| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 368.98 | USD | 20251013 |
| China national standards | MT | 368.98 | USD | 20251013 | |
| China national standards | MT | 295.75 | USD | 20251013 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.29 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.08 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.49 | USD | 20251013 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.33 | USD | 20251013 |