| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.16 | USD | 20251015 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.16 | USD | 20251015 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.97 | USD | 20251014 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.97 | USD | 20251014 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.08 | USD | 20251013 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.08 | USD | 20251013 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251012 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251012 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251011 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251011 |