| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1008.63 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.66 | USD | 20250820 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.68 | USD | 20250820 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.68 | USD | 20250820 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.68 | USD | 20250820 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.68 | USD | 20250820 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.68 | USD | 20250820 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1086.06 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1058.03 | USD | 20250819 |