| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1407.5 | USD | 20251011 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1407.5 | USD | 20251011 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 844.5 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251011 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1083.77 | USD | 20251011 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251011 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251011 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251011 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 767.09 | USD | 20251011 |