| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.73 | USD | 20251016 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.68 | USD | 20251015 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.64 | USD | 20251014 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.66 | USD | 20251013 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.6 | USD | 20251011 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.51 | USD | 20250922 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 112.54 | USD | 20250918 |