| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.54 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1063.28 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.74 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1252.67 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.66 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.66 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 970.44 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1061.85 | USD | 20251009 |