| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1201.43 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1215.56 | USD | 20251205 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1088.35 | USD | 20251205 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 1257.97 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.12 | USD | 20251205 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1088.35 | USD | 20251205 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1144.89 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.56 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.99 | USD | 20251205 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.35 | USD | 20251205 |