| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 662.45 | USD | 20251018 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 747.02 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 810.44 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 704.73 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 634.26 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.11 | USD | 20251017 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 747.02 | USD | 20251017 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 704.73 | USD | 20251017 |