| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.67 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.71 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.67 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.81 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.71 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.71 | USD | 20250929 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 337.6 | USD | 20250929 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 295.4 | USD | 20250929 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 309.2 | USD | 20250928 |
| Jiangsu Lee & Man Chemical Limited | China national standards | MT | 281.09 | USD | 20250928 |