| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.22 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.06 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.93 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250919 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.93 | USD | 20250919 |