| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.28 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.19 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.06 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.38 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.25 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.19 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.94 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.19 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |