| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.62 | USD | 20251120 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.66 | USD | 20251119 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.68 | USD | 20251118 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.72 | USD | 20251115 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.72 | USD | 20251114 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 84.67 | USD | 20251113 |