EU mergers and takeovers (June 30)

BRUSSELS, June 30 (Reuters) - The following are mergers under review by the European Commission and a brief guide to the EU merger process:

APPROVALS AND WITHDRAWALS:

-- UK mobile supplier Carphone Warehouse (CPW.L), via its wholly owned UK subsidiary TalkTalk Group, acquires British Internet access provider Tiscali UK, a subsidiary of Tiscali SpA (TIS.MI) (approved June 30)

-- Brazilian food products firm Perdigao (PRGA3.SA) enters into a full merger with Brazilian peer Sadia (SDIA4.SA) (approved June 30)

NEW LISTINGS:

-- France's Veolia Eau, a subsidiary of utility group Veolia Environnement (VIE.PA), takes sole control of three French water distribution companies currently controlled jointly by Veolia Eau and Lyonnaise des Eaux, a subsidiary of French energy giant GDF Suez (GSZ.PA) unit Suez Environnement (notified June 23/deadline July 30)

EXTENSIONS AND OTHER CHANGES:

-- U.S. biomedical and pharmaceutical company Pfizer (PFE.N) to acquire U.S. pharmaceutical and healthcare company Wyeth WYE.N (notified May 29/deadline July 6/extended on June 30/new deadline July 20)

FIRST-STAGE REVIEWS BY DEADLINE:

JUNE 30

-- Italian motorway management company Sias (SIS.MI), Italian motorways company Atlantia (ATL.MI) and Spanish concession services company Acciona (ANA.MC) acquire joint control of five Chilean toll motorways, Operacion y Logistica de Infraestructuras, Litoral Central, Vespucio Sur, Gestion Vial and Autopista Nororiente ("Itinere Chilean assets") (notified May 25/deadline June 30/simplified)