| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250919 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 598.92 | USD | 20250919 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 527.22 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 492.07 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 576.43 | USD | 20250919 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250919 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 520.19 | 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 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250919 |