| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.47 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.49 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.5 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.43 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.42 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.4 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 364.05 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.06 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 392.06 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 385.13 | USD | 20250811 |