| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 492.07 | USD | 20250919 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250919 |
| CNOOC and Shell Petrochemicals Company Limited | China national standards | MT | 576.43 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 576.43 | USD | 20250919 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250919 |
| CNOOC and Shell Petrochemicals Company Limited | China national standards | MT | 576.43 | USD | 20250919 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250919 |
| Weifang Mingbo Chemical Co., Ltd. | China national standards | MT | 534.25 | USD | 20250919 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 506.13 | USD | 20250919 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 618.6 | USD | 20250919 |