Petronas Twin Towers, Kuala Lumpur, Malaysia started to build in 1st March 1993 and its completion date was 31 August 1999 with floor count = 88. The total construction cost was USD 1.6 billion. 1000 million is 1 billion. 1 million is 1,000,000. 1 trillion is 1000 billion.

Source: https://en.wikipedia.org/wiki/Petronas_Towers

Figure 1: Wikipedia Page of Petronas Twin Towers with The Highlight of The Cost of This Building.  Click on the photo above for magnifying mode.

I am Hui-Shin Wong (H.S. Wong or HS Wong), Wong Hui Shin or Shyan H. Wong.