On 7 March 2020, while being used to quarantine COVID-19 patients, it collapsed from overloading resulting from illegal construction, killing 29 people and injuring another 42.

Level 1 contained a car showroom, the hotel lobby and the supermarket undergoing construction to become a restaurant.

A witness said that he had heard a big bang from the external tempered glass of the hotel.

[15][16] The results of the investigation, published in July 2020, revealed that the owners had in May 2016 had added floors within the building, adding a total of two extra floors, which raised the load on the building slightly past its limit at 52100 kN, 100 kN over the design limit.

When converting a ground floor supermarket to a restaurant on 10 January 2020, three supporting columns were found to be seriously deformed, though due to the Chinese New Year, work had not yet commenced until 1 March, where three more columns were discovered to be deformed.