| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.84 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.57 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1063.1 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.76 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.76 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.76 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.76 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 830.59 | USD | 20250911 |