| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 801.86 | USD | 20250918 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 893.3 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.94 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.54 | USD | 20250916 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.99 | USD | 20250916 |