| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.62 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 906.51 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.48 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.72 | USD | 20250925 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.87 | USD | 20250925 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250925 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.39 | USD | 20250925 |