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In South Korea (Republic of Korea), chemicals (including flame retardants) are governed by the Toxic Chemicals Control Act [58]. This act controls the manufacture and use of chemicals in Korea, and new chemicals introduced into commerce in this country as well as any new chemicals made domestically in South Korea. At the time of writing this chapter, gaining access to this list of chemicals in English was not possible for the author of this chapter, so it is unclear if flame retardants are on the list of controlled chemicals. However, given that this law conducts analyses of chemical safety similar to other countries which have banned HBCD, BDPEs, and various metals like Cd and Cr, it seems highly likely that flame retardants with known/established negative PBT profiles are regulated and banned from use in South Korea. Those selling into the South Korean market are encouraged to check the local regulations and see which chemistries are banned from use. Non-halogenated chemistries like red phosphorus may be limited in use in South Korea due to the potential for PH₃ formation when red phosphorus is exposed to humidity (which can be avoided by encapsulation of the red phosphorus).