| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.24 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.25 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.46 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.45 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.43 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.1 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.1 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.11 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.11 | USD | 20250806 |