| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.32 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.12 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.12 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.82 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.82 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1177.03 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.82 | USD | 20250805 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1163.02 | USD | 20250805 |