| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 971.54 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.43 | USD | 20251014 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1070.11 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1063.28 | USD | 20251013 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1098.48 | USD | 20251013 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1070.32 | USD | 20251013 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1098.48 | USD | 20251013 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.65 | USD | 20251013 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 802.74 | USD | 20251013 |