From the KoreaStrategic.com website:
Koreastrategic, Inc. is a unique service company established to assist foreign companies in the challenging task of doing business in or with North Korea (officially known as the “Democratic People’s Republic of Korea” — or “DPRK”).
Unique?
There are dozens of bodies specializing in North Korea — but the vast majority are academic institutions or “think-tanks” …
… a handful of businesses offering advice on North Korea, ranging from tourist travel to consulting to business group visits. One or two very good at what they do — and recommended on this site.
… but only one company which, in a service devoted exclusively to business dealings with North Korea, offers the unique combination of:
Over a decade of business experience in Korea …
Thousands of hours experience in international business transactions …
Korean language skills …
Hundreds of hours in business negotiations with the DPRK, and …
Thirteen years’ prior experience in international legal practice.