| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.39 | USD | 20251015 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.35 | USD | 20251015 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.14 | USD | 20251015 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.22 | USD | 20251015 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.22 | USD | 20251015 | 
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 373.27 | USD | 20251015 | 
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.25 | USD | 20251014 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.01 | USD | 20251014 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.09 | USD | 20251014 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.21 | USD | 20251014 |