| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1100.53 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 973.54 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.23 | USD | 20251121 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.54 | USD | 20251121 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1100.53 | USD | 20251121 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |