| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.54 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1177.76 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.54 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.54 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1163.74 | USD | 20250818 |
| Jiangsu Haixing Chemical Co., Ltd. | China national standards | MT | 1135.69 | USD | 20250818 |
| 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 |