| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1195.97 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.76 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.34 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.76 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.56 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1196.68 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.01 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.19 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.19 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.79 | USD | 20250828 |