| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.83 | USD | 20250523 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.85 | USD | 20250523 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.89 | USD | 20250522 |
| 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 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.86 | USD | 20250519 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.83 | USD | 20250519 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.81 | USD | 20250517 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.79 | USD | 20250516 |