MACYRO GROUP <MYO.M> BUYS COMPANIES Groupe Macyro Inc said it agreed to buy two Quebec construction wholesalers, (Nap Dumont (1982) Ltd) and (Nap Transport Cie Ltd) for 3.5 mln dlrs. Macyro said the two companies operate in the construction material, electiricty, plumbing, hardware and locksmithing sectors and had sales of 23.5 mln dlrs last year.