| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1064.69 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1162.76 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.56 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.77 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.56 | USD | 20250808 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.56 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 917.6 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.91 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.91 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1400.91 | USD | 20250808 |