| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1182.3 | USD | 20251011 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 924.73 | USD | 20251011 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 935.99 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 938.8 | USD | 20251011 |