Chapter IV Internet Application in Enterprise Operation I. Internet Application in Key Links of Enterprise Operation (I) Internet-Based Reform of the Supply Chain As of December 2016, 60.0% of companies with Internet access had deployed the IT system, up by 13.4 percentage points compared with 2015. Among them, 50.4%, 28.2% and 25.9% had installed the office automation (OA) system, the enterprise resource planning (ERP) system and the customer relationship management (CRM) system, respectively. IT System Construction in Companies 70% 60.0% 60% Where: 46.6% 44.8% 50.4% 50% 40% 28.2% 30% 22.0% 25.9% 20% 18.6% 10% 0% applying IT system OA ERP CRM 2015 2016 Source： Statistical Survey on Internet Application in Chinese Enterprises 2016.12 Figure 14 IT System Construction in Companies The enterprises that carried out online sales accounted for 45.3% of the national total up to December 2016. During the 12th Five-Year Plan period, e-commerce market developed rapidly, quadrupling its turnover. The year of 2016 is the first year of the 13th Five-Year Plan. E-commerce market remains robust, enterprise engagement continues to deepen, and the proportion of enterprises engaged in online sales rise substantially. 22 The 39th Statistical Report on Internet Development in China