| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.68 | USD | 20251128 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.68 | USD | 20251128 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.63 | USD | 20251126 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.63 | USD | 20251126 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.41 | USD | 20251125 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.41 | USD | 20251125 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.25 | USD | 20251124 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.25 | USD | 20251124 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.05 | USD | 20251122 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 522.05 | USD | 20251121 |