| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 533.8 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1025.45 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.68 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.68 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.68 | USD | 20250825 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.68 | USD | 20250825 |