| Date | Contract | Suppliers | Procedure | Awarded |
|---|---|---|---|---|
| 2023-05-05 | Request for the provision of National Litter Pollution Monitoring System | TOBIN Environment and Planning | Open Procedure | — |
| 2021-06-02 | Requests for tender for the provision of a National Litter Pollution Monitoring System | TOBIN Environment and Planning | Open Procedure | — |
| 2019-03-01 | National Litter Pollution Monitoring System | TOBIN Environment and Planning | Open Procedure | — |