According to the BBC:
But the UN Conference on Trade and Development estimates that foreign direct investment in 2010 was $38m (£24m; 29m euros) and that the total amount invested in North Korea over the past few decades comes to $1.475bn (£940m; 1.13bn euros).
Most of that comes from China.
…
China doesn’t publish details of its economic relationship with North Korea, but the Bank of Korea estimates trade between the two Communist nations has been steadily rising, and reached $3.5bn (£2.2bn / 2.7bn euros) in 2010.
South Korea, meanwhile, has set up the Gaesong Industrial Complex with its northern neighbour, which now employs 50,000 people and contributed heavily to $1.7bn (£1.1bn / 1.3bn euros) of trade between the two Koreas last year.
Read the full story here:
Made in North Korea: Business in a ‘communist monarchy’
BBC
Lucy Williamson
2012-2-15