Hitachi, Ltd. is a Japanese multinational conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. One of Hitachi’s businesses is social infrastructure and industrial systems, which include elevators and escalators. The industry requires a lot of R&D efforts and testing.

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The H1 Tower is an elevator testing tower in Guangzhou, China, owned by Hitachi. At 273.8 m it is the tallest elevator testing tower in the world. Including the 15 m deep basement, the overall height of the tower measures 288.8 m.

The structure includes 15 elevator test shafts, totaling 2.2 km in length. The longest continuous shaft in the tower is over 250 m long.

H1 Tower supplements Hitachi’s 213.5 m tall G1 Tower in Japan, which was completed in 2010.

According to the Wikipedia