| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.8 | USD | 20251113 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.8 | USD | 20251113 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.8 | USD | 20251113 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.3 | USD | 20251112 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.3 | USD | 20251112 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.3 | USD | 20251112 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1129.37 | USD | 20251108 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1129.37 | USD | 20251108 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1129.37 | USD | 20251108 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1128.91 | USD | 20251106 |