| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 744.51 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 786.65 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 842.84 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 814.74 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 814.74 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.05 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.05 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.05 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.05 | USD | 20250825 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 646.42 | USD | 20250825 |