| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.64 | USD | 20251122 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1114.64 | USD | 20251122 |