An insightful article from the Global Times, which includes the following:
Kim’s three China visits indicate that China-North Korea relations have recovered and developed well … As two sovereign states, China and North Korea have the right to develop friendly relations. Facts have proven that since the outbreak of the North Korean nuclear crisis in the 1990s, stable Sino-North Korean relations have played a positive role in maintaining regional peace and stability.
Some Chinese scholars hold that the China-North Korea relationship could develop into a new strategic partnership if the two make an effort to strengthen bilateral ties in the future. Such a strategic partnership would play a constructive role in the region. North Korea’s desire for peaceful development, to ease relations with other countries and build a new international environment has presented an opportunity for Sino-North Korean cooperation.
Opening up is an inevitability if a country wants to develop. China will be a reliable strategic partner capable of supporting North Korea’s political security during its course of opening up.