| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.06 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.84 | USD | 20251121 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.17 | USD | 20251121 |
| China national standards | MT | 423.28 | USD | 20251121 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.84 | USD | 20251121 |
| China national standards | MT | 395.06 | USD | 20251121 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.73 | USD | 20251121 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.73 | USD | 20251121 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.28 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.69 | USD | 20251120 |