China: China National Building Material Company's (CNDM) gypsum wallboard sales volumes rose by 13.1% year-on-year to 1.64Bnm2 in 2016. Sales revenue from the group's lightweight building materials section, that produces wallboard, rose by 8% to US$1.12bn in 2016 from US$1.03bn in 2015. The building materials producer said that improved marketing had helped it maintain its lead as the largest wallboard producer in China. The group runs BNBM and Taishan Gypsum.