| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251024 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 986.92 | USD | 20251024 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 993.97 | USD | 20251024 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251024 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251024 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 888.22 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251024 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.24 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |