Preliminary Design and Detailed Design, Jinju-Station Relocation
  Detailed Design, Kyoungbu LIne (Suwon-Cheonan) Double-track Electric Railway
  Preliminary Design and Detailed Design, Railway Junction of Joongang Line and Seoul Subway Line 7

  Detailed Design, Bugang Station Railway Bed
  Preliminary Design, Donghae Line (Namjeong~Yeonghae) Railway Bed
  Complementary Design, Kyongjun Line (Bansung~Jinjoo) Section 10 Railway Bed

  Preliminary Design and Detailed Design, Jinju~Gwangyang Double-track Electric Railway Bed
  Detailed Design, Donghae Line (Yeonghae~Byeonggok) Section 10 Railway Bed
  Preliminary Design and Detailed Design, Seongnam~Yeoju Double-track Electric Railway Section 8 (T/K)
  Preliminary Design and Detailed Design, Jinju~Gwangyang Double-track Electric Railway Section 2 (T/K)

  Feasibility Study and Preliminary Design, Gunjang Industrial Complex Access Railway
  Detailed Design, Kyoungbu High-Speed Railway Bedding Section 10-1
  Detailed Design Service for Sungnam~Yeojoo Double-track Electric Railway Section 8

  Preliminary Design, Honam High-speed Railway Section 5
  Detailed Design, Gunjang Industrial Complex Access Railway Section 1, 2 Railway Bed
  Preliminary Design and Detailed Design, Jeonla LIne (Iiksan~Sinli) Double-track Electric Railway (BTL)

  Preliminary Design and Detailed Design, the Inlet Railrood to Yeongil bay in Pohang
  Detailed Design, Roadbed construction of Wonju~Gangneung Railroad, Section 2
  Complementary Design, Donghae Railroad Line (Pohang~Samcheok), Section 11,12
  Master plan and preliminary design, the relocation of facilities around Busan station

  Detailed Design, Seoul Subway Line 7 (Cheongdam~Onsu)
  Preliminary and Detailed Design, Deajeon Railway Line Section 1-2
  Preliminary and Detailed Design, Busan Subway LIne 2, Section 3 (T/K)

  Preliminary and Detailed Design, Seoul Subway Line 9, Section 907 (T/K)
  Preliminary and Detailed Design, Seoul Subway Line 6, Dongmyo-Station Junction (T/K)
  Alternative Design, Seoul Subway Line 9, Section 905 (T/K)

  Alternative Design, Busan Subway Line 3, Section 1 (T/K)
  Preliminary and Detailed Design, Busan Subway Line 3, Section 327 (T/K)
  Preliminary and Detailed Design, Seoul Subway LIne 7, Section 704 (T/K)

  Detailed Design, New Bundang Subway Line (Kangnam~Jungja)
  Preliminary Feasibility Study for Busan Subway Line2 Expansion (Songjung Area)

  Preliminary Design, Sasang~Hadan Line, Busan Subway, Section 1 (T/K)
  Preliminary and Detailed Desing for Hanam Line, Extension of Line 5
  Preliminary Design, Yangsan Line (Nopo~BukJeong), Busan Subway, Section 3 (T/K)
  Feasibiliy Study and Master Plan for the metro railway of Dobongsan ~ OkJeong