Updates on the cold maintenance of the furnace at GMB Glasmanufaktur Brandenburg GmbH from Stock Report Borosil Renewables Ltd. sharing icon for Facebook Twitter sharing icon for sharing Twitter sharing icon on Pinterest Share this icon can be pinned. WhatsApp sharing icon for sharing Email sending button for sharing Updates on the cold maintenance of the furnace at GMB Glasmanufaktur Brandenburg GmbH from Borosil Renewables Ltd. There was a glass leakage incident from GMB’s furnace on July 31, 2022, prior to the purchase of a majority stake of 86% (through wholly owned subsidiaries) in GMB Glasmanufaktur Brandenburg GmbH (GMB) and Interfloat Corporation (Interfloat) in October 2022. GMB runs its manufacturing plant in Tschernitz, Germany, with a single furnace that can produce 300 tonnes per day (TPD).