Totally untested. But I think this will do it.
 
#Region "SetICStatus Helpers"
		Private Sub XFR_FinalizeAddICTransactionStatus(ByVal si As SessionInfo, ByVal globals As BRGlobals, ByVal args As DataQualityEventHandlerArgs)
			Try
				
				Dim objICMatchStatusInfo As ICMatchStatusInfo = DirectCast(args.Inputs(0), ICMatchStatusInfo)
				
				If objICMatchStatusInfo.TransactionState = 40 'Finalized
					Dim intEntityID As Integer = objICMatchStatusInfo.ICMatchTransaction.EntityId
					Dim entMbr As Member =BRApi.Finance.Members.ReadMemberNoCache(si, DimTypeId.Entity, intEntityID)
					Dim readWriteGroup As GroupInfo = BRApi.Security.Admin.GetGroupInfoEx(si, entMbr.ReadWriteDataGroupUniqueID).GroupInfo
					Dim readWriteGroup2 As GroupInfo = BRApi.Security.Admin.GetGroupInfoEx(si, entMbr.ReadWriteDataGroupUniqueID2).GroupInfo
					Dim usrList As New List(Of UserInfo)
					Me.GetUsersInGroup(si, readWriteGroup.Group.UniqueID, usrList)
					Me.GetUsersInGroup(si, readWriteGroup2.Group.UniqueID, usrList)
					
					For Each userSummary As UserInfo In usrList.Distinct()
						'Send the email
						Me.CreateMessageAndSendMail(si, objICMatchStatusInfo, userSummary)
					Next
					
				End If	
								
			Catch ex As Exception
				Throw ErrorHandler.LogWrite(si, New XFException(si, ex))
			End Try
		End Sub
		
		Private Sub GetUsersInGroup(ByVal si As SessionInfo, ByVal groupID As Guid, ByRef usrList As list(Of UserInfo))
		
			Try
				Using dbFwConn As DbConnInfoFW = BRApi.Database.CreateFrameworkDbConnInfo(si)
					Dim sql As New Text.StringBuilder
					sql.AppendLine("WITH ChildUser as
					  (
					  SELECT ChildKey,ChildIsAUser FROM SecGroupChild
					  WHERE ChildIsAUser = 0
					  UNION ALL
					  SELECT b.ChildKey,b.ChildIsAUser FROM SecGroupChild as b
					  INNER JOIN ChildUser as a on a.ChildKey= b.GroupKey
					)
					Select distinct ChildKey from (
					SELECT distinct ChildKey FROM ChildUser
					where ChildIsAUser <> 0
					UNION ALL 
					SELECT distinct ChildKey FROM SecGroupChild
					WHERE ChildIsAUser = 1)p")
					Dim userDT As DataTable = BRApi.Database.ExecuteSqlUsingReader(dbFwConn, sql.ToString, True)
					If userDT.Rows.Count > 0 Then
						For Each userDR As DataRow In userDT.rows
							usrList.Add(BRApi.Security.Admin.GetUser(si, DirectCast(userDR("ChildKey"),Guid)))
						Next	
					End If	
				
				End Using
				
			Catch ex As Exception
				Throw ErrorHandler.LogWrite(si, New XFException(si, ex))
			End Try
		End Sub
		
		Private Sub CreateMessageAndSendMail(ByVal si As SessionInfo, objICMatchStatus As ICMatchStatusInfo, userSummary As UserInfo)
			'------------------------------------------------------------------------------------------------------------
			'Reference Code: 	CreateMessageAndSendMail 
			'
			'Description:		Create the email message body and execute the "Send Mail" function.
			'
			'------------------------------------------------------------------------------------------------------------		
			Try
				Using dbConnApp As DbConnInfo = BRApi.Database.CreateApplicationDbConnInfo(si)					
					Dim emailInfo As New Text.StringBuilder
					emailInfo.AppendLine("To: " & userSummary.User.Email)
					
					'Create the message title
					Dim messageTitle As New Text.StringBuilder
					messageTitle.Append("IC Match for [")
					messageTitle.Append(objICMatchStatus.ICMatchTransaction.EntityId)
					messageTitle.Append(", ")
					messageTitle.Append(objICMatchStatus.ICMatchTransaction.PartnerId)
					messageTitle.Append("] is ready for you to review.")
					messageTitle.AppendLine("")	
					
					'Create the message body
					Dim messageBody As New Text.StringBuilder
					messageBody.AppendLine("IC Match Information:")				
					messageBody.AppendLine("User Name........... " & objICMatchStatus.UserName)					
					messageBody.AppendLine("Time Completed...... " & objICMatchStatus.TimeStamp)										
					messageBody.AppendLine("Comments............ " & objICMatchStatus.Comments)								
					messageBody.AppendLine("")
					
					'Test the email by writing a log message
					ErrorHandler.LogMessage(si, emailInfo.ToString & vbcrlf &  messageTitle.ToString & vbcrlf &  messageBody.ToString)				
				
					'Send an email message
					'Me.SendMail(si, userSummary.User.Email, messageTitle.ToString, messageBody.ToString)
					
				End Using
				
			Catch ex As Exception
				Throw ErrorHandler.LogWrite(si, New XFException(si, ex))
			End Try
		End Sub
#End Region