It's really important I think to also understand the genesis of the modern conglomerates in Korea in order to understand their history and arrive at modern day practice.
IIR, "A History of Korea: From Antiquity to the Present" by Michael J. Seth is an excellent book that has some great sections on the topic.
I haven't come across any real "management theory" texts out of Korea, in the same way that Kaizen came out of Japan and was all the rage in the 80s and 90s in U.S. management circles. There's probably a few reasons for it, but I think the most compelling one is that in the things that are no real international competitors in the leading industries of the day to the U.S. (software, internet stuff, etc.), so there's no real driver to look abroad and see what the other guy is doing. In the 80s and 90s, Japanese car companies started taking the stuffing out of the American auto industry, then a dominant market, and it forced people to seek out how this was happening. Today "Agile" is all the rage, and nobody is really doing it better.
However, the reverse is happening, as South Korea continues to transition to more of a service oriented economy, and American-style management practices are slowly being integrated into Korean workplaces. There's a pretty direct line from Drucker bringing Kaizen over to modern Agile practices, and I suspect that we'll see a similar Korean evolution of Agile practices that befit the culture.
I would suggest reading: https://www.researchgate.net/publication/317639433_Formal_an...
as well as this short talk https://youtu.be/OHilmaWZVUw