| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1153.21 | USD | 20250922 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 914.13 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1096.95 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250921 |
| Jinan Xingdate Biotechnology Co., Ltd. | China national standards | MT | 984.14 | USD | 20250921 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250921 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1237.21 | USD | 20250920 |