On Feb. 3, Juche 49 (1960), he sent the chairman of the General Association of Korean Residents in Japan (Chongryon) a historic letter "On Some Issues to Be Settled in the Work of Chongryon", in which he put forward the orientation and way for Chongryon to perform its sacred mission and duty to meet the requirement of the law that guides its development.

"On Further Strengthening the Chongryon Organization" and other works elucidate the idea of developing Chongryon into a genuine Juche-type overseas citizens' organization which devotedly defends the idea and cause of its leader and shares its destiny with the socialist country to the last.

"Let Us Consolidate and Develop the Successes Achieved in the Work of the Chongryon" and other works set forth the tasks for Chongryon officials to follow the Juche idea only and rally broad masses of compatriots so as to push forward with the patriotic work of Chongryon.

"On Some Tasks Facing the Korean Democratic Women's Union in Japan" and other works clarify the tasks of consolidating Chongryon's organizations at all levels organizationally and ideologically and training the new generations into reliable pillars of the patriotic cause.