| Vendor | Spec | Unit | Price | Currency | Date |
| Satellite Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.32 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1026.32 | USD | 20250920 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 871.67 | USD | 20250920 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 815.43 | USD | 20250920 |
| Zhenghe Group Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.31 | USD | 20250920 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 815.43 | USD | 20250920 |