| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250923 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250923 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |