 Maverix Metals Inc told investors it is paying US23.5 million from existing cash to increase its royalty interest in the producing Omolon operation in Russia to 2.5 gross, which will lift the attributable gold equivalent ounces Maverix receives from the project to 5,000 ounces, from 2,000 previously. The firm has struck a deal with Omolon Gold Mining, a subsidiary of Polymetal International PLC, to lift the royalty interest on the project, which sits in the Magadan Region and has produced over 4 million ounces of gold and 21 million ounces of silver since 1996. 