| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.67 | USD | 20251101 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1199.21 | USD | 20251031 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.67 | USD | 20251031 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1199.21 | USD | 20251031 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.75 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.77 | USD | 20251031 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.67 | USD | 20251031 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1156.88 | USD | 20251031 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.15 | USD | 20251030 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.04 | USD | 20251030 |