| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke | Food Grade | MT | 331.62 | USD | 20251030 |
| Shanghai Guoke | Food Grade | MT | 331.72 | USD | 20251029 |
| Shanghai Guoke | Industrial Grade | MT | 307.72 | USD | 20251029 |
| Shanghai Guoke | Industrial Grade | MT | 307.67 | USD | 20251028 |
| Shanghai Guoke | Food Grade | MT | 331.66 | USD | 20251028 |
| Shanghai Guoke | Food Grade | MT | 331.54 | USD | 20251027 |
| Shanghai Guoke | Industrial Grade | MT | 307.56 | USD | 20251027 |
| Shanghai Guoke | China national standards | MT | 307.35 | USD | 20251024 |
| Shanghai Guoke | China national standards | MT | 331.32 | USD | 20251024 |
| Shanghai Guoke | Industrial Grade | MT | 307.4 | USD | 20251023 |