A shop in South Korea's capital specializing in goods made in the North has run nearly $140,000 through its tills in just three months of business, helping dispel the notion that products from the impoverished state are shoddy and undesirable.

The Kaesong Industrial Complex Shop opened in May showcasing North Korea and the skills of its workers, to present the country as a viable business partner to the prosperous South.

"North Korean employees are young and are fast learners, and we use materials from the South. So the quality is just as good as products of South Korean brands, at relatively lower prices," said shop vice president Lee Joung-duk.