The activity fields of Trimetal Engineering and Foreign Trade Company has 3 main cores:

1-Importation and distribution of USA and EUROPEAN construction materials: These materials are used generally for roof covering and siding of residential buildings such as;

• American Asphalt Shingle
• American Vinyl Siding
• American Fibercement Siding
• Roofing Ventilation Products
• Roofing Water Insulation Products(Feltbar ve Icebar)
• OSB (Oriented Strand Board)

Trimetal, also imports lots of construction materials from the USA and EUROPE like; roof windows, guillotine windows, steel exterior doors, and attic stairs.

2-Design, production and site application of Steel Frame American Style Homes: The construction of these one or two story homes with varying sizes from 50sqm to 1000sqm, can be done within as short as 1-3 months.

3- Distributor and Erector of "STAR BUILDING SYSTEMS" which is one of the top three companies of the world in the commercial and industrial steel frame building business. These buildings are designed and manufactured according to the client's needs. All the components -including even the screws- are imported from USA as a complete package.

It offers the most economical and yet aesthetic solutions for hundreds of application fields like; construction of manufacturing plants, warehouses, office buildings, car showrooms, aviation buildings, agricultural buildings and recreation buildings.