| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 409.14 | USD | 20251102 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.33 | USD | 20251102 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 409.14 | USD | 20251102 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.72 | USD | 20251102 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.33 | USD | 20251102 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.14 | USD | 20251102 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.55 | USD | 20251102 |
| China national standards | MT | 369.64 | USD | 20251101 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.64 | USD | 20251101 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.09 | USD | 20251101 |