| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 745.59 | USD | 20250918 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 1055.07 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 801.86 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 956.6 | USD | 20250918 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 822.96 | USD | 20250918 |