| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 197.31 | USD | 20251022 |
| Henan Sendi EnvTech | China national standards | MT | 197.38 | USD | 20251021 |
| Henan Sendi EnvTech | China national standards | MT | 197.26 | USD | 20251020 |
| Henan Sendi EnvTech | China national standards | MT | 197.32 | USD | 20251018 |
| Henan Sendi EnvTech | China national standards | MT | 197.32 | USD | 20251017 |
| Henan Sendi EnvTech | China national standards | MT | 197.27 | USD | 20251016 |
| Henan Sendi EnvTech | China national standards | MT | 197.2 | USD | 20251015 |
| Henan Sendi EnvTech | China national standards | MT | 197.12 | USD | 20251014 |
| Henan Sendi EnvTech | China national standards | MT | 197.16 | USD | 20251013 |
| Henan Sendi EnvTech | China national standards | MT | 197.05 | USD | 20251012 |