| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1115.3 | USD | 20251112 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.78 | USD | 20251111 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251110 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.23 | USD | 20251105 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.76 | USD | 20251103 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.56 | USD | 20251101 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251028 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1114.54 | USD | 20251027 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251024 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1113.96 | USD | 20251023 |