| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.94 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.81 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.7 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.97 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.03 | USD | 20251027 |
| China national standards | MT | 369.63 | USD | 20251027 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.63 | USD | 20251027 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.81 | USD | 20251027 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.7 | USD | 20251027 |
| China national standards | MT | 423.24 | USD | 20251027 |