The Rubycon Group has been engaged in all aspects of the development, production and sales of electronic parts, centered on aluminum electrolytic capacitors, ever since its foundation in 1952, and through the course of this period have built up a sense of expectation and trust in customers spread throughout the world.

Rubycon specializes in the design and production of aluminum electrolytic capacitors (AECs), film capacitors and power supply units, and M3 Technology is a dedicated authorized supplier of Rubycon products.