Sanctions against North Korea started to ease during the 1990s when South Korea’s then-liberal government pushed for engagement policies with the North. The Clinton administration signed the Agreed Framework with North Korea in 1994. However, the relaxing of economic sanctions was short-lived. North Korea continued its nuclear program and officially withdrew from the Nuclear Non-Proliferation Treaty in 2003, causing countries to reinstate various sanctions.
UN Security Council Resolutions were passed after North Korea conducted nuclear tests in 2006, 2009, 2013, 2016, and 2017. Initially, sanctions were focused on trade bans on weapons-related materials and goods but expanded to luxury goods to target the elites. Further sanctions expanded to cover financial assets, banking transactions, and general travel and trade.