| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Sinopec | China national standards | MT | USD | 20251210 | |
| Huai'an Fuqiang | China national standards | MT | USD | 20251210 | |
| Dongying Jinmao Alum | China national standards | MT | USD | 20251210 | |
| Shandong Jinling | China national standards | MT | USD | 20251210 | |
| Shandong Zhenkun | China national standards | MT | USD | 20251210 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251210 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251210 | |
| Shandong Yeyang Chem | China national standards | MT | USD | 20251210 | |
| Aite Zhejiang | China national standards | MT | USD | 20251210 | |
| Shandong Junfeng | China national standards | MT | USD | 20251210 |
