At the GHM foundry in Sommevoire (Haute-Marne), manual casting methods have remained virtually unchanged since the mid-19th century. The factory also has two semi-mechanized casting yards and a high-speed automated yard. GHM has a production capacity of around 20,000 tonnes of cast iron per year. In addition to timeless products such as Wallace fountains, the product range has been extended to include street lighting, street furniture, and one-piece poles of 10 metres and more.