| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.51 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.51 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.72 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.47 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.14 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.27 | USD | 20251203 |