In order to regulate trust companies' participation in stock index futures trading, the Guidelines for Trust Companies' Participation in Stock Index Futures Trading are formulated in accordance with the Trust Law of People's Republic of China (PRC), the Banking Supervision Law of the People's Republic of China, the Measures for the Administration of Trust Companies and the Interim Measures for the Administration of Derivatives Trading of Banking Financial Institutions. 20 1 1 On June 27th, 2008, China Banking Regulatory Commission issued the Business Guidelines with the documentNo. [20 1 1]70, and Article 27 of the Business Guidelines shall come into force as of the date of promulgation.