| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 781.09 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 900.71 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 795.16 | USD | 20250930 |
| Shandong Fushengyong Trading Co., Ltd. | Industrial Grade | MT | 900.71 | USD | 20250930 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1013.3 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 949.97 | USD | 20250930 |