| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.02 | USD | 20251119 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.28 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.19 | USD | 20251118 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.18 | USD | 20251118 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1129.69 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.89 | USD | 20251117 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.9 | USD | 20251117 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1157.93 | USD | 20251117 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1129.69 | USD | 20251117 |