| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.92 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.92 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.94 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.94 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.44 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.78 | USD | 20250817 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.78 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.78 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.78 | USD | 20250815 |