I have visited at Daewoo Bus Corporation website that I found from Gag Halfrunt's comment at http://imcdb.org/vehicle_336992-Saehan-BV-101.html#Comment804129

I went to the Korean version and found a richer history information on Shinjin Motors at http://www.daewoobus.com/sub_history01.php

One problem with the terrible google/bing translator for April 1964 entry. Can anyone make this out if one can read the Korean language. Thanks.