Contact details including number
Press release regarding the studio's anima game "Ark of Sinners"
I am not sure why you were having difficulties tracking down the information. This took only a few minutes of cross-referencing links. Without intending insult you might wish to consider looking into something like the following:
Either way I wish you luck in your quest to make a fan game.
It took a while for me to notice this, due to being busy with other things, and that's something I don't think you'd be inclined to hear about.
You will notice in the top right of the thread page is a button [Follow this topic], by clicking on it you can ensure yourself email notification of a change in the thread.