Gyeonggi Province is definitely the heart of the Korean economy.  The proud home of global leaders such as Samsung Electronics, Hyundai-Kia and LG, Gyeonggi continues to lead the national growth and development.
 
Geographic Advantage
- Metropolitan area surrounding Seoul, the capital of Korea: the heart of the Korean Peninsula as well as Northeast Asia
- Tokyo, Beijing, Osaka, Shanghai and other major Northeast Asian cities accessible within a 3-hour flight

Massive Consumer Market
-  Immediate access to the combined populations of Gyeonggi (12 million), Seoul (10 million) and Incheon (2 million) provides endless market opportunities.
-  Direct connections to the markets of Northeast Asia (including China, Japan and Russia) and the region’s 15 billion consumers

World-leading Enterprises
-  Home of world-leading enterprises including Samsung Electronics, LG Electronics, Hyundai-Kia Motors, Hynix and LG Display as well as many top multination firms such as 3M, Bosch and Siemens.
-  One-third of Korea’s small and medium companies and the largest concentration of the nation’s knowledge-based industries.

Outstanding Human Resources
-  Concentration of knowledge based industries provides convenient access to outstanding human resources (e.g. Knowledge-based IT companies (2006): 37.9% of national total)
-  Easy access to high-quality human resources (e.g. 173 graduate schools, 39 under-graduate schools, 38 technical colleges, 2006)
 
 
KEY INDUSTRIES OF GYEONGGI PROVINCE

AUTOMOBILE INDUSTRY	DISPLAY INDUSTRY	SEMICONDUCTOR INDUSTRY
Gyeonggi Province Production Volume : 1.8 million vehicles Global Market Share 2006 5.5% 2012 10% (estimated)	Global Market Share TFT LCD 39% PDP 56% OLED 42%	Global Market Share DRAM 47% Memory IC 38% Nand Flash 56%

LEADING INDUSTRIES OF GYEONGGI PROVINCE
Automotive
- 25.5% of Korean automobile/ engine makers
- 22.9% of Korean auto parts production

Electronics/IT
- 45.2% of Korea’s companies (3,302 companies nationwide)
- 45.1% of Korea’s personnel (182,760 employees nationwide)
- 56.1% of Korea’s R&D spending (USD 1.74 billion nationwide)

Biotechnology
- 46.9% of Korea’s companies (429 companies nationwide)
- 60.7% of Korea’s personnel (20,976 employees nationwide)
- 68.6% of Korea’s R&D budget (USD 132 billion nationwide)  
 

the source - http://english.gg.go.kr/renewal/business/capital.htm