| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 938.8 | USD | 20251012 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 938.8 | USD | 20251011 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 943.02 | USD | 20251011 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 943.02 | USD | 20251011 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 933.17 | USD | 20251011 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251011 |