As South Korea shows, active participation in international trade does not require free trade. Indeed, had South Korea pursued free trade and not promoted infant industries, it would not have become a major trading nation. It would still be exporting raw materials (e. g., tungsten ore, fish, seaweed) or low-technology, low-price products (e. g., textiles, garments, wigs made with human hair) that used to be its main export items in the 1960s.
Ch. 3, More trade, fewer ideologies, p. 82 - Bad Samaritans: The Myth of Free Trade and the Secret History of Capitalism (2008)