| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251010 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 985.25 | USD | 20251010 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 999.32 | USD | 20251010 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 950.06 | USD | 20251010 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 957.1 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251010 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |