| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.16 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 906.4 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.5 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.37 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.53 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.27 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.35 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 904.36 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.4 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.41 | USD | 20250823 |