| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 788.16 | USD | 20250904 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 745.93 | USD | 20250904 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 745.93 | USD | 20250904 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 787.74 | USD | 20250902 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 773.68 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.68 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.61 | USD | 20250902 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |