| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.49 | USD | 20250630 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 167.53 | USD | 20250629 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.4 | USD | 20250628 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.4 | USD | 20250627 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.42 | USD | 20250626 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 167.55 | USD | 20250626 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.32 | USD | 20250625 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.35 | USD | 20250624 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 167.47 | USD | 20250624 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.24 | USD | 20250623 |