| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.74 | USD | 20251115 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1129.54 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.73 | USD | 20251114 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.78 | USD | 20251114 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.74 | USD | 20251114 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1129.54 | USD | 20251114 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1129.54 | USD | 20251114 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.02 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.03 | USD | 20251113 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.91 | USD | 20251113 |