Siltronic AG is a manufacturer of wafers made of hyperpure silicon, the basis for modern micro- and nanotechnology.

The number of employees were increased in 1961 as they began to add products, such as monocrystals, which were also distributed internationally.

In 1978, Wacker-Chemic built a plant in Portland, Oregon and founded the Wacker Siltronic Corporation.

[9][10] In May 2015, Silitronic AG prepared its Initial Public Offering (IPO) in the regulated market of the Frankfurt Stock Exchange which was completed later that year.

[11][12][13] In 2020, it was announced that Siltronic would be sold to Taiwanese manufacturer GlobalWafers,[14] a subsidiary of Sino-American Silicon Products (SAS), for a good 3.7 billion euros.

[16] The company's shares have been traded in the Prime Standard of the Frankfurt Stock Exchange since June 11, 2015, and were admitted to the TecDAX on December 21 of the same year.

Siltronic AG sells silicon wafers with diameters from 200 mm to 300 mm (8 to 12 inches) with many different features such as: Siltronic AG and Samsung Electronic of South Korea are partners in a joint venture to produce 300mm (12 inch) wafers in a factory in Singapore.