| Vendor | Spec | Unit | Price | Currency | Date |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 846.66 | USD | 20251103 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 846.66 | USD | 20251103 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.77 | USD | 20251103 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 733.77 | USD | 20251103 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1093.6 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.38 | USD | 20251103 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251102 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 729.4 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251102 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.56 | USD | 20251102 |