| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Shandong Chem | Food Grade | MT | 268.11 | USD | 20251111 |
| Baozhen Shandong Chem | Food Grade | MT | 268.15 | USD | 20251110 |
| Baozhen Shandong Chem | Food Grade | MT | 267.98 | USD | 20251105 |
| Baozhen Shandong Chem | Food Grade | MT | 268.11 | USD | 20251103 |
| Baozhen Shandong Chem | Food Grade | MT | 268.06 | USD | 20251101 |
| Baozhen Shandong Chem | Food Grade | MT | 268.15 | USD | 20251028 |
| Baozhen Shandong Chem | Food Grade | MT | 268.05 | USD | 20251027 |
| Baozhen Shandong Chem | China national standards | MT | 267.88 | USD | 20251024 |
| Baozhen Shandong Chem | Food Grade | MT | 267.92 | USD | 20251023 |
| Baozhen Shandong Chem | Food Grade | MT | 267.87 | USD | 20251021 |