| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.58 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.3 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.24 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.52 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.25 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 909.98 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.19 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.92 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.49 | USD | 20251027 |