| Vendor | Spec | Unit | Price | Currency | Date | 
| Tianjin Shengtongtai Chemical Co., Ltd. | China national standards | MT | 351.59 | USD | 20250922 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.75 | USD | 20250922 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.78 | USD | 20250922 | 
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.78 | USD | 20250922 | 
| China national standards | MT | 421.91 | USD | 20250922 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.78 | USD | 20250922 | 
| China national standards | MT | 421.91 | USD | 20250922 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 421.91 | USD | 20250922 | 
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 421.91 | USD | 20250922 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |