| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1143.16 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1171.39 | USD | 20251118 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1241.96 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.99 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1270.18 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.33 | USD | 20251118 |