| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.93 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.3 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.07 | USD | 20250916 |