| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.6 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.03 | USD | 20251106 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.02 | USD | 20251106 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.91 | USD | 20251106 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.91 | USD | 20251106 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.13 | USD | 20251106 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1156.54 | USD | 20251105 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.33 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.4 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.38 | USD | 20251105 |