| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.97 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.41 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251210 |