| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.11 | USD | 20250828 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.11 | USD | 20250828 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 998.48 | USD | 20250827 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 997.36 | USD | 20250826 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 997.74 | USD | 20250825 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250823 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250822 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.97 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.62 | USD | 20250820 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.97 | USD | 20250819 |