EXHIBIT 21

SUBSIDIARIES OF THE REGISTRANT

Subsidiary |  | Jurisdiction
Axiall Holdco, Inc. |  | Delaware
Axiall, LLC |  | Delaware
Georgia Gulf Lake Charles, LLC |  | Delaware
Royal Plastics Group (U.S.A.) Limited |  | Delaware
Rome Delaware Corporation |  | Delaware
Axiall Corporation |  | Delaware
Rome Acquisition Holding Corporation |  | Nova Scotia ULC
Novo Management, Inc. |  | Nevada
Novo Capital Inc. |  | Nevada
Royal Window and Door Profiles Plant 13, Inc. |  | Pennsylvania
Royal Window and Door Profiles Plant 14, Inc. |  | Washington
Plastic Trends, Inc. |  | Michigan
Royal Outdoor Products, Inc. |  | Indiana
RBS (U.S.A.) Limited |  | Delaware
Royal Group Sales (USA) Limited |  | Nevada
Bluegrass Products LLC |  | Delaware
Royal Mouldings Limited |  | Nevada
Royal Group, Inc. |  | Canada
Royal Window Coverings (USA) LP |  | Texas
Exterior Portfolio, LLC |  | Ohio
6630987 Canada Inc. |  | Canada
Le-Ron Plastics Inc. |  | British Columbia
Royal Ventures Land Holdings Corp. |  | Philippines
Royal Ventures Construction & Development, Inc. |  | Philippines
Eagle Spinco Inc. |  | Delaware
Axiall Taiwan Ltd |  | Taiwan
Eagle Holdco 3 LLC |  | Delaware
Eagle US 2 LLC |  | Delaware
Axiall Canada, Inc. |  | Canada
RS CoGen LLC |  | Louisiana
Axiall Ohio, Inc. |  | Delaware
Eagle Pipeline, Inc. |  | Louisiana
PHH Monomers, LLC |  | Louisiana
Mexaxiall, S. de R.L. de C.V. |  | Mexico
Vinyl Solutions, LLC (Joint Venture) |  | Delaware
6632149 Canada Inc. |  | Canada
1299239 Ontario Limited |  | Ontario
Royal Vinylbilt Limited |  | Ontario
Roybridge Financing Trust |  | Quebec
Advanced Profiles, S.A. de C.V. |  | Mexico
Eagle Natrium LLC |  | Delaware
Taiwan Chlorine Industries, Ltd. |  | Taiwan
Dartmouth Extrusion Limited |  | Ontario