| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.28 | USD | 20251122 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.06 | USD | 20251121 |
| China national standards | MT | 423.28 | USD | 20251121 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.73 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.84 | USD | 20251121 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.27 | USD | 20251121 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 380.95 | USD | 20251121 |
| China national standards | MT | 395.06 | USD | 20251121 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.06 | USD | 20251121 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.73 | USD | 20251121 |