| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.39 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.87 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.72 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.72 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.87 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250923 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.39 | USD | 20250923 |