| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 929.64 | USD | 20251015 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 929.3 | USD | 20251014 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 929.49 | USD | 20251013 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.95 | USD | 20251011 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.24 | USD | 20251009 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.86 | USD | 20251008 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |