| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Haixing Chemical Co., Ltd. | China national standards | MT | 1135.69 | USD | 20250818 |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1191.78 | USD | 20250818 |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1191.78 | USD | 20250818 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1135.69 | USD | 20250818 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.7 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.13 | USD | 20250817 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.13 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1443.16 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1443.16 | USD | 20250816 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 840.68 | USD | 20250816 |