$SDIG burns low thermal refuse coal which removes toxic waste from old coal sites. The buyer of its energy is the bitcoin network.

In burning the coal it uses limestone (CaCO3) to trap sulfur fumes which creates CaO. Then it aerates the CaCO which "captures carbon dioxide" by reforming limestone (CaCO3).

It then sells the CaCO3 "creation process" for carbon credits.

Then it can reuse the CaCO3 to burn even more refuse coal