| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 727.82 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 763.15 | USD | 20251201 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 855.01 | USD | 20251201 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 741.96 | USD | 20251201 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 741.96 | USD | 20251201 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 706.62 | USD | 20251201 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 706.62 | USD | 20251201 |