| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 779.3 | USD | 20250929 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 730.83 | USD | 20250928 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250928 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 772.99 | USD | 20250928 |
| Anhui Ruibai New Material Co., Ltd. | China national standards | MT | 808.13 | USD | 20250928 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 730.83 | USD | 20250928 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 808.13 | USD | 20250928 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 730.83 | USD | 20250928 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 765.97 | USD | 20250928 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 765.97 | USD | 20250928 |