| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Chuangtong Chemical Co., Ltd. | 37% | MT | 147.83 | USD | 20250908 |
| Jinan Chuangtong Chemical Co., Ltd. | 37% | MT | 146.35 | USD | 20250828 |
| Jinan Chuangtong Chemical Co., Ltd. | 37% | MT | 145.69 | USD | 20250809 |
| Jinan Chuangtong Chemical Co., Ltd. | 37% | MT | 145.64 | USD | 20250806 |
| Jinan Chuangtong Chemical Co., Ltd. | 37% | MT | 144.33 | USD | 20250805 |