| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1089.92 | USD | 20250922 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1096.95 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.78 | USD | 20250922 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.02 | USD | 20250922 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1068.83 | USD | 20250922 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1096.95 | USD | 20250922 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 848.03 | USD | 20250922 |