| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.6 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.54 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.39 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.45 | USD | 20250920 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 351.48 | USD | 20250920 |
| Jiangsu Lee & Man Chemical Limited | China national standards | MT | 390.84 | USD | 20250919 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.88 | USD | 20250919 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 255.88 | USD | 20250919 |