- Helium-3 (nuclear fusion energy), but buried quite deep.
- Extremely high concentrations of Iron and Magnesium Silicates:
- Manufacturing that uses Silicates and Metals
- Some minimal harvesting of exosphere oxygen and hydrogen occurs
- Labor disputes and periodic unrest.
- The Eastern Federation has expansive mining operations on Mercury; a significant proportion of the population is dragooned labor of various types, including debtors and prisoners (often, but not always, political).