In early February, the Tverskoy District Court of Moscow placed Vladimir Tolkachev, ex-president of Geotech Seismic Exploration (GSR), under house arrest. He is suspected of embezzling and withdrawing about 5 billion rubles through controlled companies. Tolkachev headed Geotech Seismic in 2017. At that time, PJSC occupied about 50% of the seismic exploration market in Russia. […]