| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.04 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 936.24 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.28 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.73 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.6 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.78 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.81 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.31 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.78 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.6 | USD | 20250905 |