| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1014.04 | USD | 20250803 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250803 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250802 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 951.1 | USD | 20250802 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1174.89 | USD | 20250801 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 951.1 | USD | 20250801 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1188.88 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |