| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.56 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1190.78 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1169.76 | USD | 20250808 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1204.79 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1190.78 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.66 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.51 | USD | 20250808 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.62 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.64 | USD | 20250808 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1120.73 | USD | 20250808 |