| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.54 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.76 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.65 | USD | 20251027 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 303.33 | USD | 20251027 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 458.51 | USD | 20251027 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 338.6 | USD | 20251027 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 451.46 | USD | 20251027 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 239.84 | USD | 20251027 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 235.61 | USD | 20251027 |
| Jiangsu Lee & Man Chemical Limited | China national standards | MT | 239.84 | USD | 20251027 |