| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.33 | USD | 20251101 |
| China national standards | MT | 318.85 | USD | 20251101 | |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.09 | USD | 20251101 |
| China national standards | MT | 296.28 | USD | 20251101 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.14 | USD | 20251101 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.71 | USD | 20251031 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.55 | USD | 20251031 |
| China national standards | MT | 409.14 | USD | 20251031 | |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 416.2 | USD | 20251031 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.2 | USD | 20251031 |