study of scarce skills and critical needs in the mining minerals sector final report to qualifications authority 13 september 2006 research conducted by contents 1 introduction background 2 aim scope 3 methodology analysis questions on from year 7 wsps survey employers combining adjustment weighting data 4 methodological challenges 6 mqa s electronic database levy paying companies wsp grant application form organising framework for occupations ofo 5 structure 9 subsector company size 10 managers 11 professionals technicians trades workers 14 clerical administrative 17 machinery operators drivers 8 labourers 18 outsourcing 19 profile type