Key Facts
A recent investigation has revealed that Japan Airport Terminal Co., Ltd., the operator of Haneda Airport’s terminal buildings, was involved in improper financial dealings through its subsidiary, Big Wing. According to a report released on May 9, the company’s president, Nobuaki Yokota, was found to have orchestrated a series of transactions aimed at providing financial benefits to a consulting firm with no actual business operations. This firm was led by the son of Makoto Koga, a former secretary-general of Japan’s Liberal Democratic Party.
The report highlights that Big Wing paid approximately 1 billion yen (around $7.3 million) over five years, up to 2016, to the consulting firm under the guise of a business arrangement related to massage chair operations within Haneda Airport. However, the Tokyo Regional Taxation Bureau later identified these payments as tax evasion. Despite the initial findings, payments allegedly continued through another company, prompting Japan Airport Terminal Co. to launch an internal investigation in March 2025.
The internal probe concluded that Yokota had intentionally facilitated these transactions to benefit Koga’s son. Furthermore, the company’s chairman, Isao Takagi, was found to have condoned and encouraged these actions. Both Yokota and Takagi resigned from their positions on May 9 following the release of the report.
This case has drawn significant attention due to the involvement of a high-profile political figure’s family member and the substantial financial sums in question. The findings underscore serious governance and compliance issues within Japan Airport Terminal Co., raising concerns about corporate accountability in the country.
For further details, refer to the original report: Japan Airport Terminal Co. Investigation Report.
Summary
An internal investigation by Japan Airport Terminal Co., Ltd., the operator of Haneda Airport’s terminal buildings, has revealed improper financial transactions involving its subsidiary, Big Wing. According to a report published on May 9, the company’s president, Nobuaki Yokota, orchestrated payments to a consulting firm with no actual business operations. This firm was led by the son of Makoto Koga, a former secretary-general of Japan’s Liberal Democratic Party.
The report states that Big Wing paid approximately 1 billion yen (around $7.3 million) over five years, up to 2016, under the pretense of a business arrangement related to massage chair operations at Haneda Airport. The Tokyo Regional Taxation Bureau later identified these payments as tax evasion. Despite this, payments allegedly continued through another company, prompting an internal investigation in March 2025.
The investigation concluded that Yokota intentionally facilitated these transactions to benefit Koga’s son, with the company’s chairman, Isao Takagi, condoning the actions. Both Yokota and Takagi resigned on May 9 following the report’s release. The case has raised concerns about corporate governance and accountability in Japan.
For more details, refer to the original report: Japan Airport Terminal Co. Investigation Report.
