The South Korean delegation's visit to the North comes amid increasing hopes once chilly ties between the Koreas are beginning to warm.
A consortium of the state-run rail operator KORAIL, steelmaker POSCO and Hyundai Merchant Marine will dispatch 18 experts to North Korea's northeastern port city Rajin on Tuesday to explore the feasibility of its plan to invest in a rail link between North Korea and Russia, Seoul officials say.
The experts will fly to North Korea from Vladivostok with Russian officials also taking part in the project.
The envisioned 54-kilometer railway will run between the Russian border town of Khasan and the North Korean port city of Rajin.
South Korea's involvement represents part of President Park Geun-hye's push to link energy and logistics infrastructure across the continent.
She agreed to support the joint railway project during summit talks with Russian President Vladimir Putin in Seoul in November last year.
The North's recent peace offensive comes despite Pyongyang's recent call on Seoul to halt its upcoming joint military drills with the U.S.
North Korea issued a statement last Thursday saying that reconciliation and provocations cannot co-exist, using the example of the upcoming inter-Korean family reunions, which are due to start next week, and the drills, which Pyongyang says are practice for war.
In another sign of slow warming of ties, the two Koreas also agreed last Friday to establish an Internet network at their joint Kaesong Industrial Complex.
Connie Kim, Arirang News.