| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.86 | USD | 20251011 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 938.8 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 938.8 | USD | 20251011 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 938.8 | USD | 20251011 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.34 | USD | 20251011 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1154.15 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251011 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 938.8 | USD | 20251011 |