(a) (i) the organization by the mutual holding company of a stock savings bank subsidiary and the transferal to such stock savings bank of the substantial part of its assets and liabilities, including all of its deposit liabilities, in accordance with general regulations promulgated by the superintendent of financial services;

(ii) the organization by the mutual savings bank of a mutual holding company and the organization by such mutual holding company of a stock savings bank subsidiary which merges with the mutual savings bank; or

(iii) the reorganization of the mutual savings bank under any other method approved pursuant to general or specific regulations promulgated by the superintendent of financial services.

(b) For the purposes of paragraph (a) of this subdivision, such regulations shall permit the stock savings bank to issue to persons other than the mutual holding company of which it is a subsidiary an amount of common stock and securities convertible into common stock which in the aggregate does not exceed forty-nine per centum of the issued and outstanding common stock of such stock savings bank, provided that if a mutual holding company which owns all of the common stock and securities convertible into common stock of its savings bank subsidiary subsequently determines to make such an issuance it shall pay a fee as prescribed pursuant to section eighteen-a of this chapter. Issued and outstanding securities that are convertible into common stock shall be considered issued and outstanding common stock for the purposes of computing the forty-nine per centum limitation. This paragraph shall not limit the authority of such stock savings bank to issue equity or debt securities other than common stock and securities convertible into common stock. 2. In connection with the reorganization of a mutual savings bank as provided in section two hundred ninety of this article, the mutual holding company may retain or acquire assets of the mutual savings bank to the extent that such assets are not then required to be transferred to or retained by the stock savings bank in order to satisfy capital or reserve requirements of any applicable state or federal law or regulation. 3. A stock savings bank at least fifty-one per centum but less than one hundred per centum of the outstanding common stock of which is owned by a mutual holding company shall have at least one director, but no more than two-fifths of its directors, who are "unaffiliated directors" who shall represent the interests of the minority shareholders. An "unaffiliated director" is a director who is not (a) an officer or employee of the stock savings bank (or any affiliate thereof) or (b) an officer, trustee or employee of the mutual holding company. If the organization certificate or bylaws of the stock savings bank provide that the board of directors shall be divided into two or more classes, then to the extent possible, each class shall contain the same number of unaffiliated directors as each other class.