Notes to the Consolidated Financial Statements as at 31 December <strong>2010</strong>2.23 - Non-current assets held for saleNon-current assets (or discontinued operations) are classified as held for sale whenever it is determined that their value will be recovered through their sale and not throughtheir continued use. This situation is considered to occur only when: (i) the sale is highly probable; (ii) the asset is available for sale immediately in its current conditions; (iii)the management is committed to a sales plan and, (iv) it is expected that the sale will take place within the period of twelve months.Non-current assets (or discontinued operations) classified as held for sale are measured at the lowest value of their book value and respective fair value minus the costs oftheir sale.2.24 - Earnings per shareEarnings per share are calculated by dividing the earnings attributable to the ordinary shareholders of TD,SA by the weighted average number of shares in circulation duringthe year.The diluted earnings per share are calculated by dividing the earnings attributable to the ordinary shareholders of TD,SA by the weighted average number of shares in circulationduring the year, adjusted by potential ordinary diluting shares.The potential ordinary diluting shares can result from options over shares and other financial instruments issued by the Group, convertible into TD,SA shares.2.25 - Subsequent eventsEvents occurring after the balance sheet date that provide additional information about conditions that existed on the balance sheet date are duly reflected in the consolidatedfinancial statements.Events occurring after the balance sheet date that provide additional information on conditions that occurred after the balance sheet date are disclosed in the notes to theconsolidated financial statements.3 - ALTERATIONS OF POLICIES, ESTIMATES AND ERRORSDuring the year ended on 31 December <strong>2010</strong>, there were no alterations to the accounting policies considered in the preparation of the financial information of TD-EC relativeto the year ended on 31 December 2009 (see Introductory Note) and referred to in the respective notes, and no significant material errors were recorded or alterations madeto the accounting estimates relative to previous years.4 - COMPANIES INCLUDED IN THE CONSOLIDATION PERIMETERAs at 31 December <strong>2010</strong>, Teixeira Duarte, S.A. and the following controlled companies were included in the consolidation, by the full method:Company name Head office Effective percentageholdingINTERNAL MARKETCONSTRUCTIONBEL-ere - Engenharia e Reabilitação de Estruturas, S.A. Edifício 1, Lagoas Park 100.00%Porto SalvoCONSTRUSALAMONDE, ACE Edifício 2, Lagoas Park 92.50%Porto SalvoEPOS - Empresa Portuguesa de Obras Subterrâneas, S.A. Edifício 1, Lagoas Park 100.00%Porto SalvoOFM - Obras Públicas, Ferroviárias e Marítimas, S.A. Edifício 1, Lagoas Park 60.00%Porto SalvoSOMAFEL - Engenharia e Obras Ferroviárias, S.A. Edifício 1, Lagoas Park 60.00%Porto SalvoTeixeira Duarte – Engenharia e Construções, S.A. Edifício 2, Lagoas Park 100.00%Porto Salvo162
Notes to the Consolidated Financial Statements as at 31 December <strong>2010</strong>Company name Head office Effective percentageholdingCEMENT, CONCRETE AND AGGREGATESC + P.A. - Cimento e Produtos Associados, S.A. Edifício 1, Lagoas Park 52.00%Porto SalvoMARINERTES, S.A. Edifício 1, Lagoas Park 51.00%Porto SalvoCONCESSIONS AND SERVICESINVICTAAMBIENTE - Recolha de Resíduos e Limpeza Pública, S.A. Praça do Bom Sucesso, nº 61 - Escritórios 501 e 502 100.00%PortoRECOLTE - Recolha, Tratamento e Eliminação de Resíduos, S.A. Edifício 1, Lagoas Park 100.00%Porto SalvoSATU-Oeiras - Sistema Automático de Transporte Urbano, S.A. (a) Edifício Paço de Arcos, E.N. 249/3 49.00%Paço de ArcosTDGI - Tecnologia de Gestão de Imóveis, S.A. Edifício 1, Lagoas Park 100.00%Porto SalvoTDHOSP - Gestão de Edifício Hospitalar, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoREAL ESTATEBONAPARTE - Imóveis Comerciais e Participações, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoFundo de Investimento Imobiliário Fechado TDF Edifício 2, Lagoas Park 100.00%Porto SalvoIMOPEDROUÇOS - Sociedade Imobiliária, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoIMOTD - SGPS, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoPARCAUTO - Sociedade Imobiliária, S.A. Edifício 2, Lagoas Park 99.80%Porto SalvoQUINTA DE CRAVEL - Imobiliária, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoTDE - Empreendimentos Imobiliários, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoTD VIA - Sociedade Imobiliária, S.A. Edifício 2, Lagoas Park 93.75%Porto SalvoTDF - Sociedade Gestora de Fundos de Investimento Imobiliário, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoTeixeira Duarte - Gestão de Participações e Investimentos Imobiliários, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoTRANSBRITAL - Transportes e Britas Pio Monteiro & Filhos, S.A. Pedreira das Perdigueiras - Laveiras 100.00%Paço de ArcosV8 - Gestão Imobiliária, S.A. Edifício 2, Lagoas Park 99.90%Porto SalvoHOTEL SERVICESESTA - Gestão de Hotéis, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoEVA - Sociedade Hoteleira, S.A. Av. República, nº 1 100.00%FaroLAGOASFUT - Equipamento Recreativo e Desportivo, S.A. Edifício 2, Lagoas Park 100.00%Porto SalvoLAGOAS HOTEL, S.A. Edifício 2, Lagoas Park 100.00%Porto Salvo163