| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 763.11 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.13 | USD | 20250812 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 921.34 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 914.34 | USD | 20250812 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 896.13 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 784.12 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 770.11 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 770.11 | USD | 20250812 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.11 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 770.11 | USD | 20250812 |