| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 815.43 | USD | 20250920 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 2151.05 | USD | 20250920 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250920 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250920 |
| Shandong Energy Group Co., Ltd. | China national standards | MT | 773.25 | USD | 20250920 |
| PetroChina Company Limited | China national standards | MT | 899.79 | USD | 20250920 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250920 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 871.67 | USD | 20250920 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2151.05 | USD | 20250920 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 857.61 | USD | 20250920 |