Manufacturing in Slovakia became important after the Communists assumed power Many of the remaining manufacturing plants that were privatized after communism included outdated equipment. Thus, foreign direct investment has been extremely important in determining which industries survive the transition to a market economy. Foreign investment was particularly helpful in the areas of transport machines, auto production, and steel production. The most sizable investments were made by the German company Volkswagen and by U.S. Steel, which purchased the large East Slovakia VSŽ Steel plant in the late 1990s. Automobiles and steel are among Slovakia's most successful exports. Chemical production has recently averaged approximately 18 percent of total industrial output and includes chemical fibers and plastics. Other important sectors are the production of textiles, clothing, and leather products such as footwear, fuel and power production, and construction.