| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 803.61 | USD | 20251021 |
| Shandong Yihe Chem | China national standards | MT | 803.61 | USD | 20251021 |
| Shandong Yihe Chem | China national standards | MT | 803.12 | USD | 20251020 |
| Shandong Yihe Chem | China national standards | MT | 803.12 | USD | 20251020 |
| Shandong Yihe Chem | China national standards | MT | 803.39 | USD | 20251017 |
| Shandong Yihe Chem | China national standards | MT | 802.87 | USD | 20251015 |
| Shandong Yihe Chem | China national standards | MT | 802.87 | USD | 20251015 |
| Shandong Yihe Chem | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Yihe Chem | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Yihe Chem | China national standards | MT | 802.74 | USD | 20251013 |