South Korea and Romania have pledged to enhance defense industry cooperation, including joint production of weapons, as South Korea aims to become the world s fourth-largest arms exporter. South Korea s Hanwha Aerospace is reportedly in talks for a 1 trillion won ($725.7 million) deal to supply K9 howitzers to Romania, its first defense contract with the country. Meanwhile, Poland is set to sign a $1.6 billion contract for 70 Chunmoo rocket artillery units from Hanwha Aerospace, as part of its $22 billion arms purchase from South Korea.