| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.14 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.36 | USD | 20251117 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.27 | USD | 20251117 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1878.11 | USD | 20251117 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 931.99 | USD | 20251117 |