| Vendor | Spec | Unit | Price | Currency | Date | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 985.15 | USD | 20251004 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251003 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251002 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251001 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1055.52 | USD | 20250930 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 999.23 | USD | 20250930 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1013.3 | USD | 20250930 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1168.11 | USD | 20250930 | 
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1168.11 | USD | 20250930 |