| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Qingdao Shengze Chem | China national standards | MT | USD | 20251118 | |
| Liaocheng Yuanze Chem | China national standards | MT | USD | 20251118 | |
| Shaanxi Petro Yanan | China national standards | MT | USD | 20251118 | |
| Shandong Mingyu | China national standards | MT | USD | 20251118 | |
| CNPC | China national standards | MT | USD | 20251118 | |
| Nantong Zhonghe Chem | China national standards | MT | USD | 20251118 | |
| Suzhou Zixu Mat | China national standards | MT | USD | 20251118 | |
| Shandong Yuxuan Chem | China national standards | MT | USD | 20251118 | |
| Jinan Zhongyin Mat | China national standards | MT | USD | 20251118 | |
| Aite Zhejiang | China national standards | MT | USD | 20251118 |
