| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1087.66 | USD | 20251202 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1554.57 | USD | 20251201 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1088.2 | 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 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1201.26 | USD | 20251201 |
| Shandong Tongzhou Chemical Co., Ltd. | China national standards | MT | 1413.25 | USD | 20251201 |