| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1046.88 | USD | 20251211 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1032.74 | USD | 20251211 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1045.89 | USD | 20251210 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1045.88 | USD | 20251203 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1045.36 | USD | 20251128 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251128 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1045.51 | USD | 20251127 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1031.13 | USD | 20251126 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1045.26 | USD | 20251126 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1030.69 | USD | 20251125 |