| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.09 | USD | 20251103 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.09 | USD | 20251103 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.84 | USD | 20251101 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.84 | USD | 20251101 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.31 | USD | 20251028 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.31 | USD | 20251028 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.82 | USD | 20251027 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1410.82 | USD | 20251027 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.88 | USD | 20251024 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.88 | USD | 20251024 |