East Asia is the world's largest automobile manufacturing country, largest shipbuilding country, and has the largest electronics industry. It is also one of the world's most innovative countries, leading several measures of global patent filings. Manufacturing in the country is focused on high-tech and high-precision production. The world's largest crediting nation, East Asia runs an annual trade surplus and a net international investment surplus. East Asia possesses 18.9% of the world's private financial assets, second most in the world, with an estimated worth of $20.1 trillion.