| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 323.36 | USD | 20250920 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 382.41 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.51 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.6 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.51 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.51 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.54 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.39 | USD | 20250919 |