/trʌst ˈɪnstrəmənt/ – Phrase
Definition: Văn bản quy định về quyền lợi và trách nhiệm của các bên trong một quỹ tín thác.
A more thorough explanation: the written document used to formalise the creation of a trust (=an arrangement where a trustee holds and manages property or other assets on behalf of a beneficiary. The trustee is the nominal owner of the property or assets and the beneficiary is the beneficial owner).
Example: No matter what you write into the trust instrument, there are no guarantees that the company won’t be sold.