Greencastle Acquires Highrock Shares Greencastle Resources Ltd. (TSXV-VGN) has acquired 2.5 million common shares of Highrock Resources Ltd. (CSE-HRK) representing approximately 18.78% of the issued and outstanding common shares of Highrock. Share this:TwitterFacebook Deveron Corp. (TSXV-FARM) Partners with USDA on Soil Carbon Program Greencastle Buys More Highrock Resources (CSE-HRK)