| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 813.46 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 721.5 | USD | 20251211 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 707.35 | USD | 20251211 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 848.82 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 834.68 | USD | 20251211 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 778.09 | USD | 20251211 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 792.24 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 763.94 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 778.09 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 855.9 | USD | 20251211 |