| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.37 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.46 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.22 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.32 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.14 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.27 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.45 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.27 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |