| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.79 | USD | 20251117 |
| China national standards | MT | 324.79 | USD | 20251117 | |
| China national standards | MT | 296.54 | USD | 20251117 | |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 398.22 | USD | 20251117 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.6 | USD | 20251117 |
| China national standards | MT | 310.66 | USD | 20251117 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.43 | USD | 20251117 |
| China national standards | MT | 389.74 | USD | 20251117 | |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |