| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1213.3 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1178.03 | USD | 20251027 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1199.19 | USD | 20251027 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1170.98 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.38 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.91 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.6 | USD | 20251027 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1241.52 | USD | 20251027 |