| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.05 | USD | 20250925 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.53 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250925 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.32 | USD | 20250925 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.32 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.32 | USD | 20250925 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250925 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250925 |