| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.18 | USD | 20251016 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.73 | USD | 20251016 |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 394.54 | USD | 20251016 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 373.41 | USD | 20251016 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 415.68 | USD | 20251016 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.95 | USD | 20251016 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.73 | USD | 20251016 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.14 | USD | 20251016 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.59 | USD | 20251016 |
| China national standards | MT | 408.63 | USD | 20251016 |