| 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 | 352.37 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.41 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.27 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.36 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.45 | USD | 20251016 |
| 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 | 345.23 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |