| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.23 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.18 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.14 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.18 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.22 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.01 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.31 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.18 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.14 | USD | 20251015 |