| Vendor | Spec | Unit | Price | Currency | Date |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.68 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1017.34 | USD | 20251209 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 876.04 | USD | 20251209 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 805.39 | USD | 20251209 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.89 | USD | 20251208 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Zhenghe Group Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |