| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.52 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1139.96 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 879.6 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.64 | USD | 20250930 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.12 | USD | 20250930 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1125.89 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1139.42 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.02 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.74 | USD | 20250929 |