Following the U.S, China is the second largest arms producer in the world. The Stockholm International Peace Research Institute released their annual report that showed data from numerous companies and the three main sectors in arms sales; aerospace, electronics and land systems. In the past China was not included on the top-100 list due to their secrecy on production and sales. Also, out of the 20 companies with the highest sales, 11 were from the U.S, 6 in Western Europe, and 3 based in Russia. If the four largest China-based companies were included, they would all rank in the top 20 with three falling in the top 10.