| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Kunfeng Chem | Food Grade | MT | 332.24 | USD | 20251204 |
| Jinan Kunfeng Chem | China national standards | MT | 332.14 | USD | 20251203 |
| Jinan Kunfeng Chem | China national standards | MT | 268.54 | USD | 20251203 |
| Jinan Kunfeng Chem | Food Grade | MT | 317.82 | USD | 20251202 |
| Jinan Kunfeng Chem | Food Grade | MT | 268.38 | USD | 20251202 |
| Jinan Kunfeng Chem | Food Grade | MT | 268.52 | USD | 20251201 |
| Jinan Kunfeng Chem | Food Grade | MT | 332.11 | USD | 20251201 |
| Jinan Kunfeng Chem | Food Grade | MT | 331.97 | USD | 20251128 |
| Jinan Kunfeng Chem | Food Grade | MT | 317.85 | USD | 20251128 |
| Jinan Kunfeng Chem | Food Grade | MT | 268.4 | USD | 20251128 |