Once the steel frame emerged above ground, it quickly began to rise.

Underground construction is also progressing smoothly.

Steel framework for the elevator and staircase core.

The building’s steady progress can be seen from above.

Tower crane at the center of the site

Underground columns supporting the new headquarters are being installed one after another.

Wall of the ramp to the underground parking area, with reinforcing steel bars precisely arranged along the curved surface.

The tower crane can be clearly seen even from above.

A traditional ground-breaking ceremony was held at the end of March.

Reinforcing steel bars have been carefully laid throughout the foundation to firmly support the building.

Underground base isolation devices reduce earthquake vibrations transmitted to the building.

The underground construction progresses by installing a temporary deck and feeding materials from above.

Only the arm of the construction equipment is visible from the road.

Komatsu’s construction equipment is still hard at work.

A view looking down into the basement from the temporary platform.

The temporary platform and equipment in the basement are also visible from above.

The protection panels have finally all been removed.

A temporary platform has been installed. Concrete debris from the basement will be removed through the opening.

This excavator equipped with clamshell telescopic arm plays a key role in removing concrete debris from the basement.

Construction equipment on the ground and in the basement collaborate to carry out the demolition.

The equipment on the ground scoops up the debris from the basement.

Equipment that operates in the basement has shorter arms.

The temporary platform and equipment in the basement are also visible from above.

The protection panels have become this low.

The floor of the second floor being dismantled.

A Komatsu employee watching over the demolition work.

Construction equipment that was lifted to the rooftop has finally come down to the first floor.

Demolition of the fifth floor.

Spraying water as a dust reduction measure.

The iconic hexagonal window frame.

Sections of the demolished building were reduced to small pieces of concrete rubble and transported using a Komatsu hydraulic excavator.

The concrete rubble was lowered to the first floor and loaded onto a transport vehicle using the hydraulic excavator. Komatsu equipment played a vital role here as well.

The height of the protective sheeting was steadily lowered as the demolition progressed and the building's height was reduced.

An aerial view of construction equipment at work in the demolition.

The logo that was brought down from the rooftop was larger than imagined.

The crane that lowered the logo was next used to lift construction equipment for the demolition.

The work began with the tower section a tier above the rooftop.

Three pieces of construction equipment performed efficiently, steadily reducing the building's height.

The building was covered in clean white sheeting to ensure safety and environmental protection at the demolition site.

The temporary fencing as a canvas for messages regarding the Komatsu Reconstruction Challenge.

The demolition work viewed from above.

The entrance hall after removal of the green onyx for relocation.

The large boilers, which had been in use for nearly 60 years, were carefully dismantled by hand.

Each boiler was methodically dismantled with a focus on safety.

The interior materials and cables were removed, and the demolition proceeded while sorting and separating all materials by category.

A view looking up into the open shaft running from the first floor to the rooftop. It is said that this was used to lower waste materials to ground level.

The small yellow machine is Komatsu construction equipment at work on the rooftop.

The old headquarters, with its marble exterior walls and horizontally long hexagonal windows.

The walls of the first-floor elevator hall were adorned with green onyx. The marble was carefully removed for reuse in the new headquarters.

The green onyx in the staircase hall leading to the basement will also be relocated to the new headquarters. Removing it revealed the underlying structure, as shown.

The inside of a room after the fixtures were removed.

Komatsu construction equipment was lifted to the rooftop to transplant the trees in the rooftop garden.

A crane was used to uproot the trees in the rooftop garden.

The crane brought the trees down to ground level in no time.

The trees were lowered to the ground using a crane with a boom long enough to reach the rooftop.

A bird’s-eye view of the rooftop garden. The transplanted trees will be passed on to the new headquarters.