| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1215.56 | USD | 20251205 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1173.16 | USD | 20251205 |
| Befar Group Co., Ltd. | China national standards | MT | 890.47 | USD | 20251205 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 961.14 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.12 | USD | 20251205 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1123.69 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1180.23 | USD | 20251205 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1201.43 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1201.43 | USD | 20251205 |