Microdiamant and Eminess Technologies merge to form Pureon, the leading global supplier of surface finishing solutions for high-tech materials.

Acquisition of US-based Eminess Technologies, a technology leader specializing in advanced critical surface polishing consumables. With this acquisition, Microdiamant doubles the number of employees to 120. The combined global footprint provides improved access to both the U.S. market as well as the European and Asian markets. The two companies' complementary product ranges and combined know-how enables Microdiamant to offer seamless surface finishing solutions from a single source.

Founding of Chinese subsidiary Microdiamant China Co., Ltd in Suzhou City.

Subsidiary company in Japan trades now under the name Microdiamant Japan. Expansion of the range. As well as micron diamond powders and suspensions, grinding pads, diamond compounds and polishing pads are now available.

Opening of the enlarged Surface Lab in Lengwil, Switzerland.

Launch and patenting of IRINO composite polishing pad.

Launch of SPLENDIS universal-use diamond suspensions.

Former Mypodiamond Inc. is renamed to Microdiamant USA, Inc., now offering the full Microdiamant product portfolio to the US market.

Microdiamant GmbH in Kempen, Germany, doubles its production and office surface by moving into its own, new facility.

Launch of SQUADRO, the new generation fine grinding pad.

The Swiss Venture Club's Entrepreneur Award Ostschweiz 2012 goes to Microdiamant.

1952-2012: Microdiamant celebrates 60 years of "diamond fever".

Expansion of micron diamond production capacity to 100m carats per year.

Foundation of Microdiamant GmbH in Kempen, Germany. Acquisition and integration of Oberflächentechnologien Ziesmer.

Launch of Microdiamant's inhouse R&D department.

XP nano-cluster diamond pushes the limits in high-tech applications.

Daniel and Martin Spring acquire Spring Holding AG by MBO.

Invention of GAF (guaranteed agglomerate-free) process for simple preparation of agglomerate-free diamond suspension.

Rudolf Spring AG is renamed to Microdiamant AG.

Third-generation Daniel and Martin Spring take over Rudolf Spring AG.

Acquisition of the Mypolex polycrystalline diamond business from DuPont, USA, the inventor of polycrystalline diamond.

Implementation of a Total Quality Management based management system.

Invention of GAF (guaranteed agglomerate-free) Liquid Diamond.

The company moves into its new headquarters in Lengwil, Switzerland, more than doubling its production capacity.

The companies of the Spring Group are united in the Spring Holding company.

As the first micronizer worldwide, Rudolf Spring AG implements an ISO 9000 certified quality management system.

Kurt Spring joins the company which he will lead for the next 25 years. Under his leadership, Rudolf Spring AG transforms into a globally active company.

Invention of the first stable diamond suspension.

Rudolf Spring AG expands into its first own laboratory building dedicated to the micronizing of diamond powders.

The company is founded by Rudolf Spring under the name Rudolf Spring AG.