Mining Calendar is an application developed with exclusive functionalities for Cerrejón workers, it shows on its main screen the groups that are working, the one that will work the next day and the payment dates of the current month, in addition to that it contains a menu with many options which are very useful for the workers.

This app was developed with two very important objectives:

1) Make life more comfortable for Cerrejón workers and
2) Reduce the use of paper to contribute to the conservation of the environment.