| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.28 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.75 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.73 | USD | 20251027 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1268.89 | USD | 20251025 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1244.92 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1268.89 | USD | 20251024 |