| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.89 | USD | 20250605 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.93 | USD | 20250605 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.93 | USD | 20250604 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.89 | USD | 20250604 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.92 | USD | 20250603 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.97 | USD | 20250603 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 167.02 | USD | 20250531 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 167.02 | USD | 20250530 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.97 | USD | 20250530 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.88 | USD | 20250529 |