| Vendor | Spec | Unit | Price | Currency | Date | 
| Jiangsu Huachang Chemical Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 | 
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 | 
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 | 
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.49 | USD | 20250922 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 | 
| Shandong Energy Group Co., Ltd. | China national standards | MT | 773.49 | USD | 20250922 | 
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 | 
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 886.0 | USD | 20250922 | 
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 829.75 | USD | 20250922 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |