| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.24 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.24 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.3 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.27 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 401.05 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.8 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 534.74 | USD | 20250828 |