| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.74 | USD | 20250515 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.75 | USD | 20250515 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.77 | USD | 20250514 |
| 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 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.69 | USD | 20250513 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 141.54 | USD | 20250512 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.51 | USD | 20250512 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | 37% | MT | 166.45 | USD | 20250511 |