| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke | Food Grade | MT | 331.62 | USD | 20251113 |
| Shanghai Guoke | Food Grade | MT | 331.77 | USD | 20251112 |
| Shanghai Guoke | Industrial Grade | MT | 309.18 | USD | 20251112 |
| Shanghai Guoke | Food Grade | MT | 331.61 | USD | 20251111 |
| Shanghai Guoke | Industrial Grade | MT | 309.03 | USD | 20251111 |
| Shanghai Guoke | Food Grade | MT | 331.66 | USD | 20251110 |
| Shanghai Guoke | Industrial Grade | MT | 309.08 | USD | 20251110 |
| Shanghai Guoke | China national standards | MT | 331.75 | USD | 20251107 |
| Shanghai Guoke | China national standards | MT | 309.16 | USD | 20251107 |
| Shanghai Guoke | Food Grade | MT | 331.62 | USD | 20251106 |