| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.26 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 534.74 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.26 | USD | 20250828 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.38 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.33 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.02 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.33 | USD | 20250828 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.02 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250828 |