Between 1993 and 2002, he was member of the European Coal and Steel Community Consultative Committee, between 1993 and 1998 joint secretary of the British Steel Strip Trade Board and of the British Steel Joint Standing Committee, as well as joint secretary of the British Steel European Works Council between 1996 and 1999.
Von 1993 bis 2002 war Brookman Mitglied des European Coal and Steel Community Consultative Committee, von 1993 bis 1998 gemeinsamer Sekretär (Joint Secretary) des British Steel Strip Trade Board und des British Steel Joint Standing Committee, sowie einer von mehreren Sekretären (Joint Secretary) des British Steel European Works Council von 1996 bis 1999.