| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 395.74 | USD | 20251203 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 381.6 | USD | 20251203 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251203 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.6 | USD | 20251203 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.6 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 325.07 | USD | 20251203 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251203 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251203 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.7 | USD | 20251202 |