| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1453.65 | USD | 20251028 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1453.14 | USD | 20251027 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1452.18 | USD | 20251025 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1452.18 | USD | 20251024 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1452.38 | USD | 20251023 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.64 | USD | 20251022 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1452.14 | USD | 20251021 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.26 | USD | 20251020 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.26 | USD | 20251020 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1451.75 | USD | 20251018 |