| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.66 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.51 | USD | 20250808 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.62 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.64 | USD | 20250808 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1120.73 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 981.15 | USD | 20250807 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.37 | USD | 20250807 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1191.39 | USD | 20250807 |