| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1099.71 | USD | 20251024 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1099.71 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 785.3 | USD | 20251024 |