To what authority must permits for mining alterations be submitted?

The correct answer is the Director of MHST because this authority typically oversees the regulatory framework governing mining operations, including the submission of permits for mining alterations. The Director of Mining Health and Safety Training (MHST) is responsible for ensuring compliance with safety and environmental standards, which includes reviewing and approving necessary permits before any alterations can take place.

This process is crucial in managing the environmental impacts of mining activities and ensuring that operations are carried out safely and in accordance with established laws and regulations. Other options might suggest different levels of authority or oversight that may not have the jurisdiction over permitting processes in the context of mining alterations.