No Influence?

“It is difficult to get an exact account on how much Beijing is providing North Korea as it has never made this public, but in actuality 70-80 percent of all foreign goods circulating in North Korea comes [sic] through China. . . . Imagine what would happen if China blocked just three of the roads at once for two months, citing maintenance work.”
— Kim Ha-Joong, South Korea’s Ambassador to
China, telling it like it is