| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 748.09 | USD | 20251124 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 698.69 | USD | 20251124 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 684.3 | USD | 20251123 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 684.3 | USD | 20251123 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 705.47 | USD | 20251123 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 698.41 | USD | 20251123 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 684.3 | USD | 20251123 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 719.58 | USD | 20251122 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 705.47 | USD | 20251122 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.8 | USD | 20251122 |