| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1180.04 | USD | 20251021 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 |
| Befar Group Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.66 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1198.36 | USD | 20251021 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1029.18 | USD | 20251021 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |