When made through the Commissioner by insurers or health maintenance organizations, the Treasurer shall accept and hold in trust: deposits required under this article for a certificate of authority to engage in the insurance business in the State; deposits required under § 19-710(d)(3) of the Health - General Article for a certificate of authority to operate as a health maintenance organization; deposits of domestic insurers, foreign insurers, or alien insurers required under the laws of another state, province, or country as a prerequisite for authority to engage in the insurance business in the other state, province, or country; deposits allowed under § 5-704 of this subtitle; and deposits required under Title 6, Subtitle 3 of this article. Deposits made under subsection (a) of this section shall be in any combination of: cash; or the government securities described in § 5-510(b) or § 5-607(b)(1)(i), (ii), or (iii) of this title, as approved by the Treasurer. Deposits of government securities shall be registered, both as to principal and interest, in the name of the Treasurer as trustee.