| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.22 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1294.74 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1329.92 | USD | 20250924 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.7 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.19 | USD | 20250924 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1168.08 | USD | 20250924 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250924 |
| China National Petroleum Corporation Jinzhou Petrochemical Branch | China national standards | MT | 1210.3 | USD | 20250924 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.12 | USD | 20250923 |