There is no such contract for the use of STP function.
STP function becomes available by applying through arrowface.
Usage of STP is optional for trading participants.
In addition, the monthly fee is charged to Sub-participants using STP.
For details, please refer to the following documents at our System Documents Site.
・J-GATE STP Specifications(Version 1.0)
・J-GATE User's Guide(Ver. 1.5)
・Compliance Rules Regarding Connectivity to J-GATE(Ver. 1.4) )