| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.85 | USD | 20251028 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.68 | USD | 20251027 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.36 | USD | 20251025 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.36 | USD | 20251024 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.43 | USD | 20251023 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.18 | USD | 20251022 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.35 | USD | 20251021 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.06 | USD | 20251020 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251018 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251017 |