| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.93 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 906.82 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.36 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.53 | USD | 20250918 |