ORCAO was formed in 1987, from the work of the Catholic church, with 12 communities of Sibacjá. It expanded with the invasions of estates close to Ocosingo, and in towns in the municipalities of Chilón, Oxchuc, Huixtán, y Altamirano.
ORCAO was formed in 1987, from the work of the Catholic church, with 12 communities of Sibacjá. It expanded with the invasions of estates close to Ocosingo, and in towns in the municipalities of Chilón, Oxchuc, Huixtán, y Altamirano.