Energy (124)
- Biodiesel (124.1)
- Biogas (124.2)
- Charcoal (124.3)
- Coal (124.4)
- Coal Gas (124.5)
- Coke Fuel (124.6)
- Crude Oil (124.7)
- Electricity Generation (124.8)
- Petrochemical Products (124.9)
- Solar Energy Products (124.11)
- Industrial Fuel (124.12)
- Natural Gas (124.13)
- Other Energy Related Products (124.14)
- Wood Pellets (124.15)
- Solar Energy Systems (124.16)
- Lubricant (124.17)
- Diesel Fuel (124.18)
- Solar Chargers (124.19)
- Solar Collectors (124.21)
- Bitumen (124.22)