| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 491.9 | USD | 20250927 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 491.9 | USD | 20250926 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 505.96 | USD | 20250926 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.56 | USD | 20250925 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.56 | USD | 20250923 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.64 | USD | 20250923 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.29 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.29 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 492.22 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 506.13 | USD | 20250919 |