| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Shandong Hongshuo Chemical Technology Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |