| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.54 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.63 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 393.66 | USD | 20250919 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.54 | USD | 20250919 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 393.89 | USD | 20250918 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.03 | USD | 20250918 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 323.56 | USD | 20250918 |