| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.61 | USD | 20250429 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.58 | USD | 20250428 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.54 | USD | 20250427 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.52 | USD | 20250422 |