| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251018 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.18 | USD | 20251018 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 897.83 | USD | 20251018 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 897.83 | USD | 20251018 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 916.15 | USD | 20251018 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 916.15 | USD | 20251018 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1244.56 | USD | 20251018 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 972.53 | USD | 20251018 |