A mine moves into development after economics show that the orebody can pay for the investment required. Activities include:
2) Ordering mobile mining equipment.
3) Building mill and/or SX facilities.
4) Building roads and/or bridges.
5) Beginning to strip surface material to get to the orebody.
6) Building housing for employees if necessary.
7) Running small quantities of ore through facilities to test
8) Providing for environmental protection before production starts.