| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.82 | USD | 20251013 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 887.24 | USD | 20251013 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 844.99 | USD | 20251013 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 971.74 | USD | 20251013 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 844.99 | USD | 20251013 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1098.48 | USD | 20251013 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1070.32 | USD | 20251013 |