| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 843.79 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1061.77 | USD | 20250827 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1089.89 | USD | 20250827 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1096.92 | USD | 20250827 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1096.92 | USD | 20250827 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 801.6 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 842.84 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1011.41 | USD | 20250826 |