| Vendor | Spec | Unit | Price | Currency | Date |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 674.84 | USD | 20250919 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 633.04 | USD | 20250918 |
| BASF-YPC. Co., Ltd. | China national standards | MT | 626.01 | USD | 20250918 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 604.91 | USD | 20250918 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 534.57 | USD | 20250918 |
| BASF-YPC. Co., Ltd. | China national standards | MT | 534.57 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |