| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1483.91 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1482.36 | USD | 20251112 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1481.67 | USD | 20251111 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1481.38 | USD | 20251031 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1479.83 | USD | 20251022 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1480.33 | USD | 20251021 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1479.94 | USD | 20251017 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1479.54 | USD | 20251016 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1478.98 | USD | 20251015 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1478.44 | USD | 20251014 |