Which of the following activities is considered an on-site mining activity?

Winning coal involves the direct extraction of coal from the ground, which is a core mining operation. This process includes various activities such as drilling, blasting, and transporting coal to the surface, all of which are integral to on-site mining efforts. On-site mining activities are specifically focused on the physical extraction of minerals or resources from the earth, which distinguishes them from other types of activities that may occur in connection but do not involve direct extraction, such as administrative tasks, market assessments, or financial evaluations. Therefore, the activity of winning coal is clearly aligned with the definition of on-site mining activities.