ROK Ministry of Unification (Via Global Security) 5/27/2004 1. Overview: North Korea is actively pursuing a project to expand and modernize Sungho-ri concrete tie factory in efforts to increase production of concrete railroad ties, the Central Broadcasting Station reported on May 9. 2. Main Points of the Report  A. Within the very first several months … Continue reading North Korea Seeks to Expand Sungho-ri Concrete Tie Factory