| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1942.16 | USD | 20250930 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1942.1 | USD | 20250925 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1632.49 | USD | 20250925 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1632.49 | USD | 20250924 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1942.1 | USD | 20250924 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1632.49 | USD | 20250923 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1942.1 | USD | 20250923 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1940.76 | USD | 20250922 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1631.37 | USD | 20250922 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1630.86 | USD | 20250920 |