 Industry in Kigali formed only 14% of the city's GDP in 2014, focused on a small industrial zone set up in the 1970s.Challenges for the sector include the high cost of importing raw materials into a land-locked country, as well as substandard infrastructure and a lack of skilled workers.In 2011, the parliament passed a law establishing special economic zones in Rwanda, the first of which was established in 2014 on Masoro Hill in Gasabo district, close to Kigali International Airport.