| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.51 | USD | 20251129 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 819.34 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.73 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.55 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1257.26 | USD | 20251128 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 847.59 | USD | 20251128 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.59 | USD | 20251128 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1878.82 | USD | 20251128 |