| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 784.2 | USD | 20251209 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 1342.32 | USD | 20251209 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 1342.32 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 953.87 | USD | 20251208 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 798.43 | USD | 20251208 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1017.47 | USD | 20251208 |