| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 966.14 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.15 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.15 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.15 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 952.14 | USD | 20250812 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1176.39 | USD | 20250811 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1176.39 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.32 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 966.32 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.32 | USD | 20250811 |