Green light for $111m limestone mine extension in NSW Southern Highlands By Michael Mapstone on September 22, 2021 Resources Projects, Construction Projects, Rock, Limestone and Clay Mining, Industrial New South Wales, Southern Highlands Planners have given the go-ahead to a $111 million extension of a limestone mine in the NSW Southern Highlands. Boral Cement... To read the rest of this article, please log in using the form below, or sign up now. Log In