| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 494.82 | USD | 20251204 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 494.67 | USD | 20251203 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251203 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 508.52 | USD | 20251202 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 494.39 | USD | 20251202 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 508.77 | USD | 20251201 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 494.64 | USD | 20251201 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 508.55 | USD | 20251128 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 494.43 | USD | 20251128 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 508.5 | USD | 20251126 |