| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.13 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.46 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.25 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 944.98 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 937.93 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 909.72 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.67 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.87 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.19 | USD | 20251104 |