China: Financial analyst Jefferies has estimated that Chinese gypsum wallboard sales will retain their current strength despite a property sector crash following the collapse of developer China Evergrande. Dow Jones has reported that the analyst rated the gypsum wallboard industry as 20 - 30% exposed to effects in the property market. It contrasted this with other building materials such as float glass and coatings which are 50 - 70% exposed to the present fallout.