Our Subsidiaries

Chemalloy was founded in 1963 by Tony Demos, former President and CEO.
Chemalloy employs approximately 85 people.

Chemalloy specializes in the manufacture of custom sized alloys, metals, minerals and chemicals for various industrial applications.
Most of these can be varied in size and chemical composition and are generally available in lump, granular or powder forms.

nizi-international-companies-logo-chemalloy|   Find out more on www.chemalloy.com

Our Subsidiaries
Miller and Company

Established in 1919 as a distributor of pig iron and metallurgical coke in the Midwestern U.S., Miller has grown into one of the most diversified suppliers of raw materials to the ferrous foundry and steel industry in the U.S., Canada and Mexico.

Miller supplies customers with Sorelmetal, CoorsTek ceramic molten metal filters, briquetted alloys, silicon carbide grain, pig iron, nickel, Milco carbon, ferrophosphorous, ferro-alloys, ferrosilicon based inoculants, cored wire, and Cogebi mica.
Miller owns one carbon and SiC grain processing plant in Mulga, Alabama and another carbon and SiC processing plant in Seneca, Ilinois which also includes the production of SiC, carbon and alloy briquettes.

Miller and Company has a longstanding tradition of Service, Quality, and Integrity under a dynamic team that has solidified the company’s standing as the premier supplier of raw materials to the ferrous foundry and steel industries of North America.

Miller and Company LLC is headquartered in the Chicago suburb of Rosemont, Illinois.

nizi-international-companies-logo-miller|   Find out more on www.millerandco.com

Our Subsidiaries

Keyvest is a leading manufacturer of silicon powder and silicon carbon powder, and is also a marketer of related products as Ferro Silicon Nitride, Fused Silica, Boron Carbide. Keyvest owns equipments for grinding, classifying and packing, providing an extensive range of processed materials. The company was founded in 2005, is headquartered in Liège, Belgium and currently employs about 12 people. 

nizi-international-companies-logo-keyvest|   Find out more on www.keyvestbelgium.be