| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.56 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.56 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.56 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.18 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.18 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.18 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.18 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.66 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.66 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 814.74 | USD | 20250826 |