| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 815.43 | USD | 20250919 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250919 |
| Shandong Kaitai Petrochemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250919 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.6 | USD | 20250918 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 801.86 | USD | 20250918 |