| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.05 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.66 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.77 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.87 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.75 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.16 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.93 | USD | 20251107 |