| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1045.6 | USD | 20251209 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1031.6 | USD | 20251208 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 1010.4 | USD | 20251208 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |