Name of Construction Company Project Name Number of Household Remarks LotteConstruction Sadangdong Lotte Apartment 91 Balcony Window / System Window Kolon Construction Cheonju Kolon Construction 520 Balcony Window / System Window / Interior Works Daesung Construction Shingildong Daesung Youneed 69 Balcony Window / System Window Taeyoung Construction Ilsan Taeyoung Apartment 37 Balcony Window / System Window Youngpoong Construction Anyang Youngpoong Apartment 95 Balcony Window / System Window Isoo Construction Mookdong Isoo Brownstone 292 Balcony Window /System Window /Interior Works Hanhwa Construction Ilsan Hwajung Hanhwa Apartment 93 Balcony Window / System Window Hyundai Construction Jangan Hyundai Hometown 1219 Balcony Window / System Window Samsung Co. Yongin Goosung Samsung Apartment 390 Balcony Window / System Window Samsung Co. Dangsandong Samsung Apartment 1201 Balcony Window / System Window /Interior Works Hanhwa Construction Yongin Hanhwa Apartment 188 Balcony Window / System Window Lotte Construction Sadangdong Lotte Apartment 298 Balcony Window / System Window Daewoo Construction BongCheon Daewoo Apartment 1994 Balcony Window / System Window Lotte Construction Woojangsan Lotte Apartment 1003 Balcony Window / System Window Changbo Construction Yongjongdo Changbo Apartment 366 Balcony Window / System Window Lotte Construction Jamwondong Lotte 2nd Apartment 428 Balcony Window / System Window Sangah Construction Cheongdamdong Sangah Apartment 161 Balcony Window / System Window Daewoo Construction Geojedo Daewoo Apartment 277 Balcony Window / System Window