| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.5 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.31 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.05 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.31 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.31 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.35 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.09 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.29 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.35 | USD | 20251208 |