additional
US /əˈdɪʃ.ən.əl/
UK /əˈdɪʃ.ən.əl/

1.
adicional, extra
added, extra, or supplementary to what is already present or available
:
•
We need additional information before we can proceed.
Necesitamos información adicional antes de poder proceder.
•
There will be an additional charge for delivery.
Habrá un cargo adicional por la entrega.