| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.16 | USD | 20250704 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.17 | USD | 20250704 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.25 | USD | 20250703 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.26 | USD | 20250703 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.08 | USD | 20250702 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.07 | USD | 20250702 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.16 | USD | 20250701 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.17 | USD | 20250701 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 558.77 | USD | 20250630 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 565.75 | USD | 20250630 |