Boral chief executive Mike Kane says he is getting on with the job of running the building materials group as best he can in a difficult economy and will not speculate on what the motives of Kerry Stokes' Seven Group, the new 10 per cent shareholder, might be.

Mr Kane said he was squarely focused on trying to steer Boral through very tough market conditions for the next two months until the full-year financial results in August.