| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 926.02 | USD | 20251204 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1201.7 | USD | 20251204 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 989.64 | USD | 20251204 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1569.28 | USD | 20251204 |
| Jiangsu Yingte Chemical Co., Ltd. | China national standards | MT | 1357.22 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.25 | USD | 20251204 |
| Weifang Yixin Chemical Co., Ltd. | China national standards | MT | 1647.04 | USD | 20251204 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1696.52 | USD | 20251204 |