| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 848.26 | USD | 20251204 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 848.26 | USD | 20251204 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1116.88 | USD | 20251204 |
| Hebei Risun Energy Limited | China national standards | MT | 961.36 | USD | 20251204 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.81 | USD | 20251204 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1032.05 | USD | 20251204 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 848.26 | USD | 20251204 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 848.26 | USD | 20251204 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 961.36 | USD | 20251204 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1032.05 | USD | 20251204 |