1. BOT or BOO contract
- Ecofer invest, own and operate the plant
- Operating fee charged by operated tonnages
- Contract length 5-10 years
2. Operating and/or maintenance service contract
- Customer invest and own the plant
- Ecofer operate and maintenance the plant
- Operating fee charged by operated tonnages
- Contract length 5 years
3. Direct sales contracts
- Customer invest, own and operate the plant
- Ecofer provides maintenance for the plant
