| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.27 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.96 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.36 | USD | 20250914 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.36 | USD | 20250913 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.25 | USD | 20250908 |