| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1168.9 | USD | 20251013 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1239.31 | USD | 20251013 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1185.8 | USD | 20251013 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1119.61 | USD | 20251013 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1178.08 | USD | 20251012 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251012 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1055.62 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251012 |