| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.71 | USD | 20251112 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.18 | USD | 20251112 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.12 | USD | 20251112 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.12 | USD | 20251112 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.3 | USD | 20251112 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1270.0 | USD | 20251111 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1100.67 | USD | 20251111 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1016.0 | USD | 20251111 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1072.45 | USD | 20251111 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1100.67 | USD | 20251111 |