| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1141.97 | USD | 20251021 |
| Hangjin Technology Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.41 | USD | 20251021 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1268.86 | USD | 20251021 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1381.64 | USD | 20251021 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Befar Group Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |