After Korea's liberation from Japan's colonial rule (August 15, 1945), the President clarified that economic independence should be firmly provided to achieve the complete independence and sovereignty and prosperity of the country and attached a prime importance to the work for laying a foundation for the building of an independent national economy.

With the belief that the way to breaking through difficulties is to rely on its own effort, technology and resources, not on any assistance or the established theory, he had led the working masses to fully display the revolutionary spirit of self-reliance with the consciousness of being the master of the country.

At the 6th Plenary Meeting of the Central Committee of the Workers' Party of Korea held in August Juche 42 (1953), he set forth the basic line of socialist economic construction on giving priority to the growth of the heavy industry while simultaneously developing the light industry and agriculture and energetically guided the struggle for its realization.

He saw to it that machine factories were built across the country to establish the powerful heavy industry with the machine-building industry as its core, and aroused the workers and technicians to the production of motor vehicles, tractors, excavators, bulldozers, electric locomotives and various kinds of machine tools.

He took steps to increase the coal production and propel the construction of hydro-power stations and thermal power plants simultaneously. He also worked heart and soul for building the country's raw material, fuel and power bases and developing its railway transport, including the electrification of railways.

Thanks to his wise leadership, the historic cause of socialist industrialization was accomplished in the country in 14 years.

Today, the DPRK people are vigorously waging the struggle for developing the country's economy and improving the people's livelihood under the banner of self-reliance, in reliance on the solid foundation of the independent national economy provided by the President and strengthened by the guidance of the Party.