| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 380.17 | USD | 20251014 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 380.02 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 337.8 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 281.5 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 281.46 | USD | 20250923 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 337.76 | USD | 20250923 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 379.98 | USD | 20250923 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 281.35 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 379.83 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 337.62 | USD | 20250918 |