| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.83 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.83 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.05 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.85 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.97 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.09 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.09 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.09 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.27 | USD | 20251117 |