Gateway is one of the few Bretonian corporations allowed to transit in Kusari space.
The founding of Muroto Trade Center was indeed allowed by the Admiralty.
As for the Gateway and Liberty Trade Shipping vessels that will supply this base, we would require the callsigns of all these ships, unless they all share a common starting tag, like 'LTS|', for example.
If that is so, please indicate us the tag used by the Gateway and the Liberty Trade Shipping supplying fleet.
That said, if your intent is to give the Gateway affiliation to Muroto Trade Center, i'm afraid we will have to ask you to use a KSP or KNF affiliation instead.
While Gateway isn't banned from Kusari, the war with Bretonia is quite recent, and the Kusari population's resentment can be long to appease.
Alternatively, you can also request to use another corporation's affiliation.