| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.06 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 969.63 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 969.63 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1096.11 | USD | 20250825 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 913.42 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1242.27 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.56 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1093.65 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250823 |