[14.0.1] Taxation of companies engaged in manufacturing trades, certain Trading operations carried on in Shannon Airport and certain trading operations carried on in the Custom House Docks area Reviewed June 2016 The content of this instruction is no longer relevant as the scheme of manufacturing relief expired on 31st December 2010. The relief was only available to companies which commenced a manufacturing trade before 23rd July 1998 or companies which concluded a grant agreement with an industrial development agency on or before 31st July 1998. The scheme expired for other manufacturing companies on 31st December 2002 and for licensed operations in the IFSC and Shannon on 31st December 2005. 1