| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1139.48 | USD | 20250918 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 879.23 | USD | 20250918 |
| 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 |