| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1169.72 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 913.85 | USD | 20250920 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 913.85 | USD | 20250920 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 1279.38 | USD | 20250920 |
| China national standards | MT | 1040.38 | USD | 20250919 | |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 1054.44 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1047.41 | USD | 20250919 |