| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1099.3 | USD | 20251022 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.86 | USD | 20251021 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1099.68 | USD | 20251021 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.52 | USD | 20251017 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1099.09 | USD | 20251016 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.18 | USD | 20251016 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1267.69 | USD | 20251015 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1267.23 | USD | 20251014 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250923 |