| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.51 | USD | 20250714 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.64 | USD | 20250712 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.64 | USD | 20250711 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.36 | USD | 20250710 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.11 | USD | 20250709 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.12 | USD | 20250709 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.17 | USD | 20250708 | 
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 566.16 | USD | 20250708 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.39 | USD | 20250707 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.17 | USD | 20250705 |