| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1103.95 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1110.99 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1110.99 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1096.92 | USD | 20250827 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 913.08 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1053.55 | USD | 20250826 |
| Jiangsu Xiaomi Chemical Trading Co., Ltd. | China national standards | MT | 965.05 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 955.22 | USD | 20250826 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 941.17 | USD | 20250826 |