KTRT Joint Venture, or abbreviated "KTRT JV" or shorter "KTRT", means the team formed by KUMAGAI GUMI, TAIWAN KUMAGAI, RSEA, and TA-YO-WEI. KTRT JV, a team specializing in construction and architecture and experienced in electrical/mechanical/plumbing works, was the main-contractor of "Taipei Financial Center (Taipei 101) Project", one of the world's tallest skyscrapers and the greatest construction project in Taiwan ever.
References
KTRT Joint Venture Wikipedia(Text) CC BY-SA