| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.48 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.87 | USD | 20251127 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.48 | USD | 20251127 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 805.32 | USD | 20251127 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.5 | USD | 20251126 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.5 | USD | 20251126 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1101.76 | USD | 20251126 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 805.13 | USD | 20251126 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1073.51 | USD | 20251126 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |