The Kori Nuclear Power Complex is slated to house ten reactors in a highly populated area in South East Korea, close to the country's second city Busan (3.6 million) and the important industrial city of Ulsan. Five reactors are operational, while three are still under construction. Gori plant 1 opened 1977 with 30 year life-span, extended 10 years in 2007.See more...
The plant has been constructed under the first phase of South Korea's nuclear power program, in which foreign firms were contracted for the provision and construction of reactors, with Korean firms playing a minimal role in order to acquire technological know-how. The primary goal of this first phase was for South Korean industries to gain the knowledge and expertise to manufacture the equipment and components for nuclear power plants. During this period, foreign capital was the primary source of financing nuclear power plant construction, so South Korea required potential contractors to provide financing sources with their bids .
The Korea Electric Power Corporation was the primary project manager for the construction of Gori-1, but foreign firms providing the equipment design and construction services were granted de facto project responsibility (U.S. firm Westinghouse Electric Corporation, General Electric Company (GEC), Gilbert/Commonwealth, Hyundai Engineering and Construction and Dong-A Construction Industrial Corporation) .
The other plants were contructed later, in the second phase of South Korea's nuclear power program called "the component approach , where foreign firms were contracted for the design and provision of main components, while domestic firms were subcontracted for auxiliary components.
In 1995, a project to replace old components was launched that included the replacement of two steam generators and plant auxiliary systems.  The Gori-1 plant was originally scheduled to be decommissioned in 2008 when its license expired, but after a six-month outage in 2007 for upgrades and inspections, Korea Hydro and Nuclear Power Corporation (KHNP) was able to negotiate an extension of the original 30-year operating lifetime for ten additional years to 2017 .
The South Korea nuclear plans encountered opposition and protests, which were primarly focused on the extension of this old plant by 10 years, safety issues being underlined.
Safety issues emerged 2011 & 2012. Sensitivity to the nuclear energy issue in Korea reemerged following the Fukushima accident in Japan 2011. Protests call for immediate closure.
On June 9, 2013 four international activists of Greenpeace set up an aerial camp on a 90-meter tower of the Gwangan Bridge in the port city, calling for a widening of the Emergency Planning Zones (EPZ) around nuclear power plants across the country.
Greenpeace demands that the radius should be widened to at least 30 kilometers to minimize potential damage