| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251018 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 806.21 | USD | 20251018 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1071.19 | USD | 20251018 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251018 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1014.81 | USD | 20251018 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251017 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1113.48 | USD | 20251017 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1071.19 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |