Name of Construction Company Project Name Number of Household Remarks Samsung Construction Anamdong Samsung Apartment Contract Balcony Window Lotte Construction Busan Guseodong Apartment Contract Balcony Window Korea National Housing Corp. Gongju Shingwan Apartment Contract Balcony Window Korea National Housing Corp. Bucheon Sosa Onbit Apartment Contract Inside Window / Balcony Window Korea National Housing Corp. Incheon Nonhyun Section 4/5/8 Contract Inside Window / Balcony Window Lotte Construction Bangbae Lotte Apartment Contract Inside Window Kumho Construction Namyangju Onamri Apartment Contract Inside Window Kumho Construction Dongtan Kumho Apartment Contract Inside Window Neulpooroon Industry Osan Neulpooroon Apartment Contract Inside Window Boram Construction Shinwoldong Boram Apartment 134 Balcony Window Dongyang Express Construction SeochodongResidential and Commercial Complex Contract Curtain Wall Tomato Construction Youngdeungpo Site 134 Curtain Wall With General Construction Youngdeungpo Site Contract AL Insulating Combination Window