| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 423.1 | USD | 20251120 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.89 | USD | 20251120 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.69 | USD | 20251120 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.58 | USD | 20251120 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 394.89 | USD | 20251120 |
| China national standards | MT | 394.89 | USD | 20251120 | |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 380.79 | USD | 20251120 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 344.12 | USD | 20251120 |