| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.83 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.77 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.66 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.83 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.05 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.76 | USD | 20251027 |