This division applies only to social purpose corporations organized expressly under this division whether organized or existing under this division or amended, merged or converted into a social purpose corporation in accordance with Chapter 9 (commencing with Section 900) of Division 1, Chapter 11 (commencing with Section 1100) of Division 1 or Chapter 11.5 (commencing with Section 1150) of Division 1, including all flexible purpose corporations formed under this division prior to January 1, 2015, and now existing except as provided in paragraph (2) of subdivision (b) of Section 2601 and paragraph (3) of subdivision (b) of Section 2602.