HARTSVILLE, S.C., July 22, 2013 /CNW/ - Sonoco (NYSE: SON), one of the largest diversified global packaging companies, today released its 2012-2013 Corporate Responsibility Report, outlining the Company's continued progress towards achieving its global sustainability targets. The report's content is defined by Global Reporting Initiative (GRI) G3 Guidelines, which form a voluntary framework of principles and indicators that Sonoco uses to measure and report economic, environmental and social performance.