| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.21 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.23 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.11 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.16 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.24 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.37 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.34 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.34 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.32 | USD | 20250825 |