Tekfen Imalat ve Mühendislik A.S. (Tekfen Manufacturing and Engineering Co.) has a modern manufacturing plant with 11.900 m2 (being presently expanded from 9000 m2) of covered shop and 36.000 m2 of open area located at Kocaeli, adjacent to the international port of Derince. The annual working capacity of the plant is 20.000 t, and it employs about 150 experienced personnel. The plant is ISO 9001:2008 certified and holds also ASME "U" "U2" and "S" stamps and A.D. Merkblaetter HP-O, TRD-201, DIN EN 729-2 certificates.

The Company is capable to work with a wide range of materials including high tensile, quenched and tempered carbon steels, clad steels all types of stainless steels, non-ferrous materials such as monel, brass, etc.

The Company is specialized in the engineering and manufacturing of;

• All kinds of storage tanks, i.e. atmospheric, floating roof, dome roof and cone roof tanks up to 150.000 m3 capacity, low and high pressure spherical tanks, low temperature and cryogenic double wall tanks
• Pressure vessels such as drums, columns, reactors
• Shell and tube type heat exchangers, air coolers, condensers
• Semi-trailers and road tankers for LPG, ammonia and similar liquefied gases
• Heat Recovery Steam Generators and Industrial Boilers
• Chlorine cylinders
• Heavy steel structures
• Steel ladles, galvanisation pots
• Pressure piping