| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 961.09 | USD | 20251210 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 932.82 | USD | 20251210 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1031.76 | USD | 20251210 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1272.03 | USD | 20251210 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 989.36 | USD | 20251210 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 1081.23 | USD | 20251210 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1017.34 | USD | 20251209 |