| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 720.86 | USD | 20251205 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 720.86 | USD | 20251205 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 777.4 | USD | 20251205 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 855.14 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 855.14 | USD | 20251205 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |