| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.94 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.54 | USD | 20250916 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 886.99 | USD | 20250916 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 879.95 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1139.95 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.51 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.14 | USD | 20250915 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 816.26 | USD | 20250915 |