| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1096.92 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1251.62 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1279.74 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1103.95 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.67 | USD | 20250827 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1125.05 | USD | 20250827 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1054.73 | USD | 20250827 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1025.45 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1025.45 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1067.6 | USD | 20250826 |