| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.32 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 908.36 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 936.53 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.57 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.99 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.5 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.02 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.84 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |