| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.92 | USD | 20251018 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 732.92 | USD | 20251018 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 782.25 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 676.54 | USD | 20251018 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 810.44 | USD | 20251018 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 662.45 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 810.44 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 747.02 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |