| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1094.25 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.01 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.23 | USD | 20251114 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1115.43 | USD | 20251114 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1877.87 | USD | 20251114 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 847.16 | USD | 20251114 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.16 | USD | 20251114 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 974.23 | USD | 20251114 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1129.54 | USD | 20251114 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1073.07 | USD | 20251114 |