| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.36 | USD | 20250913 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 901.31 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.31 | USD | 20250909 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 873.14 | USD | 20250909 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 915.39 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.48 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 901.04 | USD | 20250908 |