| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.41 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.41 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.61 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.41 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.31 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.18 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |