De or het mantelcontract?

The correct Dutch article is:

het mantelcontract

How to use mantelcontract

the mantelcontracthet mantelcontract
this mantelcontractdit mantelcontract
that mantelcontractdat mantelcontract
our mantelcontractons mantelcontract
your mantelcontractjouw mantelcontract
every mantelcontractelk mantelcontract
which mantelcontract?welk mantelcontract?
a big mantelcontract / the big mantelcontracteen groot mantelcontract, het grote mantelcontract