| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 698.69 | USD | 20251124 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 712.8 | USD | 20251124 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 748.09 | USD | 20251124 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 748.09 | USD | 20251124 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 712.8 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 853.95 | USD | 20251124 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 719.86 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 853.95 | USD | 20251124 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.09 | USD | 20251124 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 748.09 | USD | 20251124 |