| Vendor | Spec | Unit | Price | Currency | Date | 
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251004 | 
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251003 | 
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251003 | 
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251002 | 
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251002 | 
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251001 | 
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251001 | 
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.74 | USD | 20250930 | 
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 | 
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |