| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.45 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.46 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.11 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.11 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.1 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.1 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.32 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 350.31 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.34 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.34 | USD | 20250805 |