Function ConcatUniq(xRg As Range, xChar As String) As String
'updateby Extendoffice 20151228
Dim xCell As Range
Dim xDic As Object
Set xDic = CreateObject("Scripting.Dictionary")
For Each xCell In xRg
xDic(xCell.Value) = Empty
Next
ConcatUniq = Join$(xDic.Keys, xChar)
Set xDic = Nothing
End Function