| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1074.07 | USD | 20251201 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 787.18 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.95 | USD | 20251201 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.82 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.89 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1102.33 | USD | 20251201 |