| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.81 | USD | 20251125 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1029.98 | USD | 20251122 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.09 | USD | 20251122 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.09 | USD | 20251121 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.14 | USD | 20251119 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.37 | USD | 20251118 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1030.71 | USD | 20251115 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.83 | USD | 20251115 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1030.71 | USD | 20251114 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.83 | USD | 20251114 |