| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.24 | USD | 20250814 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.06 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.14 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.32 | USD | 20250811 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.63 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.13 | USD | 20250807 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.13 | USD | 20250807 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.13 | USD | 20250807 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.26 | USD | 20250806 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.85 | USD | 20250805 |