| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.23 | USD | 20251122 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 719.58 | USD | 20251122 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 747.8 | USD | 20251121 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 761.9 | USD | 20251121 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 719.58 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.23 | USD | 20251121 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 776.01 | USD | 20251121 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 719.58 | USD | 20251121 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 747.8 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.23 | USD | 20251121 |