| Vendor | Spec | Unit | Price | Currency | Date |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.71 | USD | 20251014 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.72 | USD | 20251013 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.67 | USD | 20251011 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.67 | USD | 20251010 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.61 | USD | 20251009 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.66 | USD | 20250930 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.62 | USD | 20250929 |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 88.54 | USD | 20250928 |