| Vendor | Spec | Unit | Price | Currency | Date |
| Weifang Yahua Chem | Industrial Grade | MT | 4948.19 | USD | 20251204 |
| Weifang Yahua Chem | Industrial Grade | MT | 4802.67 | USD | 20251202 |
| Weifang Yahua Chem | Industrial Grade | MT | 4805.04 | USD | 20251201 |
| Weifang Yahua Chem | Industrial Grade | MT | 4803.68 | USD | 20251127 |
| Weifang Yahua Chem | Industrial Grade | MT | 4661.28 | USD | 20251126 |
| Weifang Yahua Chem | Industrial Grade | MT | 4657.92 | USD | 20251124 |
| Weifang Yahua Chem | Industrial Grade | MT | 4447.58 | USD | 20251114 |
| Weifang Yahua Chem | Industrial Grade | MT | 4445.01 | USD | 20251111 |
| Weifang Yahua Chem | Industrial Grade | MT | 4372.29 | USD | 20251105 |
| Weifang Yahua Chem | Industrial Grade | MT | 4373.59 | USD | 20251031 |