It is listed on the London Stock Exchange and was a former constituent of the FTSE 250 Index.

Crystalox was established as a private limited company in 1982 in the town of Wantage in Oxfordshire specialising in the design and manufacture of equipment for purification and crystal growth of metals, alloys, semiconductors and electro-optic materials.

[3] In June 2007, the company made its debut on the London Stock Exchange to raise additional funds for in-house silicon production and to further expand its international business.

The company's industrial focus comprises the production of the polysilicon raw material at its factory in Bitterfeld in Germany, melting and crystallization of the silicon to form ingots at various sites around Abingdon in the UK, and converting the ingots into thin multicrystalline silicon wafers internally at the company's facility in Erfurt in Germany and externally at subcontractors in Japan.

where they are transformed into solar cells using semiconductor processing technology, linked together in strings and laminated between glass and plastic sheets to form durable modules.