A long history serving high-tech markets

With over 100 years of experience, machine shops across 40 countries and two graphite plants in St Marys Pennsylvania USA, and Chongqing in China, Mersen is a worldwide leader in the production of isostatic graphite. Our production capacity is 12 000 tons and can be easily increased through minor investments to 18 000 tons. Mersen is also the leader in large size isostatic graphite, with the largest cold isostatic press available in the world, both in St Marys USA and Chongqing China.