| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.01 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.48 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.31 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.45 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 906.51 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.62 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.48 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.27 | USD | 20250928 |