| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251026 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251025 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 986.92 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251025 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 919.24 | USD | 20251025 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251025 |