| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.91 | USD | 20250527 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.0 | USD | 20250526 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.83 | USD | 20250524 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.83 | USD | 20250523 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.86 | USD | 20250522 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.79 | USD | 20250521 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.8 | USD | 20250520 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.83 | USD | 20250519 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.79 | USD | 20250516 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.74 | USD | 20250515 |