| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1115.41 | USD | 20251125 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.86 | USD | 20251125 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 974.22 | USD | 20251125 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Sinopec Shanghai Gaoqiao Petrochemical Company | China national standards | MT | 995.4 | USD | 20251125 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 917.74 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.29 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |