They will be able to achieve this impossibly fast construction rate by using a prefabricated modular technology developed by Broad Sustainable Building, a company that has built 20 tall structures in China so far, including the that 30-story hotel.

Since they built that hotel, the company has been perfecting their technology, which they are now claiming will turn their project into the world’s tallest skyscraper in just three months. That’s a whooping five floors per day, which seems just absurd. According to Construction Week Online, the company is very serious about it. The senior VP of the Broad Group, Juliet Jiang, has publicly said that they “will go on as planned with the completion of five storeys a day.”