CREATE TABLE table_47147 ("Company" TEXT, "Type" TEXT, "Principal activities" TEXT, "Incorporated in" TEXT, "Group's Equity Shareholding" TEXT)

Which Group's Equity Shareholding has a Company of epcor?
SELECT "Group's Equity Shareholding" FROM table_47147 WHERE "Company" = 'epcor'
SELECT "Group's Equity Shareholding" FROM "table_47147" WHERE "Company" = 'epcor'