W. Va. Code § 31A-4-14
(a) Every state banking institution which files the reports required in section fifteen of this article and which is not otherwise prohibited by the commissioner or federal bank regulators from doing so, has and may exercise the following powers:
(d) Any bank having its main office or a branch located in this state pursuant to subsection (c) of this section may offer trust services, but not deposit taking services, as described, permitted and authorized in this section or other applicable sections of this code through an affiliated nonbanking subsidiary of a bank holding company, a nonbanking entity in which the bank owns an interest along with other insured depository institutions, or its own nonbanking subsidiary if the nonbanking affiliate, subsidiary or jointly owned entity: