| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 337.62 | USD | 20250918 |
| Jinan Jinrihe Chemical Co., Ltd. | 90% | MT | 365.76 | USD | 20250918 |