Circular letter by the Director General for the promotion of industrial relations and worker social security from the Minister of Manpower and Transmigration, in the Republic of Indonesia, Number B.31/PHIJSK/I/2012 on the implementation of constitutional court decision number 27/PUU-IX/2011.  This Circular specifies that for companies which subcontract part of its work to another company through an employment agreement or to another service provider, as set out in Article 64, Article 65 and Article 66 of the Manpower Act Number 13 of 2003.