Drumet Liny i Druty Sp z.o,o. S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 21

Subsidiaries of WireCo WorldGroup (Cayman) Inc.

Name	State or Jurisdiction of Formation
1295728 Alberta ULC	Canada
Aceros Camesa S.A. de C.V.	Mexico
Albino, Maia & Santos, Unipessoal, Limitada	Portugal
Cabos & Lingas – Sociedade Portuguesa de Comércio, Unipessoal, Limitada	Portugal
Casar Drahtseilwerk Saar GmbH	Germany
Corcam S.A. de C.V.	Mexico
Drumet Liny i Druty Sp. z o.o.	Poland
Drumet s.r.o.	Slovak Republic
Incam S.A. de C.V.	Mexico
WireCo WorldGroup Portugal Holdings, SGPS, S.A.	Portugal
Manuel Rodrigues de Oliveira Sá & Filhos, S.A.	Portugal
Drumet Drahtseile GmbH	Germany
Oliveira Holland B.V.	Netherlands
WireCo Mex, S. de. R.I. de C.V.	Mexico
WireCo WorldGroup B.V.	Netherlands
WireCo WorldGroup Inc.	Delaware
WireCo WorldGroup Poland Holdings Sp. z o.o.	Poland
WireCo WorldGroup Sales (Cayman) Ltd.	Cayman Islands
Wire Rope Corporation de Mexico I, S. de R.I. de C.V.	Mexico
Wireline Works Partnership	Canada
WISCO WRCA Co., Ltd.	China
WRCA Canadian Holdings (Luxembourg) S. A´ R.L.	Luxembourg
WRCA Distributor (Cayman) Ltd.	Cayman Islands
WRCA Finance (Luxembourg) S.A´ R.L.	Luxembourg
WRCA Hong Kong Holding Company Ltd.	China
WRCA (Luxembourg) Holdings S. A´ R.L.	Luxembourg
WRCA (Luxembourg) S.A´ R.L.	Luxembourg
WRCA LLC	Delaware
WRCA Portugal Sociedade Unipessoal LDA	Portugal
WRCA US Holdings Inc.	Delaware