** Shares of Fletcher Building FBU.NZ fall as much as 2.3%
to NZ$2.930, hitting their lowest level since Oct. 2
** The construction materials supplier said Commerce
Commission is suing its unit Winstone Wallboards over historical
product discounts
** Commerce Commission had in a report identified that
retroactive rebates were harming competition in the market
** Co indicated Winstone intends to defend the proceedings
** Stock down 36.8% YTD, including current session moves
(Reporting by Shivangi Lahiri in Bengaluru)
((shivangi.lahiri@thomsonreuters.com))