| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 369.39 | USD | 20251025 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.77 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.72 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.47 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.57 | USD | 20251024 |
| China national standards | MT | 369.39 | USD | 20251024 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.39 | USD | 20251024 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 373.62 | USD | 20251024 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.47 | USD | 20251024 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.47 | USD | 20251024 |