Which class of mine has the highest number of workers?

In mining classifications, "Class A" typically refers to the category of mines that employ the most extensive workforce due to the scale and nature of their operations. These mines often encompass larger extraction sites with more complex machinery and operational routines, necessitating a significant number of workers to manage tasks ranging from excavation to transportation and maintenance.

Class A mines are also characterized by their capacity to handle large volumes of material, which contributes to the higher employment numbers since various roles, including supervisory, operational, safety, and support positions, are required to ensure efficient and safe mining activities.

The other classes, although they may have their own operational structures and workforce needs, generally do not require the same level of staffing as Class A mines. Class B, C, and D typically have smaller operations or specialized functions, leading to fewer workers being employed overall in these classifications.