| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 904.1 | USD | 20251129 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251129 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 988.85 | USD | 20251129 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 967.66 | USD | 20251129 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 904.1 | USD | 20251129 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 868.78 | USD | 20251129 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 791.08 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 875.84 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.83 | USD | 20251129 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 762.83 | USD | 20251128 |