Border Communities Against Brexit say they've successfully sought inclusion at the All-Island Civic Dialogue on Brexit.
They say they'll now be included at an all-Ireland summit on Brexit later this week.
"After seeking inclusion in the All Island Civic Dialogue on Brexit, due to take place on Wednesday November 2nd, Border Communities Against Brexit have welcomed their invitation to attend," a statement from the group read.
Lead spokesperson for the group Declan Fearon, from Armagh said:
"Border Communities Against Brexit are a group of people from all sectors – business, community, farming - as well as individuals who have come together out of concern of the impact an exit from the EU would have on the island of Ireland.
"Therefore we thought we had a right to be amongst the civic society groups, trade unions, business people, non-governmental organisations and the main political parties on the island of Ireland invited to participate in the discussions set to take place on Wednesday in Dublin.
The forum's been set up by Irish Prime-minister Enda Kenny - as part of an 'all-Island conversation' on the issue.
Mr. Fearon says he's "prepared" to represent everyone who voted to remain during the EU Referendum campaign.
"I have been advised that the session is highly participatory and I am more than prepared to go along and not only represent the group, but to represent the 440,707 people in the North who voted to remain within the EU," he said.
"Our votes should be respected and our wishes to remain must be upheld. We want to make sure our voices are heard in Dublin, London and Brussels and our involvement in the discussions on Wednesday is a step towards that," he added.
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