| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 974.73 | USD | 20251128 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1073.61 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.58 | USD | 20251128 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 840.53 | USD | 20251128 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.58 | USD | 20251128 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.58 | USD | 20251128 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 889.97 | USD | 20251128 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251128 |