| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.67 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.81 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.67 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.74 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.57 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.64 | USD | 20250902 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.72 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.9 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.76 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.79 | USD | 20250901 |