| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.75 | USD | 20250514 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.68 | USD | 20250513 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.68 | USD | 20250513 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.54 | USD | 20250512 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.48 | USD | 20250510 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.48 | USD | 20250509 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.52 | USD | 20250508 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.66 | USD | 20250507 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.65 | USD | 20250506 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.64 | USD | 20250430 |