| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.34 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.67 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.39 | USD | 20251111 |
| 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 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.89 | USD | 20251111 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 973.67 | USD | 20251111 |