Hop Lun closed the building for renovations, said Walter Brennan, Hop Lun's Hong Kong-based director of compliance and communications, even though he said engineers found it to be structurally sound.
The eldest brother, Walter Kwok, was kidnapped in 1997 by a man nicknamed "Big Spender" and held for a week until he was ransomed, and a feud between Walter and his two brothers in 2008 dominated Hong Kong newspapers for weeks.