| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1412.51 | USD | 20251126 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1412.51 | USD | 20251126 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.91 | USD | 20251125 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.91 | USD | 20251125 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.49 | USD | 20251124 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.49 | USD | 20251124 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.93 | USD | 20251121 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.93 | USD | 20251121 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1412.11 | USD | 20251117 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1412.11 | USD | 20251117 |