| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1213.23 | USD | 20251104 |
| Befar Group Co., Ltd. | China national standards | MT | 888.76 | USD | 20251104 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1029.84 | USD | 20251104 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1199.13 | USD | 20251104 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1241.45 | USD | 20251104 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.32 | USD | 20251104 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.84 | USD | 20251104 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.53 | USD | 20251104 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1128.59 | USD | 20251104 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1128.59 | USD | 20251104 |