| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 844.5 | USD | 20251010 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251010 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251010 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1280.82 | USD | 20251010 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1069.7 | USD | 20251010 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251010 |