| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251118 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 750.82 | USD | 20251118 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.45 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 973.81 | USD | 20251118 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251118 |