VN’s Vicostone denies conflict of interest, after cross acquisition by competitor Vicostone products, visual from the website Nguyen Thi Bich Ngoc February 26, 2015 PremiumVietnam based engineered-stone manufacturer Vicostone, has denied that it had any “conflict of interests” after the cross acquisition by its rival company Phuong Hoang Xanh A&A (Phenikaa). 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 email@example.com.