| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251017 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |
| Guangzhou Zhan'en Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |