| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.79 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.23 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.07 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.04 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.2 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 906.05 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.15 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.03 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.17 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 842.84 | USD | 20250826 |