| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1251.72 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1252.55 | USD | 20251008 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1252.55 | USD | 20251008 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1083.67 | USD | 20251008 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1083.67 | USD | 20251006 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1083.67 | USD | 20251005 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1083.67 | USD | 20251004 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1083.67 | USD | 20251003 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1266.62 | USD | 20251002 |