| Vendor | Spec | Unit | Price | Currency | Date |
| ShanDong Feiyang Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.37 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 850.84 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 850.84 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 886.0 | USD | 20250922 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |