| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1105.52 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.48 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.89 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251011 |