| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1044.0 | USD | 20251027 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1043.46 | USD | 20251023 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1029.36 | USD | 20251023 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1042.93 | USD | 20251022 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1042.65 | USD | 20251020 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1028.56 | USD | 20251020 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1043.0 | USD | 20251017 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1042.72 | USD | 20251016 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1041.95 | USD | 20251014 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1042.15 | USD | 20251013 |