 In 1992, the factory was designated by the government of France as an official Monument historique and is on the list to be named a UNESCO World Heritage Site.As a result of the factory expansions, by the mid-1880s production capacity at the Noisiel plant jumped to 125,000 tons annually and the company employed 2000 people.Because of the Menier company's rapid growth, the shortage of workers available from the small village forced the company to try to attract labor from other towns and cities.