APPROPRIATE processes were used to select a firm of architects embroiled in a row over the awarding of prime consultancy contracts, the Housing Authority said yesterday. An authority spokesman said it selected architects prior to July 1995 from a central list managed by the Works Branch. It has since introduced 'enhanced' procedures to cope with expected heavier workloads. In 1989, Wong Tung & Partners - a firm run by Edward Ho Sing-tin, the chairman of the authority's buildings committee - was appointed as consultant for Ma On Shan Area 90. The scope of work included production of the master plan as well as the administration of the construction work for Phases 1, 4 and 5, the spokesman said. In 1994, Phase 6 was added and Wong Tung & Partners was offered the appointment as it was considered undesirable to assign another consultant to do the job. The spokesman stressed that for these consultancies, the Housing Department had followed strictly appropriate guidelines and were cognisant of conflict of interest rules. In December 1994, a batch of eight infill site projects were offered to eight consultants through similar selection processes. Wong Tung & Partners was one of the eight firms. The spokesman said all architectural firms were given a fair chance to compete for the authority's work. Democratic Party legislator Lee Cheuk-yan has pledged to investigate the involvement of Mr Ho's firms in consultancy work at this week's meeting of the Legislative Council's housing panel. Mr Ho has not returned any calls to the South China Morning Post on the subject.