| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 714.45 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.94 | USD | 20251203 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.94 | USD | 20251203 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 749.07 | USD | 20251203 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 848.01 | USD | 20251203 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 749.07 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.61 | USD | 20251203 |