| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1093.65 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1037.56 | USD | 20250823 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 981.48 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1016.53 | USD | 20250823 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1016.53 | USD | 20250822 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1023.54 | USD | 20250822 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1065.6 | USD | 20250822 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1051.58 | USD | 20250822 |