| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1169.72 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250920 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 956.02 | USD | 20250920 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 956.02 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 984.14 | USD | 20250920 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1026.32 | USD | 20250920 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1195.03 | USD | 20250920 |
| Befar Group Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |