Arplast Helice is a former French manufacturer of propellers for light aircraft and microlights.[1] The company was based at Gargas, France. The company appears to have been wound up on 29 April 2015.[2]
The firm's main product was the composite 3-bladed "Ecoprop", which can be ground-adjustable, in-flight adjustable, or automatically folding. The Ecoprop modular propellers are lightweight, have a very slim profile and are very efficient. Also, the firm once produced its own microlight aircraft, the Arplast Micro'B.
Le Dauphiné article - http://www.ledauphine.com/economie-et-finance/2013/12/03/le-concepteur-d-helices-en-carbone-arplast-se-diversifie