| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.14 | USD | 20251202 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.44 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.11 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.31 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.31 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.25 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.38 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.38 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.38 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.58 | USD | 20251201 |