| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.91 | USD | 20250714 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1245.19 | USD | 20250712 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1245.19 | USD | 20250711 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.58 | USD | 20250710 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.04 | USD | 20250709 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.16 | USD | 20250708 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.65 | USD | 20250707 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.15 | USD | 20250705 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.15 | USD | 20250704 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.35 | USD | 20250703 |