| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.27 | USD | 20250924 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.27 | USD | 20250923 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.27 | USD | 20250923 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 435.83 | USD | 20250919 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 435.83 | USD | 20250919 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |