| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 975.21 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.61 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.41 | USD | 20251203 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 975.21 | USD | 20251203 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| China national standards | MT | 1031.74 | USD | 20251203 | |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1201.35 | USD | 20251203 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1272.01 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.41 | USD | 20251203 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |