In its April world economic outlook (WorldEconomicOutlook), the International Monetary Fund said the global sales and production of smartphones in 2017 amounted to $3 trillion and 600 billion in 2017. The industry accounts for 5.7% of Chinas exports, and in Ireland, where Apples European business headquarters is located, it is said that only iPhones exports are equivalent to the countrys economic growth (calculated from the point of view of added value) of 1/4. Apple suppliers / competitors, such as Samsung and LG, account for 17.1% of all exports in Korea. IMF points out that this may mean that the crisis is imminent, because the growth of the smart phone industry is slowing down. Through an analysis of Chinas smartphone export trends, the results show that the trend is nonlinear and may peak in September 2015, suggesting that future global smartphone demand may grow more slowly (more by alternative demand rather than new purchase), the report said. This has been confirmed in the latest results of Chinas export data in December 2017. In fact, the global smartphone shipments declined for the first time in 2017. The production of iPhone depends on a very complex network, including assemblers, distributors, components and minerals suppliers, with a total number of hundreds. This product has a greater impact on operators, retailers, application developers and accessories manufacturers.