Manori Ravindran International EditorArgonon, the super-indie behind “The Masked Singer U.K.” and “Hard Cell,” has launched a new U.S. production company that marks its first joint venture Stateside.The new outfit, Rose Rock Entertainment, is a JV with producer and former Spoke Studios executive Joe Weinstock, whose executive producer credits include reality hit “Duck Dynasty” for A&E and “Assembly Required” with “Home Improvement” star Tim Allen for History Channel.Launching with offices on the West Coast and Oklahoma, Rose Rock will focus on delivering “cinematic Americana factual content” with an entertainment edge.