| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.49 | USD | 20251127 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1271.56 | USD | 20251127 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 960.74 | USD | 20251127 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.05 | USD | 20251127 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1130.28 | USD | 20251127 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1172.66 | USD | 20251127 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1257.44 | USD | 20251127 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1059.64 | USD | 20251127 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.83 | USD | 20251127 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1144.41 | USD | 20251127 |