sentences:  In June 2007, he joined ZX Automobile Company of North America, Inc., a subsidiary of China America Cooperative Automotive in the position of CTO.With the bankruptcy of Chamco, Tally became CTO and Chief Engineer at Techco International, an automotive products engineering and manufacturing firm.A key project he undertook at Techco was the development of Techco's 3 Liter asymmetric twin-screw Supercharger, integrating high-efficiency gas-compression technology first developed by manufacturers of industrial air compressors such as Atlas Copco, Ingersoll Rand, and Kaeser Kompressoren.