| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.14 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.35 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.39 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.22 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.09 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.21 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.25 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.01 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.33 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.29 | USD | 20251013 |