| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.15 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 717.28 | USD | 20251009 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 745.41 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 717.28 | USD | 20251009 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 787.6 | USD | 20251009 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 773.54 | USD | 20251009 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 787.6 | USD | 20251009 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 773.54 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 864.95 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 850.89 | USD | 20251009 |