| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 714.5 | USD | 20251207 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 714.5 | USD | 20251207 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.66 | USD | 20251207 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.66 | USD | 20251207 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 714.5 | USD | 20251207 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 713.79 | USD | 20251207 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251207 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.67 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.67 | USD | 20251206 |