| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.08 | USD | 20251210 |
| Shandong River Chemical Co., Ltd. | China national standards | MT | 727.88 | USD | 20251210 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 742.02 | USD | 20251210 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 869.22 | USD | 20251210 |
| Liaocheng Jinxinda New Material Co., Ltd. | China national standards | MT | 784.42 | USD | 20251210 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 848.02 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.22 | USD | 20251210 |