| Vendor | Spec | Unit | Price | Currency | Date |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 848.26 | USD | 20251204 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1095.67 | USD | 20251204 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 735.16 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 728.09 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1067.39 | USD | 20251204 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 805.85 | USD | 20251204 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1286.53 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |