For a company that allegedly received at least 36 million euro (RM144 million) from an offshoot of the French defense company DCN, Terasasi (Hong Kong) Ltd is a mysterious company indeed.

It is one of at least 142 names listed on the directory on the 19th floor of a skyscraper at 3 Lockhart Road in Hong Kong's Wan Chai district.

The 19th floor's main tenant is a company called Union Alpha, the Hong Kong arm of an accounting firm that provides "professional services to meet clients' daily business needs, both in Hong Kong, Greater China and globally," including auditing and assurance services, management consulting, accountancy and other services, according to the firm's website.

There is no indication of what Terasasi's business is. It is only listed in the Hong Kong Companies Registry as a "local company"...