| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.61 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.06 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.61 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.06 | USD | 20251009 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 337.54 | USD | 20251009 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |