| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 908.78 | USD | 20251203 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1060.01 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 840.94 | USD | 20251203 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 890.41 | USD | 20251203 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 1272.01 | USD | 20251203 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 862.14 | USD | 20251203 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 908.78 | USD | 20251203 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1109.48 | USD | 20251203 |