New plant in South Korea for the semicon market

Paris, October 4, 2022 – Mersen, a global expert in electrical power and advanced materials, is inaugurating its new plant in Cheonan, South Korea, at a ceremony tomorrow with more than 300 guests. The site will enable Mersen to meet fast-growing demand on the semiconductor market.

The new facilities will double Mersen’s production capacity in South Korea. Spanning 23,000 square meters, the Cheonan site specializes in the design and manufacture of monocrystalline silicon pulling furnace equipment and complex ion implantation parts for semiconductor production. The former Ssangam plant, which opened in 1990, has been relocated to Cheonan to better meet strong demand from customers, particularly in South Korea and China.

Thanks to this investment, the South Korean site’s sales could double to €60 million in the next five years. There is also sufficient space to potentially accommodate additional facilities in the future if the market continues to grow.

Luc Themelin, Mersen’s Chief Executive Officer, said: “Mersen has grown steadily in South Korea since entering this key market in 1986. We are proud to be advancing our growth strategy here with major loyal customers. Our new site will enable us to become significantly stronger in our area of excellence: graphite-based specialty products for the increasingly important semiconductor markets.” 




Mersen is a global expert in electrical specialties and advanced materials for high-tech industries. With more than 50 industrial sites and 18 R&D centers in 35 countries around the world, Mersen develops custom-built solutions and delivers key products for clients in order to meet the new technological challenges shaping tomorrow’s world. For over 130 years, Mersen has focused tirelessly on innovation to accompany its clients and meet their needs. Be it in wind power, solar power, electronics, electric vehicles, aeronautics, space or countless other sectors, wherever technology is progressing, you will always find a bit of Mersen.

Mersen is listed on Euronext Paris – Compartment B


Véronique Boca
VP, Communication Mersen
Tel. + 33 (0)1 46 91 54 40

Guillaume Maujean
Alexia Gachet
Tel.: +33 (0)1 85 65 83 45

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Mersen: New plant in south Korea for the semicon market