| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Shandong Chem | Food Grade | MT | 267.71 | USD | 20251020 |
| Baozhen Shandong Chem | Food Grade | MT | 267.8 | USD | 20251017 |
| Baozhen Shandong Chem | Food Grade | MT | 267.73 | USD | 20251016 |
| Baozhen Shandong Chem | Food Grade | MT | 267.62 | USD | 20251015 |
| Baozhen Shandong Chem | Food Grade | MT | 267.53 | USD | 20251014 |
| Baozhen Shandong Chem | Food Grade | MT | 267.58 | USD | 20251013 |
| Baozhen Shandong Chem | China national standards | MT | 267.42 | USD | 20251011 |