| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.15 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1190.18 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.16 | USD | 20250812 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1120.17 | USD | 20250812 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.14 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.15 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.18 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1190.39 | USD | 20250811 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.31 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.32 | USD | 20250811 |