Complex sentence: Their general outlook was similar to Japanese EMUs; trainsets 1-01 ~ 1-14 were assembled by various Japanese companies, though trainsets 1-15 ~ 1-41 were built by Korean companies including Daewoo Heavy Industries under license.
Split into simpler sentences: Their general outlook was similar to Japanese EMUs built before them; trainsets 1-01 ~ 1-14 were assembled by various Japanese companies. However, trainsets 1-15 ~ 1-41 were built by Korean companies including Daewoo Heavy Industries under license.