| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1181.28 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1145.91 | USD | 20251211 |
| Hangjin Technology Co., Ltd. | China national standards | MT | 1089.32 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1145.91 | USD | 20251211 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1117.62 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1216.65 | USD | 20251211 |
| Befar Group Co., Ltd. | China national standards | MT | 891.27 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1216.65 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1244.94 | USD | 20251211 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 962.0 | USD | 20251211 |