Willy van Riet

Koramic Investment Group NV is a holding company that engages in the management of a diversified portfolio. The company was founded in 1883 and is headquartered in Kortrijk, Belgium.

General Shale Brick, Inc. manufactures and sells bricks, concrete blocks and landscaping materials. The firm produces concrete masonry units, lightweight aggregates and sand. It supplies residential, commercial and specialty architectural bricks and brick pavers. The company was founded in 1928 and is headquartered in Johnson City, TN.

Part of Wienerberger AG, Terca Brick NV is a Belgian company that specializes in brick, stone, and related construction materials.

Tondach Gleinstaetten AG manufactures and markets roofing tiles and bricks. The company's brands include Strangfalz, Landdach, Mulde, Ikarus and Sulm. Tondach Gleinstaetten was founded in 1881 and is headquartered in Gleinstatten, Austria.

Wienerberger Finance Service BV provides financial services The company is headquartered in Zaltbommel, the Netherlands.

Part of Wienerberger AG, Wienerberger Finanz Service GmbH is an Austrian company that provides financial services. The company is based in Vienna, Austria.