| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yaowang Chem | China national standards | MT | 317.22 | USD | 20251025 |
| Shandong Yaowang Chem | China national standards | MT | 317.11 | USD | 20251022 |
| Shandong Yaowang Chem | China national standards | MT | 317.13 | USD | 20251019 |
| Shandong Yaowang Chem | China national standards | MT | 317.13 | USD | 20251017 |
| Shandong Yaowang Chem | China national standards | MT | 317.04 | USD | 20251016 |
| Shandong Yaowang Chem | China national standards | MT | 316.92 | USD | 20251015 |
| Shandong Yaowang Chem | China national standards | MT | 309.77 | USD | 20251014 |
| Shandong Yaowang Chem | China national standards | MT | 309.83 | USD | 20251013 |
| Shandong Yaowang Chem | China national standards | MT | 309.65 | USD | 20251012 |
| Shandong Yaowang Chem | China national standards | MT | 302.61 | USD | 20251011 |