| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.98 | USD | 20251205 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.98 | USD | 20251205 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 523.09 | USD | 20251204 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 523.09 | USD | 20251204 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.94 | USD | 20251203 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.94 | USD | 20251203 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.64 | USD | 20251202 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.64 | USD | 20251202 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.9 | USD | 20251201 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.9 | USD | 20251201 |