| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 887.06 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 929.3 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 943.38 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 922.26 | USD | 20251014 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 823.86 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 760.49 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 760.49 | USD | 20251013 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.31 | USD | 20251013 |
| Shandong River Chemical Co., Ltd. | China national standards | MT | 816.82 | USD | 20251013 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1084.4 | USD | 20251013 |