| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.64 | USD | 20251122 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.69 | USD | 20251119 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.69 | USD | 20251119 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.69 | USD | 20251119 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251118 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251118 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251118 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.57 | USD | 20251117 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.57 | USD | 20251117 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.57 | USD | 20251117 |