| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.56 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 931.91 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.87 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.91 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 840.82 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.26 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.4 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.39 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.34 | USD | 20250818 |