| Vendor | Spec | Unit | Price | Currency | Date |
| 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. | Industrial Grade | MT | 904.35 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.34 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.72 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 903.73 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 931.75 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.76 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 840.68 | USD | 20250815 |