| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 908.8 | USD | 20251210 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 908.8 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 908.8 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1173.1 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.96 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.96 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1173.1 | USD | 20251210 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 918.69 | USD | 20251210 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1060.03 | USD | 20251210 |