The Indicated & Mineable Reserve for the limestone project... Based on a PMRC-compliant resource report dated August 2015, entitled Economic Assessment and Ore Estimation of the Agata Limestone Project, the overall Indicated Mineral Resource of the Agata Limestone Project is 35.6 million tonnes with average grades of 55.11% calcium oxide and 97.31% calcium carbonate. This estimate is based on a cutoff grade of 45% calcium oxide and was developed using 100-meter drillhole spacing. ... The Mineable Reserve for the limestone project as presented in the PMRC-certified report is estimated to be 22.5 million tonnes at a grade of 55.2% calcium oxide. The majority of the reserve is classified as Very High Purity. ... Market prices for high-purity limestone generally range from US $50 to over US$700 per metric ton depending on market application, quality and fineness of the product. ...