Singapore subsidiary company is a popular term used for a form of Singapore business entity. A subsidiary company can have different structures but is essentially a Private Limited Company and so is a separate legal entity. Characteristics of a Singapore subsidiary company include: i) 100% foreign ownership is allowed, ii) the company enjoys low tax incentives as per a resident company, iii) repatriation of profits is allowed and iv) the minimum paid up capital required is S$1. v) As a legal person, a subsidiary company can sue and be sued by others.
On the other hand, if you are not responsible for its tax, then you should declare the equipment in Part III of the Business Property Statement (Equipment belonging to others). Where equipment is declared in Part III of the Business Property Statement, the Assessor will also send a Notice to File to the person reported as the equipment's actual owner.