CITY OF INDUSTRY, Calif., Dec 07, 2010 (BUSINESS WIRE) -- International Building Technologies Group, Inc. (OTCBB:INBG) announced today that, pursuant to the signed Letter of Intent between INBG and FHH Sino New Energies Co., Ltd., the audit and due diligence study undertaken by a PCAOB listed auditing firm in Hong Kong and a law firm in Beijing, China have been completed and signed off by these two firms.