| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1364.56 | USD | 20250918 |
| SINOPEC Maoming Petrochemical Co., Ltd. | China national standards | MT | 1223.89 | USD | 20250918 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1153.55 | USD | 20250918 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| SINOPEC Maoming Petrochemical Co., Ltd. | China national standards | MT | 1125.41 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250918 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250918 |