| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1122.22 | USD | 20250821 |
| Jiangsu Xiaomi Chemical Trading Co., Ltd. | China national standards | MT | 945.59 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 945.59 | USD | 20250820 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 980.61 | USD | 20250820 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1050.66 | USD | 20250820 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 910.57 | USD | 20250820 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 938.59 | USD | 20250820 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 882.55 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 924.58 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 924.58 | USD | 20250820 |