| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.71 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 904.22 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 946.61 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.51 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 904.01 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 946.38 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.32 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 911.07 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.92 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.98 | USD | 20251125 |