| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1038.06 | USD | 20250821 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 392.78 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 350.7 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 448.89 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 399.79 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 404.0 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 448.89 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1024.03 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 533.06 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 533.06 | USD | 20250821 |