| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 636.02 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 602.09 | USD | 20251210 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.42 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 494.68 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| BASF-YPC. Co., Ltd. | China national standards | MT | 678.42 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 491.85 | USD | 20251210 |
| Liaocheng Jinxinda New Material Co., Ltd. | China national standards | MT | 530.01 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 628.95 | USD | 20251210 |