| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 917.11 | USD | 20251121 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.44 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1199.29 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251121 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 924.16 | USD | 20251121 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 903.0 | USD | 20251121 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1086.42 | USD | 20251121 |