AHSGM was created to be the sales and marketing arm of HTI/ AHS. It makes no difference when it's created, the need for a marketing arm was created to provide a particular function (sales & marketing in this case). (See Incorpoartions/ Charters). Wikipedia.com
CHAPTER 1. GENERAL CORPORATION LAW (from the link you provided)
(10) Be an incorporator, promoter or manager of other corporations of any type or kind;
(11) Participate with others in any corporation, partnership, limited partnership, joint venture or other association of any kind, or in any transaction, undertaking or arrangement which the participating corporation would have power to conduct by itself, whether or not such participation involves sharing or delegation of control with or to others;