| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 493.18 | USD | 20251016 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 507.27 | USD | 20251016 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 507.08 | USD | 20251015 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.99 | USD | 20251015 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.81 | USD | 20251014 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.89 | USD | 20251014 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.99 | USD | 20251013 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.91 | USD | 20251013 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.62 | USD | 20251012 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.7 | USD | 20251012 |