| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.75 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.75 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.36 | USD | 20251016 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1450.81 | USD | 20251015 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1450.28 | USD | 20251014 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1450.56 | USD | 20251013 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1449.72 | USD | 20251011 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1448.62 | USD | 20251009 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1449.58 | USD | 20251008 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1449.58 | USD | 20250930 |