| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 922.6 | USD | 20251015 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 915.56 | USD | 20251015 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 950.77 | USD | 20251015 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 993.03 | USD | 20251015 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.64 | USD | 20251015 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 1267.69 | USD | 20251015 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 922.6 | USD | 20251015 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 922.6 | USD | 20251015 |