CNA in talks to sell China water treatment plant, shares surge 50% Visual from the company website Joji Thomas Philip April 13, 2015 PremiumShares of Singapore-listed engineering firm CNA Group rallied 50 per cent, Monday, to close at 4.2 cents after the company said it was in talks to sell its waste water treatment plant in China. Continue reading this story with a subscription to DealStreetAsia. Subscribe Already a subscriber? Log in Should your colleagues be reading this article too? Contact us for corporate subscriptions at firstname.lastname@example.org.