De or het salarisonderhandeling?

The correct Dutch article is:

de salarisonderhandeling

Rule Words ending in -ing: almost always de. See the rule

How to use salarisonderhandeling

the salarisonderhandelingde salarisonderhandeling
this salarisonderhandelingdeze salarisonderhandeling
that salarisonderhandelingdie salarisonderhandeling
our salarisonderhandelingonze salarisonderhandeling
your salarisonderhandelingjouw salarisonderhandeling
every salarisonderhandelingelke salarisonderhandeling
which salarisonderhandeling?welke salarisonderhandeling?
a big salarisonderhandeling / the big salarisonderhandelingeen grote salarisonderhandeling, de grote salarisonderhandeling