| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 323.82 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.53 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.86 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.53 | USD | 20250916 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.22 | USD | 20250916 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.86 | USD | 20250916 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.22 | USD | 20250916 |