| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Kunfeng Chem | Food Grade | MT | 281.97 | USD | 20251021 |
| Jinan Kunfeng Chem | Food Grade | MT | 281.97 | USD | 20251021 |
| Shandong Kailong Chem | Industrial Grade | MT | 225.57 | USD | 20251021 |
| Shandong Kailong Chem | Industrial Grade | MT | 225.57 | USD | 20251021 |
| Shanghai Guoke | Industrial Grade | MT | 307.35 | USD | 20251021 |
| Shanghai Guoke | Food Grade | MT | 331.31 | USD | 20251021 |
| Shandong Qiangsen Chem | China national standards | MT | 190.33 | USD | 20251021 |
| Chizhou Xinyu Chem | Industrial Grade | MT | 253.77 | USD | 20251021 |
| Zhangzhou Sanan Chem | China national standards | MT | 310.16 | USD | 20251021 |
| Shandong Fusheng | Industrial Grade | MT | 281.97 | USD | 20251021 |