of another part of the mine; or
(c) a person involved in coal mining in the part of the mine can control the supply of services, including supervision and safety inspections, to another part of the mine.