| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.47 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.67 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.52 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.42 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.52 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.47 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.52 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.37 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |