| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.43 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.06 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.06 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 759.43 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 759.43 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |