| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.53 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1121.23 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1121.23 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1009.11 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1037.14 | USD | 20250813 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 953.05 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1191.31 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1191.31 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.29 | USD | 20250813 |