| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 840.52 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.59 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 903.56 | USD | 20250820 |
| 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. | Industrial Grade | MT | 903.88 | USD | 20250819 |
| 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 |