| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 973.59 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1093.77 | USD | 20251118 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 931.47 | 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 Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 733.88 | USD | 20251118 |