| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.33 | USD | 20251020 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.33 | USD | 20251020 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251019 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251019 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251018 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251018 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251017 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.5 | USD | 20251017 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.36 | USD | 20251016 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 521.36 | USD | 20251016 |