Chaebol General Motors and Renault. The chaebol debts were not only to state industrial banks but also to independent banks and their own financial services subsidiaries. The scale of the loan defaults meant that banks could neither foreclose nor write off bad loans without themselves collapsing, so the failure to service these debts quickly caused a systemic banking crisis, and South Korea turned to the IMF for assistance. The most spectacular example came in mid-1999, with the collapse of the Daewoo Group, which had some US$80 billion in unpaid debt. At the time, it was the largest corporate bankruptcy in history.
Chaebol lines were critical. In the 1950s and early 1960s, chaebol concentrated on wigs and textiles; by the mid-1970s and 1980s, heavy, defense, and chemical industries had become predominant. While these activities were important in the early 1990s, real growth was occurring in the electronics and high-technology industries. The chaebol also were responsible for turning the trade deficit in 1985 to a trade surplus in 1986. The current account balance, however, fell from more than US$14 billion in 1988 to US$5 billion in 1989. The chaebol continued their explosive growth in export markets in the 1980s. By the late 1980s, the