| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Xin Ocean Chemical Co., Ltd. | China national standards | MT | 323.85 | USD | 20251014 |
| Wuhan Xin Ocean Chemical Co., Ltd. | China national standards | MT | 323.54 | USD | 20250929 |
| Wuhan Xin Ocean Chemical Co., Ltd. | China national standards | MT | 323.68 | USD | 20250923 |