| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1241.81 | USD | 20250922 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1153.21 | USD | 20250922 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1265.72 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250920 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1265.32 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1152.85 | USD | 20250920 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1241.42 | USD | 20250920 |