| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 816.57 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.51 | USD | 20250908 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 879.92 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.02 | USD | 20250907 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.17 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.52 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 788.02 | USD | 20250906 |