| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.72 | USD | 20251010 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.72 | USD | 20251010 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 957.1 | USD | 20251010 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1337.12 | USD | 20251010 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1407.5 | USD | 20251010 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251010 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251010 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 886.72 | USD | 20251010 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251010 |