Here's why:

* Neutrons are neutral particles: In regular matter, neutrons have no electrical charge.

* Antimatter is the opposite: Antimatter particles have the same mass but opposite charge to their regular matter counterparts.

* Anti-neutron: The antimatter counterpart of the neutron is the anti-neutron. It also has no charge.

Therefore, just like a regular neutron, an anti-neutron also carries no charge.