Masterpage - How to display UserControl after page refresh

Question

Hi,
   I'am using Master Page and add several content pages.I've to display an company address in Master Page as Header.For the first time,when I login to the application the address from "Header.ascx" is properly displayed.But,when I do the action in Content Pages,then the address will be disabled.I'm trying to load the "Header.ascx" UserControl  each and everytime the page loads.How I bring the address from "Header.ascx" in to masterpage  each & every time the page loads?Can anyone help me to solve this isssue? (In Masterpage.Master.cs I include the "Header.ascx" as following:
TableRow _row = new TableRow();
            TableCell _cell = new TableCell();
            _row = new TableRow();
            _row.ID = "CompanyHeaderRow";
            tblMenu.Rows.Add(_row);
            _cell = new TableCell();
            _cell.ID = "CompanyHeaderCell";
            // _cell.ColumnSpan = 2;
            ////UserControl uc = this.LoadControl("~/Header.ascx") as UserControl;
            ////_cell.Controls.Add(uc);
            _cell.Controls.Add(LoadControl("Header.ascx"));
            _row.Cells.Add(_cell);
But the address can't be displayed after the page refresh)