| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 845.93 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 937.57 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.32 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 944.62 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 909.37 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.45 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 909.5 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 944.75 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 937.7 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.05 | USD | 20251023 |