| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1554.57 | USD | 20251201 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1201.26 | USD | 20251201 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Hengrui Chemical Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1200.75 | USD | 20251130 |
| Shanghai Juexin Industrial Development Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251129 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1087.74 | USD | 20251129 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1200.75 | USD | 20251129 |
| Shanghai Sinopec Mitsui Chemicals, Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251129 |