| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.36 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.5 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.54 | USD | 20251016 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.39 | USD | 20251015 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.48 | USD | 20251015 |
| 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 |